Displaying 1 result from an estimated 1 matches for "untilpregnant".
2010 Sep 07
1
how to combine several subsets?
I simply put,
> NEVER=subset(infants$bwt,ISNO1)
> UNTILPREGNANT=subset(infants$bwt, ISNO2)
> ONCENOTNOW=subset(infants$bwt, ISNO3)
and I wanna combine those three.
I do it like
ISNO=NEVER&UNTILPREGNANT&ONCENOTNOW
and R tells me
1: In NEVER & UNTILPREGNANT :
longer object length is not a multiple of shorter object length
2: In NEVER & U...