Hi Ragia, This is a bit cryptic. "ISINFCluster" looks like a 50 element logical vector with two TRUE values. "all" looks like a 50 element numeric vector of counts for each value. "firstclass" contains the 20th and 27th elements of "all", selected with "ISINFCluster". As "firstclass" is a two element named vector, there is only one "row" and that includes the entire object.
Jim On Sun, May 10, 2015 at 7:26 PM, Ragia Ibrahim <ragi...@hotmail.com> wrote: > Dear group > kindly > > I have a logical data type > ISINFCluster: > 1 2 3 4 5 6 7 8 9 10 11 12 13 > 14 > FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE > FALSE > 15 16 17 18 19 20 21 22 23 24 25 26 27 > 28 > FALSE FALSE FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE TRUE > FALSE > 29 30 31 32 33 34 35 36 37 38 39 40 41 > 42 > FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE > FALSE > 43 44 45 46 47 48 49 50 > FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE > > and I want to get just number of records from those that has the value true, > thus > > firstclass<- all[ISINCluster] > where all is numeric object > 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 > 27 28 29 > 1 1 2 1 3 1 1 2 5 4 1 6 8 1 2 1 3 3 2 13 1 4 2 4 7 1 > 14 1 1 > 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 > 1 1 2 2 1 1 2 2 2 9 3 1 1 3 6 1 4 1 3 9 2 > > the firstclass containes the following > firstclass > 20 27 > 13 14 > > And I could not get the first row.. > head(firstclass) > 20 27 > 13 14 > > > how can I got it? > thanks in advance > Ragia > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
