Displaying 2 results from an estimated 2 matches for "franziskabroell".
2010 Jan 20
3
Deleting rows based on duplicate entries in one columns in a data matrix
Hi everybody,
I would like to delete rows based on duplicate entries in column 3 in the
data matrix X (size 60000 x 57). I have tried the unique(x) command as
> data <- X[unique(X[,3]),]
however, for some reason the command introduces a lot of NA's into the
dataset.
So, now I'm looking for a function that eliminates rows, if they have
duplicate values in column 3.
Does anyone
2010 Nov 06
4
Using changing names in loop in R
Hello everybody,
I have usually solved this problem by repeating lines of codes instead of a
loop, but it's such a waste of time, I thought I should really learn how to
do it with loops:
What I want to do:
Say, I have several data files that differ only in a number, e.g. data
points (or vector, or matrix...) Data_1, Data_2, Data_3,... and I want to
manipulate them
e.g. a simple sum of