similar to: Converting a Vector into a 2-level Factor

Hi there, I need help with IFELSE function. The column g of my dataset pth, pth$g consists of "aa", "ao", "dcl", "iy", "sh". The last few values of pth$g looks like: [4496] sh ao ao sh iy dcl dcl aa iy iy aa sh ao ao Levels: aa ao dcl iy sh I want to convert these values into 1,2,3,4,5. I tried to use a loop and I found the following

R-philes, I have a question about displaying counts of unused factors using the table() function. I have two vectors with character data in them: local.labels("ah", "ah", "ah~") local.preds("ah", "ah", "ah") If I use the table function as shown below, I get an error because the number of levels do not match up. v.cont.table <-

Dear R-philes: I am having an issue with exporting contingency tables with xtable(). I set up a contingency and convert it to a matrix for passing to xtable() as shown below. v.cont.table <- table(v_lda$class, grps, dnn=c("predicted", "observed")) v.cont.mat <- as.matrix(v.cont.table) Both produce output as follows: observed predicted uh uh~ uh 201

Hello, I am trying to build a regex to extract vowels and consonants from a string. So far, I am able to extract the basic a-e-i-o-u sequence using the following extension to the String class: class String def vowels scan(/[aeiou]/i) end def consonants scan(/[^aeiou]/i) end end examples: >> "Mary had a little lamb".vowels => aaaiea >> "Mary had a

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

In a number of different situations I'm trying to remove factor levels that are represented by less than a certain number of rows, e.g. if I had the dataset aa below and wanted to remove the species that are represented in less than 2 rows: data(iris) aa <- iris[1:101,] In this case, since I can see that the species virginica only has one row, I can write: table(aa$Species) setosa

Hello, I have been trying to use by to create a means table, but receive the error " by(xx, list(subjs, cons, vowels), mean) Error in Summary.data.frame(..., na.rm = na.rm) : only defined on a data frame with all numeric or complex variables" when the data frame consists of three factor columns (subjs, cons and vowels) and 5 numeric data columns. The output I'm looking for is a

An embedded and charset-unspecified text was scrubbed... Name: inte tillg?nglig URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20120303/a62e41f2/attachment.pl>

I ran into a dependency problem while compiling the CVS snapshot which did not occur while compiling the beta 3 tarballs. For some missing resources, autogen.sh echoes very helpful messages (such as if automake is not present), but there was no indication that the kdelibs-devel package was required for ao (in order to get artsc.h into /usr/include - I'm sure it is possible to edit the

Here's another *incorrect* way to do it -- incorrect because it will not always work, unlike Iris's correct solution. But it does not require PERL type matching. The idea: separate the two vowels in the regex by a character that you know cannot appear (if there is such) and match it optionally, e.g. with '*" repetition specifier. I used "?" for the optional character

Hi Iris, Thank you. Further, very nice solution. Best, Iago On 01/03/2024 12:49, Iris Simmons wrote: > Hi Iago, > > > This is not a bug. It is expected. Patterns may not overlap. However, there > is a way to get the result you want using perl: > > ```R > gsub("([aeiouAEIOU])(?=[aeiouAEIOU])", "\\1_", "aerioue", perl = TRUE) > ``` >

I am calculating some values that I am inserting into a data frame. From what I have read, creating the dataframe ahead of time is more efficient, since rbind (so far the only solution I have found to appending to a data frame) is not very fast. What I am doing is the following: # create data frame goframe = data.frame(goA = character(10), goB = character(10), value = numeric(10)) goframe[1,] =

Hello, What should the following input produce? Dutch has shifted Germanic g to the velar fricatives [?] and [x], but retained the spelling with <g> and thus at least a visual similarity to German; English and Frisian have shifted g to [j] before palatal vowels The Dingus says: <p>Dutch has shifted Germanic g to the velar fricatives [?] and [x], but retained the spelling

Hi all, I tested next command: gsub("([aeiouAEIOU])([aeiouAEIOU])", "\\1_\\2", "aerioue") with the following output: [1] "a_eri_ou_e" So, there are two consecutive vowels where an underscore is not added. May it be a bug? Is it expected (bug or not)? Is there any chance to get what I want (an underscore between each pair of consecutive vowels)?

Hi Iago, This is not a bug. It is expected. Patterns may not overlap. However, there is a way to get the result you want using perl: ```R gsub("([aeiouAEIOU])(?=[aeiouAEIOU])", "\\1_", "aerioue", perl = TRUE) ``` The specific change I made is called a positive lookahead, you can read more about it here: https://www.regular-expressions.info/lookaround.html

Hello, I have a vector x containing letters ("a", "b" etc.). Now I want to convert it to factor and group some letters into one common level. If I do it by factor function, giving the same label names for all values I want to group, it doesn't work: > x<-letters[1:5] > x [1] "a" "b" "c" "d" "e" >

Hi all, In Spanish vowels with accent like ?, ?, ... doesn't affect to the alphabetical order of vector of strings. I mean, a or ? don't matter for establishing the alphabetical order. Nevertheless, while working with R order, here is what I get. Given a file transport.txt medio#variable avi?n#34 barco#33 bicicleta#3 ?ngulo#37 cami?n#54 coche#23 tren#67 > toPlot <-

I've been kind of busy lately, but I wanted to see what's up with ao after the build change. I was able to check out the vorbis module, but when I tried to check out the ao module I saw this: [stan@volsung vorbis]$ cvs -d:pserver:anoncvs@cvs.xiph.org:/usr/local/cvsroot co -r branch_postbeta2 ao cvs server: Updating ao cvs server: Updating ao/doc cvs server: Updating ao/include cvs

Hello, I am not expert in wavelet. i am working with a discrete dataset in 3D. I applied the D4 wavelet transform to each dimension sequentially. I made some analysis in the transformed space and i detected some interesting vowel. My question is. How is it possible to map a 3d coordinate in the transformed space to the related coordinate in the 3d original dataset? (i think that probably one

The script below successfully produces a biplot of the data but the 'site names' (rows) and the names of the 'response variables' (columns) are shown as simple numerals (rather than the column and row names). How might I 'enforce' the use of the row/column names used in the datafile (section of datafile shown below)? Can anyone help, please? Section of datafile sample a b