[R] Exclude data using logical

[pgseye]

Hi,

I'm wanting to exclude data more than 2 sd's from the mean before proceeding
with further analyses. I've created new logical variables (a and b) and
written them to the existing dataframe. I want to be able to subset the TRUE
observations based on another 2 factor variable. I'm assuming this is
possible, but I don't know what I'm doing wrong, as I get results that
obviously aren't correct.

Many thanks,

Paul

twin.wide$a<-twin.wide$RCCT<600 & twin.wide$RCCT>480
twin.wide$b<-twin.wide$LCCT<600 & twin.wide$LCCT>480

selVarsCCT <- with(twin.wide,c('a','b'))

MZCCT <- subset(twin.wide,Zygosity=='MZ',selVarsCCT)
DZCCT <- subset(twin.wide,Zygosity=='DZ',selVarsCCT)
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