convert rdm and name to struct array form
function for splitting model RDMs. Used for multirsa
all pairwise contrasts in struct form for roidata_rfx
renamed crossvalidateconditions to cvpredictconditions for consistency with cvpredictruns. Similarly, change to return median rather than mean
handle edge cas of n=1
return in struct form if that was the input format
added single subject plot
more flexible argument handling to support crossvalidated r2 and other custom fit method