repeating a dataframe n times in the direction of the rows
Wolfram Fischer <wolfram at fischer-zim.ch> writes:
Question:
How can a repeat a dataframe n times
in the direction of the rows?
(Or: How I can rbind a dataframe n times ?)
Example Data:
x <- data.frame( alpha=letters[1:3], num=1:3 )
n <- 4
Complicated solution: To rbind a dataframe n times I can program a loop:
xr <- x
for( i in 2:n ) xr <- rbind( xr, n )
Observation: To cbind a dataframe n times I can use rep:
xc <- data.frame( rep( x, n ) )
Is there a similar possibility to repeat in the direction of the rows?
How about x[rep(1:nrow(x),n),] ?
O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._