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thesevars
2009 Nov 11
1
loop through variable names
Often I perform the same task on a series of variables in a dataframe, by looping through a character vector that holds the names and using paste(), eval(), and parse() inside the loop.
For instance:
thesevars<-names(environmental)
environmental$ToyOutcome<-rnorm(nrow(environmental))
tableOfResults<-data.frame(var=thesevars)
tableOfResults$Beta<- NA
rownames(tableOfResults)<-thesevars
for( thisvar in thesevars) {
thiscommand<- paste("thislm <- lm( ToyOutcome ~ ", thisv...