Re: [R] excluding NAs in data frame without deleting rows
use: sum(x,na.rm=T) like this: my.row.sums - apply(my.matrix,1,sum,na.rm=T) If you want to do across columns then use 2 instead of 1. Look at ?apply and ?sum. Adrian On Fri, May 29, 2009 at 7:46 AM, Wade Wall wade.w...@gmail.com wrote: Hi all, I have a binary matrix with NAs included. Each row and column includes at least one NA, so I don't want to omit them. Is there a way to sum across rows and columns, ignoring the NAs but not deleting the row or column? If not, I suppose I can write a loop function, but I have learned that it is best to stay away from loops if possible. Thanks for any help, Wade __ 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. [[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] Printing to screen a matrix or data.frame in one chunk (not splitting columns)
Hello, I saw this nice trick I want to replicate but I lost the source and I hope one of you can point me to the solution. My problem is that I don't know the correct words to query this. When I print to screen a matrix or data.frame the columns are split and printed below the previous ones; even though I have plenty of screen left. E.g., my_matrix = matrix(runif(30),nrow=3,ncol=10) my_matrix [,1] [,2] [,3] [,4] [,5] [,6] [,7] [1,] 0.4979305 0.1155717 0.4484069 0.29986049 0.5427566 0.4324351 0.269171456 [2,] 0.8405987 0.3605237 0.6615507 0.75305248 0.8569482 0.3401004 0.192526423 [3,] 0.5608779 0.3953941 0.9995035 0.03141064 0.7985053 0.4903582 0.000490054 [,8] [,9] [,10] [1,] 0.1402751 0.2852381 0.98816751 [2,] 0.8337806 0.7322920 0.17505541 [3,] 0.5414113 0.4668012 0.04420137 So there is a way to resize the space for printing so that everything in printed in one chunk. Thanks in advance, Adrian [[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] Batch importing data with respective naming
By doing peak - list() you initialize a list and then you are adding the
data objects to the list in the for loop.To access each data object just go:
peaks[[i]]
Where i is in [1,100]. This will return the data object you want.
Adrian
On Tue, Apr 28, 2009 at 11:23 PM, Taylor Hermes trher...@gmail.com wrote:
It seems that this addition works, but has created just one object
called 'peak' with all the data from those 100 files. I'd like each
file to have a corresponding object containing the data.
Thanks for your help!
On Tue, Apr 28, 2009 at 19:43, Zeljko Vrba zv...@ifi.uio.no wrote:
On Tue, Apr 28, 2009 at 07:09:04PM -1000, Taylor Hermes wrote:
I tried the following:
Add this before for():
peak - list()
for (i in 1:100) {
peak[[i]] - read.table(paste(i,--one--hist.txt, sep=),
sep=,,
header=TRUE)
}
__
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http://www.R-project.org/posting-guide.html
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[[alternative HTML version deleted]]
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