Jitter variables in a data matrix
Jitters some variables in a data matrix.
jittervar(x,jitterv=NULL,factor=1)
x |
data matrix or data frame. |
jitterv |
vector of numbers of variables to be jittered. |
factor |
numeric. Passed on to |
data matrix or data frame with jittered variables.
set.seed(776655) v1 <- rnorm(20) v2 <- rnorm(20) d1 <- sample(1:5,20,replace=TRUE) d2 <- sample(1:4,20,replace=TRUE) ldata <- cbind(v1,v2,d1,d2) jv <- jittervar(ldata,jitterv=3:4)
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