Displaying 20 results from an estimated 1000 matches similar to: "sum column by colnames"
2012 Jan 11
1
R CMD check pkg and 32/64 bit.
R gurus:
I'm trying to get another round of rconifers out and I need some advice/help crushing differences in the examples test.
I'm trying to make sure the max sdi values are being respected.
I've added a tests/rconifers-Ex.Rout.save (from windows i386-pc-mingw32) and when I ran R CMD check (both R-2.13.0), I got the following results:
* using log directory
2013 Mar 18
4
Why stacking rasters return NAs?
I have several rasters that I want to do some calculations ,basically
calculating the moving average.
dir2 <- list.files("D:\\2010+2011", "*.bin", full.names = TRUE)
saf=stack(dir2)
movi <- overlay(stack(saf),fun=function(x) movingFun(x, fun=mean,
n=3, na.rm=TRUE))
Error in .overlayList(x, fun = fun, filename = filename,
2001 Feb 08
2
dnbinom(,size<1,)=0 (PR#842)
This came up on r-help but indicates a bug.
dnbinom(x,n,p) calls dbinom_raw(n-1,...)
which returns 0 for n<1.
-thomas
---------- Forwarded message ----------
Date: Thu, 08 Feb 2001 17:10:23 +0000
From: Yudi Pawitan <yudi@stat.ucc.ie>
To: Mark Myatt <mark@myatt.demon.co.uk>
Cc: R-Help <r-help@stat.math.ethz.ch>
Subject: Re: [R] Goodness of fit to Poisson / NegBinomial
2003 Sep 25
1
apply on a 4D array
I am trying to multiply a 3D array of 4x4x4 by the 4 3D arrays of a 4D array
with dimensions 4x4x4x4 (the last dimension being the one that I want to
split by).
(4x4x4 array)
> hiaAry
, , a1
i1 i2 i3 i4
h1 9.5936098 6.001040 0.08772 0.3138600
h2 1.2003500 1.454570 2.79248 0.0000000
h3 0.1346500 0.201220 0.39256 0.5464000
h4 0.0109000 0.012270 0.16417 0.2766900
,
2005 Apr 20
1
make check failure -- R 2.1.0 Windows XP SP2
I compiled R 2.1.0 under Windows XP SP2 as a preliminary to rebuilding a
custom package for use with R 2.1.0. The compile completed successfully,
and I was able to run demo(graphics) successfully. But make check and
make check-recommended fail.
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 1.0
year 2005
2005 Jan 31
2
coercing a list to a data frame, lists in foreloops
I have a set of time-series climate data with missing entries. I need to add
rows for these missing entries to this data set. The only way I know to do
this is unsing a foreloop, but this won't work on a list. I've tried to
convert the list to a data frame, but that won't happen, either.
I want to fill rows in this table:
> newtest[10:15,]
yrmos yearmo snow.sum snow.mean
2005 May 24
0
output of mars() in package mda; how do I read the pairwise interaction terms from the output?
Hi,
I have run mars() with the default degree=1, and have constructed
splines which are similar to what I would get from Salford System's
MARS. I then use these splines as potential predictors, along with
rpart( ) terminal nodes and other potential predictors, in logistic
regression in SAS. The output of mars() and the splines I created are
shown below (pardon the lengthy output):
>
2012 Apr 09
1
Pairwise comparison matrix elements
Hi!,
I'm really hoping someone out there will be able to help me.
I recently started my MSc dissertation on Population Projection Matrices, which has been going well until now. I am trying to set-up a general script that does a pairwise comparison of all elements in my matrices.
So for example, given that I have the following matrix S:
> S
[,1] [,2] [,3]
[1,]
2008 Jun 19
3
colnames of a column
Hi,
With this data.frame:
> class(rwl)
[1] "data.frame"
>rwl
0028002F 0028013F 0028032F
1833 3.39 NA NA
1834 3.09 NA NA
1835 3.05 NA NA
1836 3.31 NA NA
1837 2.26 NA NA
> colnames(rwl)
[1] "0028002F" "0028013F" "0028032F"
Ok....
> colnames(rwl[,1])
NULL
why??
2012 Apr 26
2
Memoize and vectorize a custom function
My goal is simple: calcuate GC content of each sequence in a list of
nucleotide
sequences. I have figured out how to vectorize, but all my attempts at
memoization failed.
Can you show me how to properly memoize my function?
There is a StackOverflow post on the subject of memoization, but it does not
help me:
http://stackoverflow.com/questions/7262485/options-for-caching-memoization-hashing-in-r
2009 Nov 12
0
QR-decomposition using the base package vs. Matrix package
I need to perform a QR-decomposition of a sparse matrix, so I've been
trying to use the Matrix package. Unfortunately I don't seem to be getting
exactly the same results as if I had used the qr() command from the base
package. Here is an example of what I'm doing.
> spdata <-rpois(50,1)
> y <- rnorm(10,0,1)
> S <-
2003 Nov 30
1
bad performance on 2.4.23
hi,
- big and ugly mail. If you don't like them, delete it now :-) -
I have collected and classified some information of:
http://home.earthlink.net/~rwhron/kernel/bigbox.html
And I observed that ext3 performance is worse than previous
kernels(2.4.19...). -ac and -aa are here only as reference.
Complete information is in the upper URL.
dbench: Performance is worse.
dbench (Numbers are in
2003 Nov 23
6
RxFax
I am also having problems receiving my first fax. I get a 320byte file (for a
4 page fax). If I look a the tiff generated, is just has some few dots.
I am sending the fax from a notebook with Windows XP to an X100P and using
libtiff v3.5.7.
Has anyone successfully received faxes ?
Output to the console as follows:
Changed from phase 0 to 1
> Start receiving document
> Changed from
2010 Jun 24
1
help in SVM
HI, GUYS,
I used the following codes to run SVM and get prediction on new data set hh.
dim(all_h)
[1] 2034 24
dim(hh) # it contains all the variables besides the variables in all_h
data set.
[1] 640 415
require(e1071)
svm.tune<-tune(svm, as.factor(out) ~ ., data=all_h,
ranges=list(gamma=2^(-5:5), cost=2^(-5:5)))# find the best parameters.
bestg<-svm.tune$best.parameters[[1]]
2010 May 28
2
problem with a function
Hi all,
I have a function rho.f which gives a list of estimators. I have the
following problems.
rho.f(0.3) gives me the right answer. However, if I use rho.f(corr[4]) give
me a different
answer, even though corr[4]==0.3.
This prevents me from using a for loop. Can someone give me some help?
Thank you very much in advance.
Hannah
>
2003 Oct 28
1
Software FAX Modem--One Last Request For Help
Here's one last plea for help from the list before I give up on the totally
cool software FAX modem concept in complete despair (for now, at least,
until I have more time to dig into it)....
I am simply not able to successfully receive a FAX no matter what device I
transmit from or how I bring the call into Asterisk. My lastest effort was
a call from a Pitney-Bowes FAX machine into an X100P
2010 Jul 14
1
Entropy of a Markov chain
Does anyone have any "R" code for computing the entropy of a simple
first or second order Markov chain, given a transition matrix something
like the following (or the symbol vector from which it is computed)?
AGRe ARIe CSRe DIRe DSCe eos
HRMe SPTe TOBe
AGRe 0.0000000 0.0000000 0.0000000 0.0000000 1.0000000 0.0000000
0.0000000 0.0000000
2013 Mar 14
1
ggplot2 problem
Hello all!
I have a problem with ggplot2 library. I want to do an heat map and the y
variables are the year months. If I use the following code, he y values are
in alphabetical order, but I want it in month order.
The code is:
library(reshape)
library(ggplot2)
library(scales)
p <- ggplot(data.m, aes(variable, Month)) + geom_tile(aes(fill = value),
2007 Nov 24
5
how to calculate the return?
Hi, R-users,
data is a matrix like this
AMR BS GE HR MO UK SP500
1974 -0.3505 -0.1154 -0.4246 -0.2107 -0.0758 0.2331 -0.2647
1975 0.7083 0.2472 0.3719 0.2227 0.0213 0.3569 0.3720
1976 0.7329 0.3665 0.2550 0.5815 0.1276 0.0781 0.2384
1977 -0.2034 -0.4271 -0.0490 -0.0938 0.0712 -0.2721 -0.0718
1978 0.1663 -0.0452 -0.0573 0.2751 0.1372 -0.1346
2012 Oct 15
3
Referring to matrix elements by name, iteratively
#Here is a vector of IDs
> cwaves
[1] 86 90 185 196 197 209 210 215 216 217 218
#Here is a matrix. The rows and columns correspond to the IDs in cwaves, and
the matrix is populated with a coefficient
> mat
86 90 185 196 209 210 215 216 217 218
86 0 0 0 0 0 0.00000 0 0.000000 0.000000 0.000000
90 0 0 0 0 0 0.00000 0