我有以下代码:
visitnum = put(visitn,visitnumber.);
这是针对
proc format;
value visitnumber
'Screening Assessment' = 1
'Treatment Visit - Day 1' = 2
'Treatment Visit - Day 7' = 3
'Treatment Visit - Day 14/15' = 4
'Follow-Up Visit - Day 28' = 5
run;
但是,当我输出“visitnum”变量时,它会将“Treatmen”作为匹配列的输出。