Re: [R] Extracting rows from a dataset

Thanks Jorge, It worked. A.K. From: Jorge I Velez To: arun Cc: R help Sent: Wednesday, May 30, 2012 6:11 PM Subject: Re: [R] Extracting rows from a dataset Hi A.K., Thank you for the example. Here is one way: dat[apply(dat, 1, function(x) x[1] == 1

Re: [R] Extracting rows from a dataset

Hello, Try the following. ix <- apply(dat, 1, function(x) x[1] == 1 && sum(diff(x) != 0) > 1) dat[ix, ] Hope this helps, Rui Barradas Em 30-05-2012 22:45, arun escreveu: Dear R help, I have a dataset with 1's and 0's. Here, each row is the observation for an insect. If the animal is pres

Re: [R] Extracting rows from a dataset

Hi A.K., Thank you for the example. Here is one way: dat[apply(dat, 1, function(x) x[1] == 1 & length(rle(x)$values) > 2), ] See ?rle and ?apply for more details. HTH, Jorge.- On Wed, May 30, 2012 at 5:45 PM, arun <> wrote: > Dear R help, > > I have a dataset with 1's and 0's. Here, each r

[R] Extracting rows from a dataset

Dear R help, I have a dataset with 1's and 0's.  Here, each row is the observation for an insect.  If the animal is present in light area at a particular time, response is 1 and if it is present in dark area, the response is 0.  I would like to do some formating on the data for analysis.  To be