[R] missing value

[Jacques VESLOT]

dat[dat==9] <- NA
because the result of mean() is real and summary()'s output is a vector.
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Jacques VESLOT

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Mauricio Cardeal a écrit :
> Hi all
> 
> # I have this data set and how can I assign NA´s in just one command ? 
> And why the summary(dat) function preserves the value 9 as real. ?
> 
> x <- c(1,2,3,9,4)
> y <- c(3,6,9,2,3)
> z <- c(9,9,2,2,8)
> w <- c(6,5,3,0,9)
> 
> dat <- cbind(x,y,z,w)
> summary(dat)
> 
> x[x==9] <- NA
> y[y==9] <- NA
> z[z==9] <- NA
> w[w==9] <- NA
> 
> summary(dat)
> summary(x)
> summary(y)
> summary(z)
> summary(w)
> 
> Thank you all,
> Mauricio
> 
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