CCDiff.default {BSagri} | R Documentation |
Compute contrasts of chains of joint empirical distributions. For internal use.
CCDiff.default(x, cmat)
x |
an N times K matrix with numeric entries |
cmat |
a contrast matrix with K columns |
Denote the elements of x
by x_{nk}
and denote the elements of cmat
by
c_{mk}
. Function CCDiff.default
simply calculates:
\sum_{k=1}^{K}c_{mk}x_{nk}
for each m=1,...,M and n=1,...,N. The result is a N times M matrix.
# What the function does:
# a 10 times 4 matrix
X<-round(cbind(
rnorm(10,1,1),
rnorm(10,1,1),
rnorm(10,1,1),
rnorm(10,1,1)))
# and a x times 4 contrast matrix
CMAT<-rbind(
c(-1,1,0,0),
c(-1,0,1,0),
c(-1,0,0,1)
)
CCDiff.default(x=X, cmat=CMAT)