[R] merging two specific rows in a DF

Hello members, I have this data frame with 3 columns, C1 C2 TYPE 10 20 A 33 44 B 66 80 A 111 140 B 144 220 B 300 340 A 380 449 A 455 500 B 510 520 A 540 580 B Here, the rows 4 , 5 has type B and

Re: [R] DF grouping

Hello Petr Savicky, hello all, I have a situation similar to the previous one, I need to group a data.frame in a specific way, col1 col2 score 2873 3192 319 4268 4451 183 5389 5534 145 6622 10622 4000 12631 17853 5222 20408 20615 207 21595 21838 243 23121 2313918 the out

[R] R matrix help

Dear R experts, I am interested in getting the dimensions for the matrix dynamically, based on the the number of elements in a matrix for example. if the number is 12, I should get dim= 3X4, if it is 20, dim=5X4. please help me do this. Thank you Regards karthick -- View this message in

[R] gslider-gwidgets

Hello R lovers, For my GUI, I am using gslider of Gwidgets. I need to add the to= value dynamically ie., maximum value from a data frame column(something like to=max(df[,3])). But I am getting error message like Error in checkPtrType(object, GtkWidget) : object of class NULL isn't a

[R] DF grouping

Hello Members, I need to group a data.frame in a a specific way, like shown below, DF raw is like this, id col1 col2 score 1 A B 40 2 B C 55 3 C D 4000 4 D E100 5 E F300 I want the out put as List [1] A B C [2] D E [3] F

Re: [R] DF grouping

Dear Petr Savicky, Thank you very much for the solution. your script really worked for my DF, and yes as per your guess , its always --- DF[i, col2] == DF[i+1, col1] Regards, karthick -- View this message in context: http://r.789695.n4.nabble.com/DF-grouping-tp4381310p4381646.html Sent from

Re: [R] to represent color range on plot segment

Dear Jim, Thank you very much for your code. There is no problem with df[df[,2]0,3]-color.scale(df[df[,2]0,2],c(1,0),1,c(0,1)) but the other has an error message if there is a negative value, like df[df[,2]0,3]-color.scale(df[df[,2]0,2],1,c(1,0),c(1,0)) Error in rgb(reds, greens, blues) :

[R] to represent color range on plot segment

Dear R community, With an advantage of being NEW to R, I would like to post a very basic query here, I am in need of representing gene expression data which ranges from -0.09 to +4, on plot segment. please find below the data df, the expression values are in df[,2]. kindly help me with the code,

[R] Parsing txt file

Hello, I have a tab limited text document with multiple lines as mentioned below, #FILE FORMAT #Book booknameauthor publisher pages #CD namecontent

Re: [R] Parsing txt file

Hello Jim, hello all, Thanks very much for the inputs, I used the code and it solved my problem special thanks to Jim Holtman for the code. Regards, karthick -- View this message in context: http://r.789695.n4.nabble.com/Parsing-txt-file-tp3035749p3036284.html Sent from the R help

Re: [R] Cbind query

Hello jholtman, Thanks very much for the suggestion. I tried using as.is=TRUE and it worked as the way I expected. Sorry for not being clear about the problem in my mail. The characters are very much needed, cos I am trying to create a signaling network using Rgraphviz. Thanks again. Regards,

Re: [R] Odp: Cbind query

Hello Petr Pikal, Thanks for the suggestion. I am sorry for not being very clear in my mail. from your example, Its clear to me now about how to turn factors to character values. I am working on large data sets, and the ultimate aim is to create interaction network, so the characters are very

[R] Cbind query

I am new to R and request your kind help. I have a table like the one below, one two 1 apple fruit 2 ball game 3 chair wood 4 wood plain 5 fruitbanana 6 cloth silk Note: duplicate entries are there the task is to create relations to each