make a series in R with seq

Question

I try to generate a series like:
a thousand of 1, a thousand of 2,... until a thousand of 100.
I try this code:

 test <- round(seq(1, 100, length.out=100000))

but unfortunately, when I do a table, I obtain this:
enter image description here

Have you an idea? Thanks a lot.

Sorry everyone, I find => test <- rep(seq(1, 100), each=1000). Thanks. — Olivier GSCHWIND, Oct 25 '18 at 20:27

score 1 · Answer 1 · answered Oct 25 '18 at 20:23

1

It's because you are using round which rounds to the nearest integer.

Just do test <- seq(1, 100, length.out=100000)

answered Oct 25 '18 at 20:23

thc

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This produces the sequence 1 to 100, incrementing by 1/1001 – Jordo82 Oct 25 '18 at 20:34
Yes, that products float. Thanks anyway. – Olivier GSCHWIND Oct 25 '18 at 20:44

score 1 · Answer 2 · answered Oct 25 '18 at 20:27

1

You could just use:

test <- rep(1:100, each = 1000)

answered Oct 25 '18 at 20:27

SmitM

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Thanks SmitM. It works. – Olivier GSCHWIND Oct 25 '18 at 20:43

score 0 · Answer 3 · answered Oct 25 '18 at 20:26

0

What you need is replicate and not sequence:

replicate(10, c(1,2,3))

will generate 10 sequences of {1,2,3}:

     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,]    1    1    1    1    1    1    1    1    1     1
[2,]    2    2    2    2    2    2    2    2    2     2
[3,]    3    3    3    3    3    3    3    3    3     3

In your case, you would need:

replicate(1000, seq(1,100, by = 1))

answered Oct 25 '18 at 20:26

Azim

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Yes, it works. Thanks Azim. – Olivier GSCHWIND Oct 25 '18 at 20:45

make a series in R with seq

3 Answers3