[R] question about changing color scale in plot.fmri
Hello everybody, I am using plot.fmri function to plot some stats on a functional image, but for some reasons the only collor I get on the image is gray. Here is the function I am using:plot.fmridata(t1,type=slice,col.o=heat.colors(256)) It is the first time I am using this package, so I might be doing something completely wrong. Any advice would be great ! Dana [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] question about reshape
Hello everyone, I have a bit of a problem with reshape function in R. I have simulated some normal data, which I have saved in 4 vectors. y.1,y.2,y.3,y.4 which I combined a dataset: datasetcbind(y1,y2,y3,y4). I have also generated some subject id number, and denoted that by subject. So, my dataset looks like this: subject y.1y.2 y.3 y.4 [1,] 1 20.302707 16.9643106 30.291031 7.118748 [2,] 2 9.942679 9.3674844 7.578465 16.494813 ..etc, I have 20 subjects. I want to transform this data into long form dataset, but it does not work. I am using reshape command, and should be very straight forward... Here is what I use: long-reshape(dataset, idvar=subject, v.names=response, varying=list(2:5), direction=long) Here is what I get: Error in d[, timevar] - times[1L] : subscript out of bounds Now, do I get that error because the first column shows me the row number? I have been using R for a while, but not a lot for data manipulations. Any help would be great! Thank you in advance. Dana [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] question about reshape
Thank you very much everybody. That worked. Dana On Thu, Jan 28, 2010 at 12:23 PM, Henrique Dallazuanna www...@gmail.comwrote: Try this: ong-reshape(as.data.frame(dataset), idvar=subject, v.names=response, varying=list(2:5), direction=long) or dataset - cbind.data.frame(y1, y2, y3, y4) On Thu, Jan 28, 2010 at 3:07 PM, Dana TUDORASCU dana...@gmail.com wrote: Hello everyone, I have a bit of a problem with reshape function in R. I have simulated some normal data, which I have saved in 4 vectors. y.1,y.2,y.3,y.4 which I combined a dataset: datasetcbind(y1,y2,y3,y4). I have also generated some subject id number, and denoted that by subject. So, my dataset looks like this: subject y.1y.2 y.3 y.4 [1,] 1 20.302707 16.9643106 30.291031 7.118748 [2,] 2 9.942679 9.3674844 7.578465 16.494813 ..etc, I have 20 subjects. I want to transform this data into long form dataset, but it does not work. I am using reshape command, and should be very straight forward... Here is what I use: long-reshape(dataset, idvar=subject, v.names=response, varying=list(2:5), direction=long) Here is what I get: Error in d[, timevar] - times[1L] : subscript out of bounds Now, do I get that error because the first column shows me the row number? I have been using R for a while, but not a lot for data manipulations. Any help would be great! Thank you in advance. Dana [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40 S 49° 16' 22 O -- [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
