Re: [R] if within a function

-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch

Re: [R] merging dataframes with diffent rownumbers

-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

Re: [R] Problem with binding data-frames

. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org

Re: [R] Optimization

optimization. Could anyone give me some advice? -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

Re: [R] the way to look at all the codings of any functions

-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles

Re: [R] problems with matrix, list and other..

] -1.0892216 -0.7304947 -1.2883680 d[2]%*%t(e[2]) this is the error: requires numeric matrix/vector arguments i've tried to coerce e to a matrix, but it's doesn't work... in the end.. i'd like this: for (i in (1:1096)) {solve(d[i])*t(e[i])} help me, please :) Vincenzo -- Petr Klasterecky

Re: [R] Loop for test statistic

advice as it does not work. Many thanks. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

Re: [R] Grahpics problem

-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

Re: [R] extractor rows from a matrix

advice you got here. Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http

Re: [R] extractor rows from a matrix

5 d[2]= 458 ... i'm trying now with this: for(i in 1:1096) d[i]=(rbind(ht[i,])) but it doesn't work :( it works with function like mean,sum.. but not with rbind what can i do? /---Messaggio originale---/ /*Da:*/ Petr Klasterecky mailto:[EMAIL PROTECTED

Re: [R] Removing Inf and Inf values from a fata frame

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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] logit model interpretation

degrees of freedom Residual deviance: 996.02 on 1424 degrees of freedom AIC: 1004 Number of Fisher Scoring iterations: 5 Thanks Vioelta -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] getting t.test to work with apply()

read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help

Re: [R] functions without arguments

]] __ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky

Re: [R] an array of matrices

__ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles

Re: [R] Goodness-of-fit test for gamma distribution?

. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting

Re: [R] Filled step-function?

://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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] creating different strata

the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help

Re: [R] Filled step-function?

(variable1,variable2,type=s,main=Title,ylim=c(120,0),xlim=c(0,10)) For each .csv-dataset I want to use this code with only slight adjustments... Tanks again, Beate Petr Klasterecky schrieb: Hi, I am not sure what exactly you would like to fill up and how, but take a look at ?polygon

Re: [R] Batch

-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https

Re: [R] creating a list of 3 dataframes from a list of 2 dataframes and a dataframe?

__ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability

Re: [R] apply( )

. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting

Re: [R] How to read several text files at once!

, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R

Re: [R] Filling array: No recycling

code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org

Re: [R] missing package

/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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

[R] length of the object is not a multiple of... [was: Re: hello]

example. Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org

Re: [R] Survival statistics--displaying multiple plots

__ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability

Re: [R] weight

) where it is bolded, i'm getting the following error: Error in mysubset2[, 2:5] : incorrect number of dimensions snip -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing

Re: [R] how to code the censor variable for survfit

://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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] Scatter Plot in R - Help

If I understand correctly what A. Ezhil asked for, polygons won't help here. For coloring the individual points check ?points and use subsets, e.g. plot(x,y) points(x[xy-1],y[xy-1], col=red) or something similar. Petr John Kane napsal(a): Here is a recent posting by Petr Klasterecky

Re: [R] Extract p-value from survdiff function

-- A. GoralczykGöttingen, Ger. [EMAIL PROTECTED] mailing listhttps://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics

Re: [R] Extracting values from an array

a simple, efficient way to do this in R? Thanks. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] correlation table

://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list

Re: [R] RE : for loops

guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch

[R] print format - fixed number of digits

format(x,digits=5,scientific=FALSE) V1 V2 1 0.0026408 -0.0023358 2 -0.0039601 0.0103731 3 -0.0070793 -0.0057927 -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help

Re: [R] creating random numbers

/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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] Keeping data after upgrading R to a new version [was: A very simple question]

read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help

Re: [R] Changing working directory

and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r

Re: [R] residuals and predict

and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help

Re: [R] Histograms of lots of variables

guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing

Re: [R] Please help.... i know its trivial

have been something like 'wrong row names in subset' or 'dataframe subset question' etc, certainly not 'please help me, it's trivial'... Btw, there is something like the posting guide for this list (see footer). Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University

Re: [R] background color

deleted]] __ R-help@stat.math.ethz.ch 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. -- Petr

[R] session log

found this thread from 2003(!) related to this topic: http://finzi.psych.upenn.edu/R/Rhelp02a/archive/13971.html however I am using R on MS Windows - no |tee, no ESS... Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] session log

. NT emacs is available at ftp://ftp.gnu.org/pub/gnu/emacs/windows download emacs-21.3-fullbin-i386.tar.gz ESS is available at http://ess.r-project.org Click source and then right-click ess-5.3.3.zip -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague

Re: [R] Reading user input

/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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] Newbie: Simple loops: complex troubles

if i am going about this loop stuff a rely round about way - Any help would make me much less loopy:Pthanks -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing

Re: [R] Device drivers - png()/jpeg()

http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing

Re: [R] Why does lmList() fail when lm() doesn't?

@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague

Re: [R] Doing partial-f test for stepwise regression

-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] RV: By sentence

@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University

Re: [R] Listing function

, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

Re: [R] Subset

]] __ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept

Re: [R] Trimming a Data Set

]] __ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability

Re: [R] Adding bars to the right of existing ones using barplot

__ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability

Re: [R] MCMC logit

. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting

Re: [R] Export successively displayed graphics

. Moreover, the frontend I am using for R (RkWard) does not enable me to export graphs as vectorial image files. How can I export such graphs as separate (e.g.) Postscript files ? par(ask=FALSE) didn't help. Thank you for your answer. -- Petr Klasterecky Dept. of Probability and Statistics

Re: [R] recoding question

. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting

Re: [R] understanding print.summary.lm and perhaps print/show in general

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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] Reg. strings and numeric data in matrix.

] __ R-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability

Re: [R] read a irregular text file data into dataframe()

0004 0010 0055 0010 0042 0061 0080 0010 0017 0078 0084 0006 0010 0040 0042 0075 0080 0005 0028 0032 0006 0010 0040 0061 -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch

Re: [R] Calculating confidence limits on acf graphs

, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] Download packages problem.

software is correct, but my server required authentication for use it, and for load a new package directly from R it is not possible. Is there a code or process for server authentication (put my login and password) in R for download directly the packages? The best regards, -- Petr Klasterecky

Re: [R] hwo can i get a vector that...

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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] Generate random numbers up to one

make them add-up to 1: x - rnorm(100) #runif(100), rpois(100) etc. x - x/sum(x) sum(x) Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch

Re: [R] Generate random numbers up to one

Barry Rowlingson napsal(a): Petr Klasterecky wrote: You need to specify what 'random' means. If you have any numbers, you can always make them add-up to 1: x - rnorm(100) #runif(100), rpois(100) etc. x - x/sum(x) sum(x) I see a slight problem that may occur with dividing by sum(x

Re: [R] how to edit my R codes into a efficient way

of dataframes and using lapply() on that list rather than processing the data inside the loop. Petr Xuhong -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https

Re: [R] Recalling and printing multiple graphs. Is there something in the HISTORY menu that will help?

John Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics Baltimore VA Medical Center GRECC, University of Maryland School of Medicine Claude D. Pepper OAIC, University of Maryland Clinical Nutrition Research Unit, and Baltimore VA Center Stroke of Excellence -- Petr Klasterecky Dept

Re: [R] Question about the smooth.Pspline

-help@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles

Re: [R] Waiting for Key input

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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech

Re: [R] 0 * NA = NA

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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Re: [R] error message when using outer function

-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https

Re: [R] R (Input from Keyboard): How do I remove error?

execute my script in two parts: First part: : : cat(\n,Enter value:: ,\n) y-scan(n=1) and second part: a - b*y cat(\n,Enter new value::,\n) y-scan(n=1) : : Any help will be greatly appreciated. -- Petr Klasterecky Dept. of Probability and Statistics Charles University

Re: [R] How to read in this data format?

-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r

Re: [R] Row-wise two sample T-test on subsets of a matrix

. __ R-help@stat.math.ethz.ch 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. -- Petr

Re: [R] Default par() options

@stat.math.ethz.ch 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University

Re: [R] matrix manipulations

Anup -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org

Re: [R] Multiple conditional without if

read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help

Re: [R] how to fill between 2 stair plots

-help@stat.math.ethz.ch 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. ?polygon might be useful. See also demo(graphics) Petr -- Petr

Re: [R] Chi Square with two tab-delimited text files

to use. I'd guess a goodness of fit test, but who knows? See ?chisq.test and the examples given there. It also tells you that the y-argument is ignored if x is a matrix (that's probably the reason why you get different results using read.table and scan). Petr -- Petr Klasterecky Dept

Re: [R] recovering collums of DF using a text var.list

in var.list) { plot(density(df[[paste(myvar)]]), main=paste('Density of',myvar)) } It may not be bad idea to make a structure (list, dataframe) consisting of only those variables you want and use some variant of apply() instead of the for-loop. See ?apply, ?tapply, ?sapply Petr -- Petr Klasterecky

[R] optim(method=L-BFGS-B) abnormal termination

to attempt such minimization? (Suppose I have good starting values.) Thaks, Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

Re: [R] applying lm on an array of observations with common design matrix

of the coefficients? Sure: lapply(summary(fit), function(x) {$(x,cov.unscaled)}) Add indexing if you do not want the whole matrix. You can extract whatever you want, just take a look at ?summary.lm, section Value. Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague

Re: [R] Working with temporal data

(your.variable[day==20070101]) if 'day' contains the date stored as an integer. If you want to do this for all days probably you mmight use a loop through unique(day) Finally, to do a monthly/yearly analysis, just create 'month' and 'year' month - trunc(day/100) year - trunc(day/1) HTH Petr Klasterecky