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sc440
2011 Nov 19
1
Advice on recoding a variable depending on another which contains NAs
...et the final
score to SCQScore1 for these. [[This is a debatable choice,
but I am not asking your advice on that choice!]]
d$SCQScore <- 99
##Distinct value for any other values I've missed
d$SCQScore[SCQ1 == 1] <- d$SCQScore1[SCQ1 == 1]
## Talks using phrases/sentences, so sum S2CQ:SCQ40
d$SCQScore[SCQ1 == 2] <- d$SCQScore2[SCQ1 == 2]
## Can't do this, so sum SCQ8:SCQ40
d$SCQScore[is.na(d$SCQ1)] <- d$SCQScore1 [is.na(d$SCQ1)]
## SCQ1 is missing
This fails on line 2
(d$SCQScore[SCQ1 == 1] <- d$SCQScore1[SCQ1 == 1])
with the error message
"NAs are not allowed...