[R] how to set missing values in R

[Yulei He]

Hi, there.

Can I ask how to set up missing values in R? Suppose I want to assign the
missing value to the elements in vector which is greater than zero like
this:

x<-c(1,3,-1,0,4);

after the missing value assignment, x becomes (NA,NA,-1,0,NA).

Thanks!

Yulei


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Yulei He
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