I'm essentially trying to add column names to a dataframe that does not have them. I have two dataframes, one of which has dimensions 1 x 95 (1 row containing 95 values that are column names that correspond to the 95 columns of the second df, which has dimensions of 146048 x 95 but no column names). I can't use rbind because the two df's obviously don't have the same column names, and for some reason when I use 'append' it doubles the number of columns in the resulting df (dimensions = 146048 x 190). Does anybody know why this is happening when I use 'append'? And can anybody suggest a solution that will achieve what I'm trying to do?
Thanks!
How about something like this. In the example below, x is a data frame and vn is also a data frame, but its sole row contains variable names for x. You can use setNames() on x to change its names to the first row of vn.
x <- matrix(rnorm(10), ncol=5)
x <- as.data.frame(x)
x
# V1 V2 V3 V4 V5
# 1 0.1600919 1.375629 0.2838454 1.403162 0.7560366
# 2 0.3596158 1.594954 0.6369160 -1.368186 -0.2590074
vn <- matrix(paste("var", 1:5, sep="_"), nrow=1)
vn <- as.data.frame(vn)
x <- setNames(x, vn[1,])
x
# var_1 var_2 var_3 var_4 var_5
# 1 0.1600919 1.375629 0.2838454 1.403162 0.7560366
# 2 0.3596158 1.594954 0.6369160 -1.368186 -0.2590074