Hello,
I am performing Latin Hypercube sampling from functions "makeParamSet" and
"generateDesign" (package "ParamHelpers") in R. Using the function
"makeParamSet", how can I specify a formula to define a given parameter ? Here
is an example where "g� is the product of �a� and �c�:
ps <-
Hello,
I have a input data frame with multiple rows. For each row, I want to apply a
function. The input data frame has 1,000,000+ rows. How can I speed up my code
? I would like to keep the function "func".
Here is a reproducible example with a simple function:
library(tictoc)
Hello,
How can I round down numeric values with decimals? For example,
> signif(3.896037e+09, digits = 1)
[1] 4e+09
The expected result is 3e+09 (and not 4e+09).
> signif(8.68542378e-10, digits = 1)
[1] 9e-10
The expected result is 8e-10 (and not 9e-10).
Thank you very much for
a vector rather than to
permute a vector ?
Many thanks for your time.
Have a nice day
Nell
De : Jim Lemon
Envoyé : mardi 10 juillet 2018 17:44:13
À : Nelly Reduan
Objet : Re: [R] Generate N random numbers with a given probability and condition
Hi Nell,
I may
integers
that sum to M and the integers would be selected from a uniform distribution.
Many thanks for your time
Nell
De : Rolf Turner
Envoyé : mercredi 4 juillet 2018 16:11:11
À : Nelly Reduan
Cc : r-help@r-project.org
Objet : Re: [R] Generate N random
Dear all,
I would like to generate N random numbers with a given probability and
condition but I'm not sure how to do this.
For example, I have N = 20 and the vector from which to choose is seq(0, 10,
1). I have tested:
x <- sample(seq(0, 10, 1), 20, replace=TRUE, prob=rep(0.28,
Nelly Reduan a partag� un fichier OneDrive avec vous. Pour l�afficher, cliquez
sur le lien ci-dessous.
<https://1drv.ms/u/s!Apkg2VlgfYyDgRAeVIM0nEajx0Fb>
[https://r1.res.office365.com/owa/prem/images/dc-png_20.png]<https://1drv.ms/u/s!Apkg2VlgfYyDgRAeVIM0nEajx0Fb>
Screensho
<- strtoi(set[index])
> print(set[10,1]) ## Problem: must be numeric
[1] "1"
Thanks very much for your help.
Nell
De : Jim Lemon <drjimle...@gmail.com>
Envoy� : mercredi 30 ao�t 2017 15:00:32
� : Nelly Reduan; r-help mailing list
Objet
via OneDrive
Thanks very much for your help.
Nell
De : David Winsemius <dwinsem...@comcast.net>
Envoy� : mercredi 30 ao�t 2017 12:59:57
� : Nelly Reduan
Cc : r-help@r-project.org
Objet : Re: [R] Converting character to numeric using the package "XLConnect"
Hello,
>From an Excel file imported into R where each cell contains characters, I
>would like to convert some characters to numeric. However, my code doesn’t
>work. When I write data to worksheets in an Excel file, some numbers in the
>cells are stored as text (instead of numeric). Here is my
ledLHS)
Sorry, it’s the first time that I perform a sensitivity analysis using the LHS.
Thank you very much for your time.
Have a nice day
Nell
De : Rob C <bertcarn...@gmail.com>
Envoyé : mardi 30 mai 2017 16:26:08
À : Nelly Reduan
Cc : r-help@r
; de la part de Rob C
<bertcarn...@gmail.com>
Envoyé : samedi 27 mai 2017 13:32:23
À : r-help@r-project.org
Objet : Re: [R] Latin Hypercube Sampling when parameters are defined according
to specific probability distributions
>May 26, 2017; 11:41am Nelly Reduan Latin Hypercube Sampling
Hello,
I would like to perform a sensitivity analysis using a Latin Hypercube
Sampling (LHS).
Among the input parameters in the model, I have a parameter �dispersal
distance� which is defined according to an exponential probability distribution.
In the model, the user thus sets a default
script ?
Thanks a lot for your time.
Have a nice day
Nell
De : Robert Baer <rb...@atsu.edu>
Envoy� : samedi 19 novembre 2016 16:05:13
� : David Winsemius; Nelly Reduan
Cc : r-help@r-project.org
Objet : Re: [R] Run a Python code from R
>From http
Hello,
I built a Generalized Additive Model (GAM) using a negative binomial
distribution (my response variable represents an animal count). In the GAM, I
included the log(trapping effort) as an offset variable to account for
variations in the sampling effort across trapping sites. Trapping
1],
[ 0.41534291, 0.41333479, 0.48118995, ..., 0.19203674,
0.04192771, 0.03679473],
[ 0.5188
Nell
________
De : Wensui Liu <liuwen...@gmail.com>
Envoy� : mercredi 16 novembre 2016 16:00:03
� : Nelly Reduan
Cc : r-help@r-project
Hello,
How can I run this Python code from R ?
>>> import nlmpy
>>> nlm = nlmpy.mpd(nRow=50, nCol=50, h=0.75)
>>> nlmpy.exportASCIIGrid("raster.asc", nlm)
Nlmpy is a Python package to build neutral landscape models
https://pypi.python.org/pypi/nlmpy . The example comes from this website. I
Hello,
I have some problems to sort a large data table. In particular, I would like to
sort a data table in such a way that the duplicated values in two columns are
disposed one below the other and if possible in an ascending order (especially
for the column "Date"). An example with a short
Envoy� : jeudi 4 ao�t 2016 08:45:01
� : Nelly Reduan
Cc : r-help@r-project.org
Objet : Re: [R] Error code 100 when using the function �fitdist� from the
fitdistrplus package
> On Aug 3, 2016, at 4:42 PM, Nelly Reduan <nell.r...@hotmail.fr> wrote:
>
> Nelly Reduan has shared On
Nelly Reduan has shared OneDrive?files with you. To view them, click the link
or image below.
<https://1drv.ms/u/s!Apkg2VlgfYyDgQo8BnoB_Ds4KXgR>
[https://bzmvxw.by3301.livefilesto
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