[R] Sum(..) in apply()

[Uwe Ligges]

ole_roessler wrote:
> Dear,
> 
> 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)

Uwe Ligges


> Thank you very much in forward
> 
> Ole
> 
> 
> 
>