similar to: gsub

I want to be able to exctract a matrix from a data frame that contains repeated measurements for individuals. i.e I want to exctract the second observation for each individual in the study. Is there a way of doing this? I guess what I am trying to ask is if there as a multidimensional version of aggregate() as in aggregate(data, list(data[,"ID"]), function(x) x[2,]) but aggregate will

Dear all, I am interested in finding out how to change the names of coefficients in the lm function. I have a design matrix which I called "design" where each variate has its own name. However when I issue the command: lm.1<-lm(response~design-1, weights=some.weights) and follow it with: summary(lm.1) it seems to paste as a character the names of the variates with design i.e I

Dear R users, I am trying to install R 1.7.1 on a sparc-sun-solaris2.8 system. although gnu readline is installed and works fine on the parent directory, R is not recognizing it. I get the following in the config.log file. configure:11627: checking for rl_callback_read_char in -lreadline configure:11658: gcc -o conftest -g -O2 -L/usr/local/lib conftest.c -lreadline -ldl -ltermcap -lm

Dear list, I try to update the prabclus package. R CMD check works nicely, no warnings, good results in all tests. However, building the package fails: ginkgo:/disk5/home/chrish/RAusw/libsrc R CMD build prabclus * checking for file 'prabclus/DESCRIPTION' ... OK * preparing 'prabclus': * checking whether 'INDEX' is up-to-date ... OK * removing junk files * building

Hi, Is there a function that does percentile-percentile plot. I do not mean the qqplot. I need to plot the percentiles rather than points themselves. I am hoping for a plot that tells me that the x percentile of one data set corresponds to the y percentile of the other. for example a point on the plot of (.5, .2) will tell me that the 50th percentile of the first data and the 20th percentile of

Hi all, hope you having a nice day, I ahve this weird results with identical (probably I am not understanding correctly what it does ...) I have these two data frames and I issue : > identical(temp, temp1) [1] FALSE However, these data frames are Nx2 and when I issue: > identical(temp[,2], temp1[,2]) [1] TRUE > identical(temp[,1], temp1[,1]) [1] TRUE and the results from str >

Hi AlL, I ahve this problem that my objective function is discontinous in the paramaters and I need to use methods such as nelder-mead to get around this. My question is: How do i compute standard errors to a problem that does not have a gradient? Any literature on this is greatly appreciated. Jean,

Is there a dataload utility for linux. The link in genstat is down but I managed to find the utility at: http://gurukul.ucc.american.edu/econ/gaussres/UTILITYS/DATALOAD.HTM but this is a dos/windows version. Thank you Jean

Dear All, I have the following data.frame `data.frame': 1563 obs. of 4 variables: $ Model :Class 'AsIs' chr [1:40] "Astro" "Astro" "Astro" "Astro" $ Make :Class 'AsIs' chr [1:40] "Chevrolet" "Chevrolet" $ Production : num 11219 12384 1082 5409 5458 ... $ date :`POSIXlt', format: chr

I have this awkward problem with trellis (lattice). I am trying to generate some plots through loops but the .eps file is empty. When I generate them in a list and print them outside the loop all is fine. this is an example below:( nothing shows up in foo.eps, but all show up in foo1.eps) R vesion 2.0.1, lattice version 0.10-16, on a debian 2.6.8-1 kernel. X <- data.frame(x=rnorm(10000),

Dear list, I have been struggling for some time now with this code... I have this vector of unique ID "EID" of length 821 extracted from one of my dataframe (skate). It looks like this: > head(skate$EID) [1] "896-19" "895-8" "899-1" "899-5" "899-8" "895-7" I would like to remove the complete rows in another dataframe

Dear R-users -- I'm using R 1.3.0 on a PC running SuSE Linux 7.1. I'm confused by the following behavior from the gsub() function. Am I doing something wrong? ## A string of characters > string<-c("q","w","e","(",")","q","w","e") ## Use gsub to replace `q' with `A' >

Full_Name: Jerome Asselin Version: 1.5.1 OS: linux redhat 7.2 Submission from: (NULL) (142.103.173.179) gsub() return different answers depending on how the input variables were created. Here is an example of code that replicates the problem. The vectors y and yy appear to be the same, but gsub() doesn't return the same answer. It should remove all the blanks when I use the vector y, but it

Dear list, I have this dataframe: > names(events) [1] "EID" "X" "Y" "trip" "tow" "catch" "effort" "depth" [9] "season" Where some of my unique ID "EID" appears more than once in 162 cases. > length(events$EID)-length(unique(events$EID)) [1] 162 I would like to combined

Hi, I would like to substitute a semicolon with two double quotation marks and a comma inbetween. It suppose to look like that: I have: FBpp0070086;FBpp0099643;FBpp0112915 I would like to have: "FBpp0070086","FBpp0099643","FBpp0112915" I tried with various numbers of backslashes, but noe have worked. for example: gsub(";", "\\\",\"",

Dear helpers, I'm trying to replace a character with a unicode code inside a data frame using gsub(), but unsuccessfully. > data.frame(animals=c("dog","wolf","cat"))->my.data > gsub("o","\u0254",my.data$animals)->my.data$animals > my.data$animals [1] "d??g" "w??lf" "cat" It's not that a data

R Version 1.9.1 (2004-06-21) Mac OS X.3.5 Dual 2GHz PowerPC G5 GUI = "AQUA" I have a data.frame comprising percentiles with the column headings containing % characters, e.g. > (pp <- colnames(temp2)) [1] "5%" "10%" "25%" "50%" "75%" "90%" "95%" I use xtable to convert the data.frame to Latex but I want to

| Confirmed for R-devel (current) on Ubuntu 17.10. But ... isn't the regexp | you use wrong, ie isn't R-devel giving the correct answer? No, I don't think R-devel is correct (or at least consistent with the documentation). My interpretation of gsub("(\\w)", "\\U\\1", entry, perl = TRUE) is "Take every word character and replace it with itself, converted to

I am trying this: I want to replace all the text in between java comments: /* start */ replace this text here /* end */ I''m trying: text.gsub(//* start */(.*)/* end *//im, replace_with) But i''m getting errors relating to expecting keyword_end. How should I be escaping /* and */ ? Also, does string interpolation work in gsub regex? Say I had variables like: start_tag =

Hello. I'd like to be able to print variable strings which contain "\" as-is, without interpreting (for example) "abcde\nuvxyz" as having an embedded newline (or whatever other escaped instruction). To do this, I've tried gsub, and here's some of my output (I've tried all kinds of variations to the arguments): >