Hi ,
I need to write a function to delete a row if the value of one element of the
row is negatif!!!
I have a big file of data and i will check every lines!!!
Any ideas
Thank you !!
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# identify rows with only positive values mydata.index <- apply(mydata, 1, function(x)all(x >= 0)) # create a new data frame/matrix with only those rows mydata.pos <- mydata[mydata.index,] Sarah On Thu, Aug 6, 2009 at 8:57 AM, Inchallah Yarab<inchallahyarab at yahoo.fr> wrote:> Hi , > > I need to write a function to delete a row if the value of one element of the row is negatif!!! > I have a big file of data and i will check every lines!!! > > Any ideas > Thank you !! > >-- Sarah Goslee http://www.functionaldiversity.org
Try this: m[!apply(m < 0, 1, any),] On Thu, Aug 6, 2009 at 9:57 AM, Inchallah Yarab <inchallahyarab@yahoo.fr>wrote:> Hi , > > I need to write a function to delete a row if the value of one element of > the row is negatif!!! > I have a big file of data and i will check every lines!!! > > Any ideas > Thank you !! > > > > > [[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]]