Do an 'str' of your object. It looks like one of the columns is probably character/factor since there are quotes around the 'numbers'. You can also explicity convert the offending columns to numeric is you want to. Also use colClasses on the read.csv to define the class of the data in each column. This will should you where the error is.
On Wed, Jun 17, 2009 at 7:41 AM, suparna mitra < mi...@informatik.uni-tuebingen.de> wrote: > Dear All, > Just to add some more lines in my previous query I am writing this. I was > checking with several data. The cases where the apply function is working, > the part of result looks like : > > > apply(Species.all[1:10,],1,max,na.rm=TRUE) > 1 2 3 4 5 6 7 8 9 10 > 22392 45 45 45 14 25 25 753 101 10 > > and with the problematic data it looks like: > > > apply(Species.all[1:10,],1,max,na.rm=TRUE) > 1 2 3 4 5 6 7 8 9 10 > "7286" "3258" "1024" " 45" " 45" " 45" " 9" " 25" " 25" " 753" > > But my all the datasets are in CSV format. I am reading those datasets as > read.csv or read.delim > Can anybody please suggest me how to this problem? > Thanks and regards, > Suparna. > > > On Wed, Jun 17, 2009 at 1:14 PM, suparna mitra < > suparna.mi...@googlemail.com > > wrote: > > > Dear All, > > I am having some problem in apply function. > > I have some data like below. I want to get a range vector (which is > max-min > > value for each row , ignoring NA values.) > > > Species.all[1:10,] > > V2 V3 V4 V5 V6 V7 V8 V9 > > 1 57543 55938 47175 54922 36032 5785 29497 7286 > > 2 42364 40472 29887 40107 19723 2691 14445 3258 > > 3 19461 19646 18538 22392 6744 794 4919 1024 > > 4 45 41 28 34 33 NA 26 NA > > 5 45 41 28 34 33 NA 26 NA > > 6 45 41 28 34 33 NA 26 NA > > 7 14 9 14 14 7 NA 10 NA > > 8 20 25 10 15 21 NA 10 NA > > 9 20 25 10 15 21 NA 10 NA > > 10 578 566 478 753 361 150 262 170 > > > dim(Species.all) > > [1] 1862 8 > > > > I used apply function like below. I used this same function for some > other > > data, there it worked. But here its not working (giving error message). > > > > > Range.j=apply(Species.all,1,max,na.rm = > > TRUE)-apply(Species.all,1,min,na.rm = TRUE) > > Error in apply(Species.all, 1, max, na.rm = TRUE) - apply(Species.all, : > > non-numeric argument to binary operator > > > > When i tried to check, you can see from the steps it is giving totally > > wrong results. > > > > > apply(Species.all[1:10,],1,max) > > 1 2 3 4 5 6 7 8 9 10 > > "7286" "3258" "1024" NA NA NA NA NA NA " 753" > > > apply(Species.all[1:10,],1,min) > > 1 2 3 4 5 6 7 > > 8 9 10 > > " 47175" " 29887" " 18538" NA NA NA NA > > NA NA " 262" > > > > > > Main problem is, this code is working for some cases, but not for all. > Does > > any body have an idea, why it is so? Or can anyone show me some other way > to > > do the same. > > Thanks in advance, > > With best regard, > > Suparna > > > > [[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<http://www.r-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? [[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.
