r - replace() function recodes entire column -


i using r, , need recode variables in list. list follows:

> list1  group.1     x 1        4000     2        3890

where in group.1 column replace instance of 1 male, , 2 female.

i have tried replace() function:

replace(list1,list1$group.1 == "1", "male")

which returns

group.1     x male        4000     male        3890

i.e., has relplaced group.1 == 2 male. have missed step? far can see use of replace function - group.1 == 1 should limit replace command values in group.1 equal 1. seems criteria not doing anything.

replace operates on vectors, not data.frames. try this:

> replace(df$group.1,df$group.1 == 1, "male") [1] "male" "2"

and change data, can do:

> df$group.1 <- replace(df$group.1,df$group.1 == 1, "male") > df   group.1    x 1    male 4000 2       2 3890

what trying looks application factor column levels c("male", "female").


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