[R] Removing objects except user-defined functions

2015-02-19 Thread philippe massicotte
Dear R users.

I would like to remove all object from my workspace except the function I have 
defined. However, is I use rm(list = ls()) everything is cleared. I was 
thinking to typeof to get information about objects, but I could not get it 
working right.

Thank in advance,
Phil
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Evaluating a formula

2015-01-16 Thread philippe massicotte
Hi all.

How we evaluate a formula in R?

Ex.:

params - list(a = 2, b = 3)
x - seq(1,10, length.out = 100)

func1 - as.formula(y ~ a*x^2 + b*x)

##How to evaluate func1 using x and the params list
???


Thank you in advance,
Phil

  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Substitute initial guesses of parameters in a function

2014-12-03 Thread philippe massicotte
Hi everyone, I have a formula like this:

f - as.formula(y ~ p0a * exp(-0.5 * ((x - p1a)/p2a)^2))

I would like to dynamically provide starting values for p0a, p1a, p2a. Is 
there a way to do it?

#Params estimates
p - c(12, 10, 1)

# This is where I have difficulties
mystart - substitute(...)

nls(formula = f, start = mystart)

Regards,
Philippe
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Substitute initial guesses of parameters in a function

2014-12-03 Thread philippe massicotte
Thank you!


 Date: Wed, 3 Dec 2014 08:02:17 -0500
 From: murdoch.dun...@gmail.com
 To: pmassico...@hotmail.com; r-help@r-project.org
 Subject: Re: [R] Substitute initial guesses of parameters in a function
 
 On 03/12/2014 7:37 AM, philippe massicotte wrote:
  Hi everyone, I have a formula like this:
 
  f - as.formula(y ~ p0a * exp(-0.5 * ((x - p1a)/p2a)^2))
 
  I would like to dynamically provide starting values for p0a, p1a, p2a. Is 
  there a way to do it?
 
 Just give a named vector of starting values.
 
  #Params estimates
  p - c(12, 10, 1)
 
 Should be p - c(p0a = 12, p1a = 10, p2a = 1)
 
  # This is where I have difficulties
  mystart - substitute(...)
 
  nls(formula = f, start = mystart)
 
 Now start = p will work.  No need to mess with substitute.  (And no need 
 to use as.formula on the very first line; that's already a formula.)
 
 Duncan Murdoch
 
  Regards,
  Philippe
  
  [[alternative HTML version deleted]]
 
  __
  R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
  https://stat.ethz.ch/mailman/listinfo/r-help
  PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
  and provide commented, minimal, self-contained, reproducible code.
 
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Formula with dynamic number of variables

2014-11-21 Thread philippe massicotte
Hi everyone.

I have a non-linear model specified as this (6 variables, a0, S, K, p0, p1, p2):

fit - nlsLM(formula = dat ~ a0 * exp(-S*(x - 250)) + K + ( C ) )

where C = (p0*exp(-0.5*((x-p1)/p2)^2))

The problem is that I do not know in advance how many component (C) I will have 
in the model. That means It could be:

nlsLM(formula = dat ~ a0 * exp(-S*(x - 250)) + K + ( 
(p0*exp(-0.5*((x-p1)/p2)^2)) ) )

or 

nlsLM(formula = dat ~ a0 * exp(-S*(x - 250)) + K + ( 
(p0*exp(-0.5*((x-p1)/p2)^2)) ) +   ( (p0b*exp(-0.5*((x-p1b)/p2b)^2)) ))

or


nlsLM(formula = dat ~ a0 * exp(-S*(x - 250)) + K + ( 
(p0*exp(-0.5*((x-p1)/p2)^2)) ) +   ( (p0b*exp(-0.5*((x-p1b)/p2b)^2)) +   ( 
(p0c*exp(-0.5*((x-p1c)/p2c)^2

So I was wondering if it was possible to dynamically build the formula that I 
will use in my model? The first part of my model will always be a0 * exp(-S*(x 
- 250)) + K, I just want to add a certain number of components dynamically.

I guess it will be related with reformulate() but I can't not find how to 
make it works.

Thank you for your help,
Philippe

  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] legend position

2013-12-02 Thread philippe massicotte
Hi all. 
I'm ploting a raster and I can't find the proper way to move the legend. For 
example,
r = raster(system.file(external/test.grd, package=raster))plot(r)
How can I put the legend at the desired position?
Thank in advance,Phil 
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] legend position

2013-12-02 Thread philippe massicotte
Thank you for reply.
If I'm not wrong, legend(...) will works for discrete elements.  I'm not sure 
hot to use it for a colorbar legend sur as the one in the example bellow.
Phil
 Date: Mon, 2 Dec 2013 11:49:19 -0800
 From: c...@witthoft.com
 To: r-help@r-project.org
 Subject: Re: [R] legend position
 
 See ?legend .   you can add a legend directly to an existing plot.  An
 example:
 
 legend('topright',c('hot','cold'),lty=1,col=c('red','green'),bg='white')
 
 Now if you're trying to place the legend outside the plot area (i.e. in some
 other part of the window),
 you'll need to invoke par(xpd=TRUE) . See the help at ?par .
 
 
 Filoche wrote
  Hi all. 
  I'm ploting a raster and I can't find the proper way to move the legend.
  For example,
  r = raster(system.file(external/test.grd, package=raster))plot(r)
  How can I put the legend at the desired position?
  Thank in advance,Phil 
  [[alternative HTML version deleted]]
  
  __
 
  R-help@
 
   mailing list
  https://stat.ethz.ch/mailman/listinfo/r-help
  PLEASE do read the posting guide
  http://www.R-project.org/posting-guide.html
  and provide commented, minimal, self-contained, reproducible code.
 
 
 
 
 
 --
 View this message in context: 
 http://r.789695.n4.nabble.com/legend-position-tp4681489p4681492.html
 Sent from the R help mailing list archive at Nabble.com.
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] legend position

2013-12-02 Thread philippe massicotte
Thank you, I'll try to work with lattice.
Regards,Phil

 Date: Mon, 2 Dec 2013 12:06:50 -0800
 From: c...@witthoft.com
 To: r-help@r-project.org
 Subject: Re: [R] legend position
 
 It occurs to me that perhaps you're referring to the 'color bar' on the right
 of the plot.  AFAIK you cannot get at that from the raster::plot method.  
 However  lattice::levelplot does allow you to manipulate or remove that
 colorbar.
 
 
 
 
 --
 View this message in context: 
 http://r.789695.n4.nabble.com/legend-position-tp4681489p4681497.html
 Sent from the R help mailing list archive at Nabble.com.
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] legend position

2013-12-02 Thread philippe massicotte
Thank you David, it is exactly what I needed.
Regards,Phil

 From: dcarl...@tamu.edu
 To: pmassico...@hotmail.com; r-help@r-project.org
 Subject: RE: [R] legend position
 Date: Mon, 2 Dec 2013 14:29:06 -0600
 
 It is not straightforward unless you want the legend in the
 right or the bottom margins. To put the legend inside the plot
 region it is simplest to use image() to plot the raster file and
 then image.plot(legend.only=TRUE) to add the legend. In addition
 to reading the help page for plot{raster}, you also need the
 pages for image{raster} and image.plot{fields}. Here are two
 simple examples.
 
 image(r,  col=rev(terrain.colors(255)))
 plot(r, horizontal=TRUE, smallplot=c(.15, .5, .84, .86),
 legend.only=TRUE)
 
 image(r,  col=rev(terrain.colors(255)))
 plot(r, smallplot=c(.15, .17, .5, .85), legend.only=TRUE)
 
 -
 David L Carlson
 Department of Anthropology
 Texas AM University
 College Station, TX 77840-4352
 
 -Original Message-
 From: r-help-boun...@r-project.org
 [mailto:r-help-boun...@r-project.org] On Behalf Of philippe
 massicotte
 Sent: Monday, December 2, 2013 1:22 PM
 To: r-help@r-project.org
 Subject: [R] legend position
 
 Hi all. 
 I'm ploting a raster and I can't find the proper way to move the
 legend. For example,
 r = raster(system.file(external/test.grd,
 package=raster))plot(r)
 How can I put the legend at the desired position?
 Thank in advance,Phil   
   [[alternative HTML version deleted]]
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible
 code.
 
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] data manipulation

2013-11-22 Thread philippe massicotte
Hi everyone.
I have a list like this:
neutral_classes = list(A = 71:100, B = 46:70, C = 21:45, D = 0:20)
and I'm trying to return the letter of the named vector for with an integer 
belong. For example, B if I use the value 50.
Any help would be greatly appreciated.
Regards,Phil  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] data manipulation

2013-11-22 Thread philippe massicotte
Thank you everyone for your suggestions.

 Date: Fri, 22 Nov 2013 18:04:16 +
 From: pbu...@pburns.seanet.com
 To: pmassico...@hotmail.com; r-help@r-project.org
 Subject: Re: [R] data manipulation
 
 The final ) went missing in the command
 starting 'names(neutralVec) - '.
 
 On 22/11/2013 17:51, Patrick Burns wrote:
  I think a list is the wrong structure,
  a vector would be better since you can
  use 'match':
 
  # transform data structure:
  neutralVec - unlist(neutral_classes)
 
  names(neutralVec) -
  names(neutral_classes[rep(1:length(neutral_classes),
  sapply(neutral_classes, length))]
 
  # get one or more results with 'match':
  names(neutralVec[match(c(50, 20, 10, -4), neutralVec)])
 
  # result:
  # [1] B D D NA
 
 
  Pat
 
 
  On 22/11/2013 16:58, philippe massicotte wrote:
  Hi everyone.
  I have a list like this:
  neutral_classes = list(A = 71:100, B = 46:70, C = 21:45, D = 0:20)
  and I'm trying to return the letter of the named vector for with an
  integer belong. For example, B if I use the value 50.
  Any help would be greatly appreciated.
  Regards,Phil
  [[alternative HTML version deleted]]
 
  __
  R-help@r-project.org mailing list
  https://stat.ethz.ch/mailman/listinfo/r-help
  PLEASE do read the posting guide
  http://www.R-project.org/posting-guide.html
  and provide commented, minimal, self-contained, reproducible code.
 
 
 
 -- 
 Patrick Burns
 pbu...@pburns.seanet.com
 twitter: @burnsstat @portfolioprobe
 http://www.portfolioprobe.com/blog
 http://www.burns-stat.com
 (home of:
   'Impatient R'
   'The R Inferno'
   'Tao Te Programming')
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] data manipulation

2013-11-22 Thread philippe massicotte
Hi again.
I realized that the example I give is not valid, because the number I'm using 
is not an integer (ex. 50.1).
So I thought using 
is.between = function(x, a, b) {  (x - a)  *  (b - x)  0}
But I'm not sure how to use it with lapply to avoid looping in my code.
Regards,Phil
 From: pmassico...@hotmail.com
 To: r-help@r-project.org
 Date: Fri, 22 Nov 2013 18:17:03 +
 Subject: Re: [R] data manipulation
 
 Thank you everyone for your suggestions.
 
  Date: Fri, 22 Nov 2013 18:04:16 +
  From: pbu...@pburns.seanet.com
  To: pmassico...@hotmail.com; r-help@r-project.org
  Subject: Re: [R] data manipulation
  
  The final ) went missing in the command
  starting 'names(neutralVec) - '.
  
  On 22/11/2013 17:51, Patrick Burns wrote:
   I think a list is the wrong structure,
   a vector would be better since you can
   use 'match':
  
   # transform data structure:
   neutralVec - unlist(neutral_classes)
  
   names(neutralVec) -
   names(neutral_classes[rep(1:length(neutral_classes),
   sapply(neutral_classes, length))]
  
   # get one or more results with 'match':
   names(neutralVec[match(c(50, 20, 10, -4), neutralVec)])
  
   # result:
   # [1] B D D NA
  
  
   Pat
  
  
   On 22/11/2013 16:58, philippe massicotte wrote:
   Hi everyone.
   I have a list like this:
   neutral_classes = list(A = 71:100, B = 46:70, C = 21:45, D = 0:20)
   and I'm trying to return the letter of the named vector for with an
   integer belong. For example, B if I use the value 50.
   Any help would be greatly appreciated.
   Regards,Phil
   [[alternative HTML version deleted]]
  
   __
   R-help@r-project.org mailing list
   https://stat.ethz.ch/mailman/listinfo/r-help
   PLEASE do read the posting guide
   http://www.R-project.org/posting-guide.html
   and provide commented, minimal, self-contained, reproducible code.
  
  
  
  -- 
  Patrick Burns
  pbu...@pburns.seanet.com
  twitter: @burnsstat @portfolioprobe
  http://www.portfolioprobe.com/blog
  http://www.burns-stat.com
  (home of:
'Impatient R'
'The R Inferno'
'Tao Te Programming')
 
   [[alternative HTML version deleted]]
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Trying to avoid nested loop

2013-10-04 Thread philippe massicotte
Dear R users.
I'm trying to avoid using nested loops in the following code but I'm not sure 
how to proceed. Any help would be greatly appreciated.
With regards,Phil
X = matrix(rnorm(100), 10, 10)
## Version with nested loopsresult = 0
for(m in 1:nrow(X)){  for(n in 1:ncol(X)){if(X[m,n] != 0){  result 
= result + (X[m,n] / (1 + abs(m - n)))}  }}
## No loop-sum(ifelse(M  0, M/??? , 0))

  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Trying to avoid nested loop

2013-10-04 Thread philippe massicotte
Thank you for your answer. This is what I needed. 


 From: s.elli...@lgcgroup.com
 To: r-help@r-project.org
 Date: Fri, 4 Oct 2013 15:13:49 +0100
 Subject: Re: [R] Trying to avoid nested loop
 
 
  I'm trying to avoid using nested loops in the following code but I'm
  not sure how to proceed. Any help would be greatly appreciated.
  With regards,Phil
  X = matrix(rnorm(100), 10, 10)
  result = 0
  for(m in 1:nrow(X)){  
  for(n in 1:ncol(X)){
  if(X[m,n] != 0){  
  result = result + (X[m,n] / (1 + abs(m - n)))
  }  
  }
  }
 First, you don't need  the 'if', do you? If X[m,n]==0 (rare for a floating 
 point number) (X[m,n] / (1 + abs(m - n)) will be zero anyway.
 
 Then, depending on the matrix size, you can probably do the whole thing using 
 an index array.
 
 Something like:
 
 idx - as.matrix( expand.grid(1:nrow(X), 1:ncol(X)) )
 result - sum(  X[idx] / apply(idx,1, function(x) 1+abs(diff(x))) )
 
 #... which seemed to do the identically the same thing as your loop when I 
 tried it.
 
 S Ellison
 
 
 ***
 This email and any attachments are confidential. Any use...{{dropped:8}}
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Combining rasters

2013-09-06 Thread philippe massicotte
Hi everyone.

I would like to know if it is possible to combine rasters in R to form a 
collage.

For example, I would like to place 2 copies of the R logo side by side.


r = raster(system.file(external/rlogo.grd, package = raster))



After reading the help file (maybe I missed it) I did not find a way to do it.

Any help would be appreciated.

Sincerely,
Phil  
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Problem with converting F to FALSE

2013-09-05 Thread philippe massicotte
Look at colClasses in ?read.csv

 Date: Thu, 5 Sep 2013 18:14:49 +0530
 From: kiran4u2...@gmail.com
 To: r-help@r-project.org
 Subject: [R] Problem with converting F to FALSE
 
 Hi,
 I have a peculier problem in R-Project that is when my CSV file have one
 column with all values as 'F' the R-Project converting this 'F' to FALSE.
 Can some one please suggest how to stop this convertion. Because I want to
 use 'F' in my calculations and show it in screen. for example my data is
 like
 
 sex  group
 F   1
 F   2
 F   3
 
 but when I use read.csv and load the csv file data is converting it to
 
 sex  group
 FALSE   1
 FALSE   2
 FALSE   3
 but i want it as source data like
 
 sex group
 F  1
 F  2
 F  3
 
 
 Thanks in advance,
 D V Kiran Kumar
 
   [[alternative HTML version deleted]]
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Histogram

2013-09-04 Thread philippe massicotte
Hi everyone.
I'm currently translating some Matlab code into R. However, I realized that the 
hsit function produce different results in both languages.
in Matlab, hist(1:10, 10) will produce 10 bins with a count of 1 in each, but 
in R it will produce 9 classes with count of 2,1,1,1,1,1,1,1,1.
I'm a bit embarrassed to ask such question, but why R is not producing 10 
classes as requested?
Thanks in advance,Phil
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Histogram

2013-09-04 Thread philippe massicotte
Thank you everyone for your help.


 Date: Wed, 4 Sep 2013 20:00:02 -0400
 From: murdoch.dun...@gmail.com
 To: dcarl...@tamu.edu
 CC: pmassico...@hotmail.com; ruipbarra...@sapo.pt; r-help@r-project.org
 Subject: Re: [R] Histogram
 
 On 13-09-04 4:44 PM, David Carlson wrote: Good question. It turns out 
 that the manual page does not tell
   the whole story.
 
 Do you really think the manual page would be improved if it went into as 
 much detail as you give below?  It does say clearly that breaks is a 
 suggestion only.  I don't think it would be clearer if it explained 
 exactly how the suggestion is used. It would just be more complicated, 
 and less likely to be read.
 
 Duncan Murdoch
 
 
   Looking at the source code for hist.default,
   the function starts with the number of breaks suggested by
   nclass.Sturges(), but then this number (or any other number of
   breaks that you specify) is passed to pretty() along with the
   maximum and the minimum values of the data (ie range(data)) to
   create pretty break intervals. In your example,
   nclass.Sturges() always recommends 8 breaks, but the number of
   the breaks changes based on the minimum and maximum values. So
   the only way to get exactly the number of breaks you want is to
   specify the break intervals yourself.
  
   David Carlson
  
  
   -Original Message-
   From: r-help-boun...@r-project.org
   [mailto:r-help-boun...@r-project.org] On Behalf Of philippe
   massicotte
   Sent: Wednesday, September 4, 2013 3:02 PM
   To: Rui Barradas
   Cc: r-help@R-project.org
   Subject: Re: [R] Histogram
  
   Thank you everyone.
   Try executing this:
   replicate(100, length(hist(rnorm(100), nclass = 10)$counts))
   I'm still not sure why the number of bins (classes) is not
   consistent.
   Thank in advance.
  
   Date: Wed, 4 Sep 2013 20:27:36 +0100
   From: ruipbarra...@sapo.pt
   To: pmassico...@hotmail.com
   CC: r-help@r-project.org
   Subject: Re: [R] Histogram
  
   Hello,
  
   See the arguments 'right' and 'include.lowest' of ?hist.
   To give what you want, try instead
  
   h1 - hist(1:10, 10)  # counts are 2, 1, 1, ...
   h2 - hist(1:10, breaks = 0:10)  # all counts are 1
  
  
   and see the difference between h1 and h2, components 'breaks'
   and 'counts'.
  
   Hope this helps,
  
   Rui Barradas
  
   Em 04-09-2013 19:34, philippe massicotte escreveu:
   Hi everyone.
   I'm currently translating some Matlab code into R. However,
   I realized that the hsit function produce different results in
   both languages.
   in Matlab, hist(1:10, 10) will produce 10 bins with a count
   of 1 in each, but in R it will produce 9 classes with count of
   2,1,1,1,1,1,1,1,1.
   I'm a bit embarrassed to ask such question, but why R is not
   producing 10 classes as requested?
   Thanks in advance,Phil   
[[alternative HTML version deleted]]
  
   __
   R-help@r-project.org mailing list
   https://stat.ethz.ch/mailman/listinfo/r-help
   PLEASE do read the posting guide
   http://www.R-project.org/posting-guide.html
   and provide commented, minimal, self-contained, reproducible
   code.
  
  
  [[alternative HTML version deleted]]
  
   __
   R-help@r-project.org mailing list
   https://stat.ethz.ch/mailman/listinfo/r-help
   PLEASE do read the posting guide
   http://www.R-project.org/posting-guide.html
   and provide commented, minimal, self-contained, reproducible
   code.
  
   __
   R-help@r-project.org mailing list
   https://stat.ethz.ch/mailman/listinfo/r-help
   PLEASE do read the posting guide 
 http://www.R-project.org/posting-guide.html
   and provide commented, minimal, self-contained, reproducible code.
  
 
  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] RCurl and google trends

2013-05-29 Thread Philippe Massicotte
Dear R users.

 

We are currently developing a R package (GTrendsR) that allows to retrieve
data from google trends. To do so, I’m using the RCurl library. At this
point everything works perfectly (i.e. the data obtained from R is identical
to the data obtained directly from the web site). However, after 5-10
queries I get a “quota excess limit” message. If I log manually on google
trend web site, it still works (i.e. no quota problems).

 

So, that let me think it must be something related to the way I connect to
google with R. More specifically, I suspect it something about how I define
the connection with curlSetOpt in relation with cookies. I know it might not
be obvious, but if someone has an idea :)

 

Here’s my code.

 

gConnect = function(usr, psw)

{

  loginURL - https://accounts.google.com/accounts/ServiceLogin;

  authenticateURL - https://accounts.google.com/accounts/ServiceLoginAuth;



  ch - getCurlHandle()

  

curlSetOpt(curl = ch,

 ssl.verifypeer = FALSE,

 useragent = Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6;
en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13,

 followlocation = TRUE,

 cookiejar = ./cookies,

 cookiefile = ./cookies)

  

  ## Google Account login

  loginPage - getURL(loginURL, curl = ch)

  

  

  galx.match - str_extract(string = loginPage, pattern =
ignore.case('name=GALX\\s*value=([^]+)'))

  galx - str_replace(string = galx.match, pattern =
ignore.case('name=GALX\\s*value=([^]+)'), replacement = \\1)

  

  authenticatePage - postForm(authenticateURL, .params = list(Email = usr,
Passwd = psw, GALX = galx), curl = ch, .opts = list(verbose = F))

  

  

  

  return(ch)

}

 

With regards,

Phil

 

--

Philippe Massicotte, Ph. D.

Stagiaire postdoctoral – Postdoctoral Research Fellow

 

Université du Québec à Trois-Rivières (UQTR)

Département de Chimie-Biologie

Centre de Recherche sur les Interactions Bassins Versants- Écosystèmes

aquatiques (RIVE)

Pavillon Léon-Provancher Local 3413

3351, boul. des Forges CP 500

Trois-Rivières (QC) G9A 5H7

CANADA

 

Tel: (819) 376-5011 #3402

Fax: (819) 376-5084

Courriel: philippe.massico...@uqtr.ca

Web site :  http://anotherrblog.blogspot.ca/
http://anotherrblog.blogspot.ca/

 

 

 


[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Fine control of plot

2013-03-12 Thread philippe massicotte
Hi everyone.
I'm trying to create a graph where I could plot some lines on the right side. 
Here an example:
layout(matrix(c(1,2), 1, 2, byrow = TRUE), widths=c(6,2), heights=c(1,1))
x = 1:100y = rnorm(x)+xplot(x,y)
reg = lm(y~x)abline(reg, col = red)
plot(1, type=n, axes=F, xlab=, ylab=, xlim = c(-1,1), ylim = c(min(y), 
max(x)))segments(-0.25,min(reg$fitted.values),0.25,min(reg$fitted.values))segments(-0.25,max(reg$fitted.values),0.25,max(reg$fitted.values))segments(0,min(reg$fitted.values),0,max(reg$fitted.values))

However, I cant figure out how to make it a bit nicer by removing extra space 
to the right.
Any help would be greatly appreciated.
Regards,Phil  
[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Fine control of plot

2013-03-12 Thread philippe massicotte
Hi and thank you for your answer. 

Sorry for the html post, here's the code: (you missed a break line between +x 
and plot(...) 

layout(matrix(c(1,2), 1, 2, byrow = TRUE), widths=c(6,2), heights=c(1,1)) 

x = 1:100 
y = rnorm(x)+x 
plot(x,y) 

reg = lm(y~x) 
abline(reg, col = red) 

plot(1, type=n, axes=F, xlab=, ylab=, xlim = c(-1,1), ylim = c(min(y), 
max(x))) 
segments(-0.25,min(reg$fitted.values),0.25,min(reg$fitted.values)) 
segments(-0.25,max(reg$fitted.values),0.25,max(reg$fitted.values)) 
segments(0,min(reg$fitted.values),0,max(reg$fitted.values)) 

I hope my question is more obvious after you urn this example. 

Regards, 
Phil


 Date: Tue, 12 Mar 2013 15:33:40 -0400
 Subject: Re: [R] Fine control of plot
 From: sarah.gos...@gmail.com
 To: pmassico...@hotmail.com
 CC: r-help@r-project.org
 
 Hi,
 
 You posted in HTML by mistake, so your code was mangled:
 
  I'm trying to create a graph where I could plot some lines on the right 
  side. Here an example:
  layout(matrix(c(1,2), 1, 2, byrow = TRUE), widths=c(6,2), heights=c(1,1))
  x = 1:100y = rnorm(x)+xplot(x,y)
  reg = lm(y~x)abline(reg, col = red)
  plot(1, type=n, axes=F, xlab=, ylab=, xlim = c(-1,1), ylim = 
  c(min(y), 
  max(x)))segments(-0.25,min(reg$fitted.values),0.25,min(reg$fitted.values))segments(-0.25,max(reg$fitted.values),0.25,max(reg$fitted.values))segments(0,min(reg$fitted.values),0,max(reg$fitted.values))
 
 I figured out where the linebreaks go, but I can't run this:
 
 y = rnorm(x)+xplot(x,y)
 
 What's xplot() doing here?
 
  However, I cant figure out how to make it a bit nicer by removing extra 
  space to the right.
 
 Can you explain further what you're trying to do? Plot spacing is
 controlled with par() for base graphics, but I really don't understand
 what you're after.
 
 --
 Sarah Goslee
 http://www.functionaldiversity.org  
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Fine control of plot

2013-03-12 Thread philippe massicotte
xpd=TRUE might works well.

I'll give it a try.

Thank you for your assistance,
Phil

 Date: Tue, 12 Mar 2013 16:07:05 -0400
 Subject: Re: [R] Fine control of plot
 From: sarah.gos...@gmail.com
 To: pmassico...@hotmail.com
 CC: r-help@r-project.org

 Okay, so what you really want to do is be able to set a wide right
 margin and draw some segments there? Using layout() is not the best
 way to go about this: as you've discovered, you can't control the area
 assigned.

 You can cheat with layout(), as in:
 layout(matrix(c(1,1,1,2), nrow=1))

 but the better way is to see xpd within ?par as described here:
 https://stat.ethz.ch/pipermail/r-help/2009-July/206311.html

 along with par()$mai to set the margins appropriately.

 Sarah

 On Tue, Mar 12, 2013 at 3:50 PM, philippe massicotte
 pmassico...@hotmail.com wrote:
  Hi and thank you for your answer.
 
  Sorry for the html post, here's the code: (you missed a break line between 
  +x and plot(...)
 
  layout(matrix(c(1,2), 1, 2, byrow = TRUE), widths=c(6,2), heights=c(1,1))
 
  x = 1:100
  y = rnorm(x)+x
  plot(x,y)
 
  reg = lm(y~x)
  abline(reg, col = red)
 
  plot(1, type=n, axes=F, xlab=, ylab=, xlim = c(-1,1), ylim = 
  c(min(y), max(x)))
  segments(-0.25,min(reg$fitted.values),0.25,min(reg$fitted.values))
  segments(-0.25,max(reg$fitted.values),0.25,max(reg$fitted.values))
  segments(0,min(reg$fitted.values),0,max(reg$fitted.values))
 
  I hope my question is more obvious after you urn this example.
 
  Regards,
  Phil
 
 
  Date: Tue, 12 Mar 2013 15:33:40 -0400
  Subject: Re: [R] Fine control of plot
  From: sarah.gos...@gmail.com
  To: pmassico...@hotmail.com
  CC: r-help@r-project.org
 
  Hi,
 
  You posted in HTML by mistake, so your code was mangled:
 
   I'm trying to create a graph where I could plot some lines on the right 
   side. Here an example:
   layout(matrix(c(1,2), 1, 2, byrow = TRUE), widths=c(6,2), heights=c(1,1))
   x = 1:100y = rnorm(x)+xplot(x,y)
   reg = lm(y~x)abline(reg, col = red)
   plot(1, type=n, axes=F, xlab=, ylab=, xlim = c(-1,1), ylim = 
   c(min(y), 
   max(x)))segments(-0.25,min(reg$fitted.values),0.25,min(reg$fitted.values))segments(-0.25,max(reg$fitted.values),0.25,max(reg$fitted.values))segments(0,min(reg$fitted.values),0,max(reg$fitted.values))
 
  I figured out where the linebreaks go, but I can't run this:
 
  y = rnorm(x)+xplot(x,y)
 
  What's xplot() doing here?
 
   However, I cant figure out how to make it a bit nicer by removing extra 
   space to the right.
 
  Can you explain further what you're trying to do? Plot spacing is
  controlled with par() for base graphics, but I really don't understand
  what you're after.


 --
 Sarah Goslee
 http://www.functionaldiversity.org  
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Combining boxplot

2013-02-25 Thread Philippe Massicotte

Hi everyone.
 
I have two data frames that contain the same variables but with different

number of observation.
 
I would like to know it was possible to combine the data so I can have

paired boxplot on the same figure.
 
For example,
 
df1 = data.frame(x = rnorm(100))

df1$type = ifelse(df1$x = 0 , type1, type2)
 
df2 = data.frame(x = rnorm(50,0,2))

df2$type = ifelse(df2$x = 0 , type1, type2)
 
## How to combine boxplot

boxplot(df1$x~df1$type)
boxplot(df2$x~df2$type)
 
df1 would be observed data whereas df2 would be simulated data.
 
I would like to have the two categories (type1 and type2) on x axis and a

colour to differentiate simulated vs observed datra.
 
Regards,

Phil

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Help with layout

2013-02-22 Thread philippe massicotte
Dear R users. 

I'm new with layout and I can't figure how to teak my graphs. 

I have the following code: 

layout(matrix(c(1,2,3), 3, 1, byrow = TRUE), heights=c(0.3,0.3,0.6)) 
boxplot(rnorm(100), horizontal=TRUE, axes=FALSE) 
boxplot(rnorm(100), horizontal=TRUE, axes=FALSE) 
hist(rnorm(100)) 


Is it possible to have the two horizontal boxplot closer to each other? 

With regards, 
Phil


[[alternative HTML version deleted]]

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.