Produces a new matrix with new resolution
cgr.res(data, res)
CGR object
new resolution
This function adjust the resolution of the FCGR of a CGR object.
matrix: frequency matrix with new given resolution
x: x-coordinates for the CGR
y: y-coordinates for the CGR
sf: applied scaling factor for the CGR
res: applied resolution to calculate the FCGR
base.seq: chars or letters to build the edges of the CGR