[R] adding columns to a table after a loop
Albert Picado
albert_picado at yahoo.fr
Sat Aug 12 16:09:08 CEST 2006
Dear list,
I am trying to find the way to add columns to a table
(or a matrix) after a loop. The result of this loop is
an array and I would like to get all the results in a
single table once the loop is finish. I have
reproduced a simplified example below:
> a<- 1
> b <- matrix()
> while (a <= 4) {
+ b<-rnorm(10)
+ a<- a +1
+ }
# I have tried several methods but without succes so
far.
> result <- as.data.frame(cbind(b))
> result
b
1 -0.03250661
2 -0.59823770
3 1.58120471
4 0.41086546
5 0.78959090
6 1.23587125
7 0.83427190
8 1.09035581
9 0.11331056
10 0.25267231
the result above is not what I am looking for because
it shows only the results from the last operation in
the loop, I would like to obtain something like the
following.
> result
b1 b2 b3 b4
1 -0.08420826 -0.0637943 -0.83246201 -1.0902384
2 0.40623009 -2.7940096 1.37664973 1.6023967
3 -1.13850505 1.1660669 -0.95962296 -0.7325098
4 -1.06183391 1.1063677 1.67948677 -1.9875475
5 -0.64431067 -0.4843952 -1.30742858 0.5064134
6 0.56729468 1.0860484 0.07651954 0.4380108
7 0.95036177 -0.5328609 1.28954934 -0.2775614
8 -0.17848223 0.5340379 -0.22613700 1.0179886
9 2.93145454 -1.8639607 -0.25478610 1.6619754
10 1.51942415 -0.2051423 0.09144450 -1.6329481
I hope someone can give me a hand
best regards
a
p5.vert.ukl.yahoo.com uncompressed/chunked Sat Aug 12 13:14:00 GMT 2006
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