checkNegValueDS.Rd
this function is only called by the client function ds.glm
.
checkNegValueDS(weights)
a boolean; TRUE if the vector has one or more negative values and FALSE otherwise
if a user sets the parameter 'weights' on the client site function ds.glm
this
server side function is called to verify that the 'weights' vector does not have negative values
because no negative are allowed in weights.