Re: [R] A %nin% operator?

See Harrell's Hmisc package -- David Huffer, Ph.D. Deputy Director CSOSA/ORE Washington, DC -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Ken Williams Sent: Thursday, August 05, 2010 11:20 AM To: r-help@r-project.org Subject

Re: [R] write file to date-stamped folder

How about: test.table - matrix ( rnorm ( 25 ) , ncol = 5 ) outputDir = paste ( + getwd ( ) + , /OutputData- + , Sys.Date ( ) + , sep = + ) dir.create ( outputDir ) write.table ( + test.table + , paste ( + outputDir + , test.table.txt + , sep = / + ) + , sep = \t +

Re: [R] changing equal values on matrix by same random number

  - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov - -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun

Re: [R] changing equal values on matrix by same random number

, max = max ) } x } milton ( x = mymat ) -- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov

[R] Adding logical vectors

When adding several logical vectors I expect each vector will be coerced to integers and these vectors will then be added. That doesn't always seem to be the case. For example: ( f1 - as.factor ( sample ( x , 25 , rep = T ) ) ) [1] x x x x x x x x x x x x x x x x x x x x x x x x x

Re: [R] if confusion

  - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov - -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of rkevinbur

Re: [R] time difference

-- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r

Re: [R] assign question

How about: sapply ( 1:27 , function ( i ) { min ( get ( paste ( sa , i , sep = ) ) ) } ) See ?get david -- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC

Re: [R] Finding missing elements by comparing vectors

Or... X = c (red, blue, green, black ) ; Y = c(red, blue, green, magenta, cyan) unique ( c ( X [X %in% Y] , Y [Y %in% X] ) ) [1] red blue green David -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Praveen Surendran

Re: [R] Problems with lists...

Like, a = list (1:3,4:6,7:9) a [[1]] [1] 1 2 3 [[2]] [1] 4 5 6 [[3]] [1] 7 8 9 a [[2]] [2] [1] 5 a [[3]] [3] [1] 9 HTH -- David -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of voidobscura Sent: Thursday, July 16, 2009

Re: [R] DataFrame help

The easiest way is to just do something like this: mdat - matrix(c(4,2,3, 11,12,13), nrow = 2, ncol=3) mdat [,1] [,2] [,3] [1,]43 12 [2,]2 11 13 as.vector ( colSums ( mdat ) ) [1] 6 14 25 HTH -- David -Original Message- From: r-help-boun...@r-project.org

Re: [R] Transformation of data!

I'm guessing you want to perform some sort of transformation on all the elements in the matrix you've posted and that you've only presented those 3 elements as an example of how the transformation will affect those 3 elements. Is that right? -- David -Original Message- From:

Re: [R] problem with merging matrices

) what goes in the bottom corner of the new matrix? I would have guessed i would have seen 2 7 1 8 in the corner. Was that a typo or do you really want to overwrite the values of the submatrix that *is* in A1? david -- David   - David

Re: [R] problem with merging matrices

] On Behalf Of David Huffer Sent: Wednesday, July 15, 2009 11:07 AM To: jurgen claesen; r-help@r-project.org Subject: Re: [R] problem with merging matrices On Wednesday, July 15, 2009 8:28 AM, jurgen claesen wrote: ...I'm a relative new user of R and I have a problem with merging a collection

Re: [R] Formatting a Table

0.729 0.857 [5,] 10 0.306 0.385 0.477 0.583 0.705 0.843 Im not really sure what you mean by Line up the first row with the factors (decimal fractions). -- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington

Re: [R] error: no such index at level 2

[[2]] [1] 1 1 1 [[3]] [1] 3 3 1 length ( q [ crossRsorted [ , 1 ] ] ) [1] 3 How'd you come up with length(q) [1] 165 length(q[ crossRsorted[,1] ]) [1] 15750 I must be missing something. -- David   - David Huffer

Re: [R] matching each row

N in y 3 3 1 5 1 3 7 2 1 9 1 1 -- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov

Re: [R] how to count number of elements in a vector that are not NA ?

How about countN - function ( v ) { sum ( !is.na ( v ) ) - sum ( is.na ( v ) ) } -- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov

Re: [R] how to count number of elements in a vector that are not NA ?

way is not wrong... -- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov __ R-help@r-project.org mailing list https://stat.ethz.ch

[R] Sweave: multiline Sexpr?

Is there any way to have Sexpr span multiple lines? -- David   - David Huffer, Ph.D. Senior Statistician CSOSA/Washington, DC david.huf...@csosa.gov

Re: [R] Sweave: multiline Sexpr?

like the way to go, but it seems not to take full advantage of the language. Thank you both. David -Original Message- From: Duncan Murdoch [mailto:murd...@stats.uwo.ca] Sent: Tuesday, June 30, 2009 1:16 PM To: David Huffer Cc: r-help@r-project.org Subject: Re: [R] Sweave: multiline

Re: [R] SAS Macro Variable in R

=2009g=dignore=.csv , sep = ) destfile - paste ( destpath , substitute ( symbol ) , .csv , sep = ) download.file ( url , destfile , quiet = TRUE ) } download.ichart ( TEF ) -- David   - David Huffer, Ph.D

Re: [R] IP-Address

, 169.131.58.2 , 162.131.58.6 , 169.132.58.3 , 162.132.58.20 , 250.131.58.4 , 162.252.20.21 , 250.131.58.5 , 162.254.20.22 , 250.131.58.7 ) ) test HTH -- David   - David Huffer, Ph.D. Senior

Re: [R] by-group processing

On Thursday, May 07, 2009 7:45 PM, David Freedman wrote: ...how about: d=data[order(data$ID,-data$Type),] d[!duplicated(d$ID),] Does the -data$Type argument to the order function work? -- David   - David Huffer, Ph.D

Re: [R] read SAS file

Do you have the foreign package loaded? -- David __ 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,

[R] Repository missing hmisc

I'm trying to install the Hmisc package, however it doesn't appear in the list after utils:::menuInstallPkgs(). Any help? -- David __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

Re: [R] replicating dataframe rows

On Monday, September 29, 2008 1:59, Dimitris Rizopoulos wrote: On Monday, September 29, 2008 1:26, milton ruser wrote: ...I have a data.frame like... place-c(place1, place2, place3, place4, place5) population-c(100,200,300,50,30) my.df-data.frame(cbind(place,population))

[R] Most common level of a factor by

I'm looking for something along the lines of which ( table ( x ) == max ( table ( x ) ) ) to find the most common level of one factor by several other factors. For instance, I've got X - data.frame ( + x = factor ( sample ( c ( A , B , C , D ) , 20 , r = T ) ) + , z1 = factor (

[R] Rpart description of tree groups

I'm making a few functions to generate latex files describing rpart objects that are then \input-ed into a larger document. So far, the functions I have generate paragraphs containing enumerations of the predictors in pruned trees and the number of formed groups. Its easy enough to recover these.