How to find standard deviation in R using sqldf package?
Question
All i can do with sqldf package is calculate " avg" "count " and "sum". Can i define my own function for standard deviation?
It is really necessary for me to calculate Standard deviation using sqldf only.
1 answers
solution1
5 ACCPTED 2016-02-08 12:30:20
The function for standard deviation is stdev
d1 = data.frame(x=runif(10))
sqldf("select stdev(x) from d1")
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