Displaying 2 results from an estimated 2 matches for "fixinx".
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2009 Mar 30
3
Calculating First Occurance by a factor
...to my problem that without using a
for loop. For the amount of data I (will) have, the for loop will probably
be too slow. I tried searching around before posting and couldn't find
anything, hopefully it's not embarrassingly easy.
Consider the data.frame, Data, below
Data
Sub Tr IA FixInx FixTime
p1 t1 1 1 200
p1 t1 2 2 350
p1 t1 2 3 500
p1 t1 3 4 600
p1 t1 3 5 700
p1 t1 4 6 850
p1 t1 3 7 1200
p1 t1 5 8 1350
p1 t1 5 9 1500
What I'm trying to do is for each uniqu...
2009 Apr 01
0
回复： R-help Digest, Vol 73, Issue 32
...to my problem that without using a
for loop. For the amount of data I (will) have, the for loop will probably
be too slow. I tried searching around before posting and couldn't find
anything, hopefully it's not embarrassingly easy.
Consider the data.frame, Data, below
Data
Sub Tr IA FixInx FixTime
p1 t1 1 1 200
p1 t1 2 2 350
p1 t1 2 3 500
p1 t1 3 4 600
p1 t1 3 5 700
p1 t1 4 6 850
p1 t1 3 7 1200
p1 t1 5 8 1350
p1 t1 5 9 1500
What I'm trying to do is for each uniqu...