Displaying 1 result from an estimated 1 matches for "tstcutoff".
2013 Apr 25
1
Assigning a variable value based on multiple columns
...iabetes ESRD HIV Contact
1 0 0 NA 0
2 1 0 NA 0
3 NA 1 0 0
4 0 NA 0 1
5 1 1 1 0
I want to generate a column called TSTcutoff based on the values in the row. TSTcutoff would be the lower of 15 (if Diabetes=ESRD=HIV=Contact=0), 10 (if Diabetes or ESRD=1 AND HIV=Contact=0), or 5 (if HIV OR Contact=1). I was thinking this could be done with a series of IFELSE statements, but the NA values make this more challenging. I wan...