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Repeat matrices

2 messages · roslinazairimah zakaria, Ivan Calandra

#
Dear r-users,

I have a set of numbers that I would like to repeat for let say 10 times
and each number is repeated by vertically.

I tried this:

a <-  c(5.78, 5.79,5.86)
tran_a <- t(matrix(rep.int(a, 10),3))
dput(tran_a)

structure(c(5.78, 5.78, 5.78, 5.78, 5.78, 5.78, 5.78, 5.78, 5.78,
5.78, 5.79, 5.79, 5.79, 5.79, 5.79, 5.79, 5.79, 5.79, 5.79, 5.79,
5.86, 5.86, 5.86, 5.86, 5.86, 5.86, 5.86, 5.86, 5.86, 5.86), .Dim = c(10L,
3L))

Or is there any smarter way?

Best regards,
#
Not sure it would be any smarter, but what about:

a <- c(5.78, 5.79,5.86)
n <- 10
matrix(rep(a,each=n), nrow=n)

That way, it would be easy to build a function with 'a' and 'n' as 
arguments.

HTH,
Ivan

--
Ivan Calandra, PhD
Scientific Mediator
University of Reims Champagne-Ardenne
GEGENAA - EA 3795
CREA - 2 esplanade Roland Garros
51100 Reims, France
+33(0)3 26 77 36 89
ivan.calandra at univ-reims.fr
--
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Le 01/08/2016 ? 11:27, roslinazairimah zakaria a ?crit :