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
>
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