[R] Logical indexing not working

[Rui Barradas]

Hello,

Please don't post in HTML, it messes up the code and data.
And please use ?dput to post your data:

dput(fa1)  # post the output of this.


As for your problem, maybe if you try ?%in%

fa1[sites==1 & birds %in% c(1,23,24,29),]


Hope this helps,

Rui Barradas

Em 27-09-2013 19:20, Mariki Zietsman escreveu:
> I have a data frame frugivore.abundance.S1 where some columns are factors and others are numbers.For example these are my independent variables and "density" is my dependent variable. census<-c(1:70)sites<-c(1:5)birds<-c(1:45)
>
> I want to select the data where sites is 1 and birds are 1,23,24 or 29
> So I write:fa1<-frugivore.abundance.S1attach(fa1)(abund.frug.RN1<-fa1[sites==1 & birds==c(1,23,24,29),])
> This code doesn't print all the data it should for some reason. It seems to not print rows where "density" has the same value as another row with the same criteria.
> i.e. if in the original data we have the following then only rows 1 and 3 will be printed, not all of them:
> census   sites   birds   density1                 1         1         0.0032                 1         1         0.0033                 1         1         0.001
> Can anyone help me out with this please?
> RegardsMariki
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