for example:
I have a data frame.
data$V4 returns:
.....
[6936] P05796       P11096       P76174       P04475       P18775
[6941] P33225       P76387       P76388       P76388       P09375
[6946] P15300       P15723
1375 Levels:  O50190 O65938 O69415 P00274 P00363 P00364 P00370 P00373 ...
Q9AJ15
data$V5 returns something like data$V4
I want to cbind this two columns, so I use
new <- cbind(data$V4,data$V5)
I expect it to return something like:
[1] P05761 P11986
[2] .......
however it returns
[1] 215 434
[2] 134 213
.............
it uses level number instead of  its content like "P05761". What's wrong
with  it?  how can I get its content instead of level number? I can use some
dirty ways to do that but I didn't understand why.

	[[alternative HTML version deleted]]

