[R] options --- na.rm , save-on-exit

From: <ivo_welch-rstat8783_at_mailblocks.com>
Date: Sun 04 Jul 2004 - 01:45:45 EST

dear R wizzards: two options() related questions.

[a] options(na.action): many of my variables have missing variables,
so I would like to set a default to ignore, especially in univariate functions like mean() and median() . alas, without na.rm=T in the functions themselves, I always get an NA. my code is full of na.rm=T is there a magic invokation of options with na.action that is honored
by these functions?

[b] options(?): how do I get R to not prompt me for saving the
workspace upon exit, but to instead automatically save the command
history .Rhistory but not the data .RData ?

help appreciated.

sincerely,

/iaw

---
ivo welch
professor of finance and economics
brown / nber / yale

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Received on Sun Jul 04 01:50:06 2004

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