[R] How to make the "apply" faster

[Jeff Newmiller]

function(y) {sum(y>=70)}
-- 
Sent from my phone. Please excuse my brevity.

On July 9, 2016 1:19:27 PM PDT, Debasish Pai Mazumder <pai1981 at gmail.com> wrote:
>I have 4-dimension array x(lat,lon,time,var)
>
>I am using "apply" to calculate over time
> new = apply(x,c(1,2,4),FUN=function(y) {length(which(y>=70))})
>
>This is very slow. Is there anyway make it faster?
>
>-Debasish
>
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