Well, if I understand what you want to do, it's straightforward, ?[
(pay attention to the use of column names) and ?grep would pick out
the columns you want and you could then use mapply or maybe rowMeans
or whatever to get your summaries.
HOWEVER ... I think what you should really should do is
Hello Everyone,
I have a question about how best to check dates for entry errors. I recently
discovered that R will read the incorrectly entered date 11/23/21931 without
producing a warning or an error message at least under some circumstances.
as.Date(11/23/21931, format = %m/%d/%Y)
[1]
On Wed, 11 Jan 2012, David Winsemius wrote:
Then R will not find it. (Actually there will be no .RData file until R
executes save.image() at the end of the session. R does not create a fresh
.RData at the beginning of a session.)
David,
That's good to know.
Could I then specify which
On Jan 11, 2012, at 3:55 PM, Christopher G Oakley wrote:
I need some help summarizing complex data frames (small example
below):
m1_1 m2_1 m3_1 m1_2 m2_2 m3_2
i1111222
i1211222
i2221222
For an arbitrary number of
On 11.01.2012 22:51 (UTC+1), Hasan Diwan wrote:
Trying to install Rjava on FreeBSD 9 and am getting the following error:
install.packages('rJava')
trying URL 'http://cran.cnr.Berkeley.edu/src/contrib/rJava_0.9-3.tar.gz'
Content type 'application/x-gzip' length 537153 bytes (524 Kb)
opened URL
2012/1/12 Uwe Ligges lig...@statistik.tu-dortmund.de:
On 10.01.2012 20:30, Antonio Rodriges wrote:
Hello,
Is it possible to use R on public server where each user has its own
restricted R session?
This entirely depends on the definition of restricted, otherwise the
answer is yes.
More
On Jan 11, 2012, at 5:16 PM, Rich Shepard wrote:
On Wed, 11 Jan 2012, David Winsemius wrote:
Then R will not find it. (Actually there will be no .RData file
until R
executes save.image() at the end of the session. R does not create
a fresh
.RData at the beginning of a session.)
David,
On 12/01/12 09:17, Michael wrote:
Hi all,
I am looking for a command for doing 2D filtering (rectangular or
Gaussian) in R...
I have looked at ksmooth, filter and convolve but they seem to be 1D...
Any thoughts?
Thanks a lot!
I'm not sure what you really need/want to do, but you might have
?loess ## in base R
does 2d filtering , though it's not a Gaussian one
-- Bert
On Wed, Jan 11, 2012 at 3:00 PM, Rolf Turner rolf.tur...@xtra.co.nz wrote:
On 12/01/12 09:17, Michael wrote:
Hi all,
I am looking for a command for doing 2D filtering (rectangular or
Gaussian) in R...
I have
Okay thanks guys!
I was actually looking for image processing libraries in R.
Specifically, I am looking for something like filter2d for
images(pixels)...
(speed is not a concern for me, since my images are really small, 200x200,
etc.)
And in fact, these are not images, these are 2d matrix
The Bioconductor list/repository will have lots of image processing stuff.
-- Bert
On Wed, Jan 11, 2012 at 3:21 PM, Michael comtech@gmail.com wrote:
Okay thanks guys!
I was actually looking for image processing libraries in R.
Specifically, I am looking for something like filter2d for
I looked the loess up...
But I am confused... what should be my formula if I just want to smooth
the numbers of my matrix x?
And those lots of parameters are daunting... what are the essential ones
that I should definitely set up?
I remember for 2d Gaussian filter, I just need to set one
Thanks a lot Bert!
Are z, y and x are of the same length?
And after the loess I just reshape the stacked outputs back into a 2d
matrix?
Thanks again!
On Wed, Jan 11, 2012 at 5:33 PM, Bert Gunter gunter.ber...@gene.com wrote:
You have to set the data up as 3 columns:
z = Values
y = row
Whilst the constrained proportion was 0 in the example below I am getting the
error in cases where this is not so. See new output pasted below
[1] ORDISTEP RDA1 BOTH WAYS
[1]
[1] SFW ALL Adult
[1]
Hi,
After building R 2.14.1 on a Linux system (SUSE Linux Enterprise Server
11 (x86_64) ), I ran make check but it halted with the foll error:
Testing examples for package âbaseâ
Error: testing 'base' failed
Execution halted
I looked in build dir/test/Examples/base-Ex.Rout.fail and found the
Dear all,
I have a problem while working with hourly data of fx rates. I've read from
a csv file, the following way:
csv-file like:
Date,Open,High,Low,Close,Volume
2011-08-11 03:00:00,1.41758,1.42205,1.41625,1.42174,8974
...
2011-08-12 04:00:00,1.42175,1.42413,1.42067,1.42172,7229
...
2011-12-30
Thanks Joshua,
That did it.
Cheers,
Ted
--
View this message in context:
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Sent from the R help mailing list archive at Nabble.com.
On Jan 11, 2012, at 6:21 PM, Michael wrote:
Okay thanks guys!
I was actually looking for image processing libraries in R.
Specifically, I am looking for something like filter2d for
images(pixels)...
(speed is not a concern for me, since my images are really small,
200x200,
etc.)
And in
Hi all,
I'd like to compare all levels of my interaction with each other. I read
the pdf 'Additional multcomp Examples' but even though there is an
example with an interaction it doesn't work for me when I want to
compare within and between groups.
Here is an example:
Hi all,
I was following the tutorial in:
http://www.rdatamining.com/examples/text-mining and using the package
twitteR i attempted to execute userTimeline and got the error:
rdmTweets-userTimeline(rdatamining,n=100)Error in .self$twFromJSON(out) :
Error: Rate limit exceeded. Clients may not
will this do it for you:
x - read.table(text =m1_1 m2_1 m3_1 m1_2 m2_2 m3_2
+111222
+ 211222
+ 221222, header = TRUE)
# split out the main names of the column
x.names - do.call(rbind, strsplit(names(x), _))
x.names
On 12-01-11 9:08 AM, gli wrote:
thanks Duncan. I think want my circle to be in user coordinates. I tried
the first code u gave me and it gives me a circle. but how can i:
1) change the radius ?
2) place the circle at a given x,y,z coordinate?
3) turn it 90 degree up like these circle plate
I have a list of bounds for a series of polygons. I do understand the
formula to determine whether point i is within polygon X (X[x1] i[x]
X[x2] i[x] X[y1] i[y] X[y2] i[y]), and I can apply this
throughout the dataset. However, this naive algorithm doesn't scale
very well. The data set
Hello,
I would like to please ask for assistance with aggregate sum. I have a data
set with consisting of two grouping variables (id, visit) and several other
variables. I would like to sum the variables for each id and visit, but am
having problems with na.rm. na.rm=TRUE seems to replace
Btw I tried this on the terminal in R and it worked, restarted Rstudio and
it still doesn't work there. Rstudio bug or something else?
Sachin
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R-help@r-project.org mailing list
Perhaps this would work:
spitzSum - function(x) if(all(is.na(x))) NA else sum(x, na.rm = TRUE)
Michael
On Wed, Jan 11, 2012 at 11:18 PM, Spitzer, Matthew
matthew.spit...@bmc.org wrote:
Hello,
I would like to please ask for assistance with aggregate sum. I have a data
set with consisting of
You should ask this on R-devel, and tell them exactly what compilers you
used. See the posting guide: this falls under
'Questions likely to prompt discussion unintelligible to non-programmers
should go to to R-devel.'
But yes, it is something to worry about and it looks as if your compiler
Dear all,
I run a kruskal wallis test and found significant results. Then, I conducted
all pairwise comparisons and found no significant results. Could anyone please
give me a hint as to why this happens or redirect me towards a specific web
page where I can find more info? (I used alpha=5%
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