[R] Sum(..) in apply()
ligges at statistik.tu-dortmund.de
Wed Feb 4 20:01:50 CET 2009
> I have a set of ascii-grids. For each gridcell I want to count all values
> that lie between 15 and 6.
> Therefore I combined the ascii-grids in an array and used
> result<- apply(temp,2,sum((temp <=15)&(temp > 6)), na.rm=TRUE)
> But, this doesn`t work. It seems that the combination apply with sum(...) is
> not working, since the pure
> apply(object,2,sum) does work.
> May you help me want to do here instead?
You probably want
result <- apply(temp <= 15 & temp > 6, 2, sum, na.rm=TRUE)
> Thank you very much in forward
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