search for: drug15

Displaying 3 results from an estimated 3 matches for "drug15".

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2011 Feb 08
1
Just another pattern matching / indexing question
...1" "DRUG2" "DRUG3" "DRUG4" "DRUG5" [7] "DRUG6" "DRUG7" "DRUG8" "DRUG9" "DRUG10" "DRUG11" [13] "DRUG12" "DRUG13" "DRUG14" "DRUG15" "DRUG16" > truvec<-drugindex$book.MRN[as.vector(unlist(apply(drugindex[,2:17], 2, > grep, pattern="Lamotrigine")))] > truvec truvec [1] 0024633 0008291 0008469 0030599 0027667 37 Levels: 0008291 0008469 0010188 0014217 0014439 0015822 ... 003426...
2003 Dec 08
1
Recoding problem
Hello I have the following variables, all of which are logicals fmar15 fcoc15 fher15 fcrk15 fidu15 what I would like is a variable drug15 which equals idu if fidu15 is T; crk if fidu15 is F but fcrk is T, her if fher15 is T but fcrk15 and fidu15 are F and so on What's the best way to do this? Thanks in advance Peter L. Flom, PhD Assistant Director, Statistics and Data Analysis Core Center for Drug Use and HIV Research Natio...
2011 Sep 28
1
number of items to replace is not a multiple of replacement length
...t; "DRUG3" "DRUG4" "DRUG5" [6] "DRUG6" "DRUG7" "DRUG8" "DRUG9" "DRUG10" [11] "DRUG11" "DRUG12" "DRUG13" "DRUG14" "DRUG15" [16] "DRUG16" "DrugDose1" "DrugDose2" "DrugDose3" "DrugDose4" [21] "DrugDose5" "DrugDose6" "DrugDose7" "DrugDose8" "DrugDose9" [26] "DrugDose10" "DrugDose11&quot...