[R] substitute variable

[Benilton Carvalho]

say your data frame is called "tmp"

tmp$PRODUCTS[tmp$PRODUCTS > 70] <- NA

b

On Mar 26, 2007, at 12:31 PM, Sergio Della Franca wrote:

> Dear R-Helpers,
>
> I want to substitute the contents of a variable under some contitions.
>
> I.e., I have this data set:
>
> YEAR   PRODUCTS
> 1          80
> 2          90
> 3          50
> 4          60
> 5          30
>
> I want to perform this condition:
> if products> 70 then products=NA else products=products.
>
> I'd like to achive the seguent result:
>
>  YEAR   PRODUCTS
> 1          NA
> 2          NA
> 3          50
> 4          60
> 5          30
> How can i develop this?
>
>
> Thank you in advance.
>
>
> Sergio Della Franca
>
> 	[[alternative HTML version deleted]]
>
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