[R] solicit help to read in 384 plate color image

Hi, I am doing an experiment which results different colors of different intensities in the 384 micro titer plate. I took a picture of the plate by scanning in the image as a jpeg file and now I want to 1. read in the image file 2. grid the content 3. need to extract the intensity and color of

[R] online recursive lssvm r package

Hi, I am looking for a R package which can do online recursive training, e.g. online recursive LSSVM algorithm. Can some one help? Thanks. Waverley. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list

Re: [R] R program google search

Alto waverley.paloa...@gmail.com wrote: Hi, Can someone help as how to use R to program google search in the R code?  I know that other languages can allow or have the google search API If someone can give me some links or sample code I would greatly appreciate. Thanks. -- Waverley @ Palo

[R] R program google search

Hi, Can someone help as how to use R to program google search in the R code? I know that other languages can allow or have the google search API If someone can give me some links or sample code I would greatly appreciate. Thanks. -- Waverley @ Palo Alto

Re: [R] R program google search

API. What about R? Thanks. On Fri, Sep 3, 2010 at 2:23 PM, Waverley @ Palo Alto waverley.paloa...@gmail.com wrote: Hi, Can someone help as how to use R to program google search in the R code?  I know that other languages can allow or have the google search API If someone can give me some

[R] how to implement string pattern extraction in R

Hi, In perl, to get a substring matching a particular pattern can be implemented like the following example: $x = .txt; if ($x=~ /(.*?)\.txt/){ $prefix = $1; } So how to do the same thing in R? Can someone provide me the code sample? Thanks much in advance. -- Waverley @ Palo Alto

Re: [R] how to implement string pattern extraction in R

similar to that in perl to extract the prefix out of the string. Thanks much. On Sun, Aug 22, 2010 at 3:05 PM, Waverley @ Palo Alto waverley.paloa...@gmail.com wrote: Hi, In perl, to get a substring matching a particular  pattern can be implemented like the following example: $x = .txt

[R] program R using mac Xcode

Hi, I am starting to use Xcode a lot for C/C++ programming. Can you do R programming in Xcode? If can, how to configure to enable this? Much thank in advance. -- Waverley @ Palo Alto __ R-help@r-project.org mailing list https://stat.ethz.ch

[R] User R to create MySQL database and table

provide me some sample code to create a database and table? Specifically create a database first, then create a table inside the database. Thanks a lot in advance. -- Waverley @ Palo Alto __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman

[R] Question to use R plot GO pie chart

Hi, I have a list of IPI gene IDs. I want to find out whether there is a package which can map the gene ontology to these IPIs, and plot the pie chart to demonstrate the molecular function distributions. The input is like the following gene IPI IDs:

[R] question about function heatmap

the borders are. Can someone help? Essentially I want the dendro tree of the genes which are grouped after the clustering so that, e.g., I want to check whether genes clustered together are in the same pathway etc. Thanks in advance. -- Waverley @ Palo Alto

Re: [R] how to fetch rows with certain characteristics

to compute the values is tapply(x[,1], x[,2], min) -Ista On Thu, Oct 29, 2009 at 1:47 AM, Waverley @ Palo Alto waverley.paloa...@gmail.com wrote: Hi, I have a matrix, first column is of certain values, second column is the class labels or a factor. e.g. 1.2 1 1.3 1 1.3 1 1.5 1 2.1 2

Re: [R] how to fetch rows with certain characteristics

 1 [3,] 2.0  2 [4,] 1.4  3 ## unique matches unique(x[x[,1] %in% x.min,])      V1 V2 [1,] 1.2  1 [2,] 2.0  2 [3,] 1.4  3 -Ista On Thu, Oct 29, 2009 at 12:36 PM, Waverley @ Palo Alto waverley.paloa...@gmail.com wrote: Thanks.  That works. However, in my own case, there are more columns

[R] how to fetch rows with certain characteristics

to return a matrix of 1.2 1 2.0 2 1.3 3 Can someone suggest how to code for that? The second column can be of characters. Thanks much. -- Waverley @ Palo Alto __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do

[R] need help explain the routine input parameters for seROC and cROC found in the R archive

-seROC(AUC1,na1,nn1) se2-seROC(AUC2,na2,nn2) sed-sqrt(se1^2+se2^2-2*r*se1*se2) zad-(AUC1-AUC2)/sed p-dnorm(zad) a-list(zad,p) a } -- Waverley @ Palo Alto __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE