On May 17, 2010, at 1:36 PM, GL wrote:
I have the two loops listed below. The first executes perfectly and
creates a
series of density plots. The second does not produce any output,
however, if
I enter the exact bwplot command after the loop executes, I get
output for
the last value in the list of services. Why am I not getting output
for
bwplot inside the loop?
#INSIDE LOOP PERFECT OUTPUT - ONE FOR EACH SERVICE
for (Service in Service.Levels) {
dbs1 <- subset( dbs,Service.Code == Service)
if(nrow(dbs1) >2) {
plot(density(dbs1$Enter.to.Incision))
}}
#INSIDE LOOP NO OUTPUT
for (Service in Service.Levels) {
dbs1 <- subset( dbs,Service.Code == Service)
bwplot(M.Surg..Last.Name ~ Enter.to.Incision , data=dbs1)
Read FAQ 7.31
}
#AFTER LOOP AS SINGLE STATEMENT - PERFECT OUTPUT FOR LAST SERVICE
IN LIST
bwplot(M.Surg..Last.Name ~ Enter.to.Incision , data=dbs1)
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David Winsemius, MD
West Hartford, CT
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