[R] Coercing Output from mget() into Proper Data Frame
Sarah Goslee
sarah.goslee at gmail.com
Thu Jun 9 22:11:40 CEST 2011
That's not enough information for us to be able to help you, since
there's no reproducible code.
Here's the crucial bit:
> stem_freqs_list <- mget(uniq_stems,stem_dict)
> stem_freqs <- do.call(rbind,stem_freqs_list)
What does stem_freqs_list look like?
What does stem_freqs look like?
dim() and str() would both be helpful here.
Sarah
On Thu, Jun 9, 2011 at 3:48 PM, <ntyson at clovermail.net> wrote:
> Hello R-philes:
>
> I have the following function that gets the output of mget() and converts it
> to a data frame to return. What I am finding is that the dimensions are
> wrong. Basically, I get:
>
> bridesmaid wed u see m gt lt like love X.0 dress pagetrack one go X3 get
> 1 56 35 27 30 24 20 20 23 28 17 25 16 16 28 15 26
>
> Instead, I want something like:
>
> [1] bridesmaid 56
>
> In other words, I want the word in the first column and the frequency in the
> second column.
>
> Any help would be very much appreciated.
>
> Regards,
>
> Na'im
>
> library(Rstem)
>
> # make a data frame of stems and their frequencies
> stem_freq_list <- function(freqFile) {
> stem_dict <- new.env(parent=emptyenv(), hash=TRUE)
> freq_dist <- read.csv(freqFile,header=TRUE)
> words <- as.character(freq_dist[,1])
> freqs <- as.numeric(freq_dist[,2])
> stems <- wordStem(words, language="english")
> uniq_stems <- c()
>
> # make a hash table of stems and their frequencies
> for (i in 1:length(words)) {
> word <- words[i]; stem <- stems[i]; freq <- freqs[i]
> if (exists(stem, envir=stem_dict)) {
> cnt <- get(stem, envir=stem_dict)
> cnt <- cnt + freqs[i]
> assign(stem,cnt,envir=stem_dict)
> } else {
> assign(stem, freq, envir=stem_dict)
> uniq_stems <- append(uniq_stems, stem)
> }
> }
>
> # return data frame of stems and their frequencies
> stem_freqs_list <- mget(uniq_stems,stem_dict)
> stem_freqs <- do.call(rbind,stem_freqs_list)
> return(stem_freqs_list)
> }
>
--
Sarah Goslee
http://www.functionaldiversity.org
More information about the R-help
mailing list