not able to use viewArray command for partioned ARRAY

numA = 16; % number antenna element in each subarray

numS = 4; % number of subarrays in an array

sLA = phased.ULA('NumElements',numA,'Element',p,'ElementSpacing', lambda/Spacing,...

'ArrayAxis','z','Taper', hamming(8));

tPA=phased.PartitionedArray('Array',sLA,'SubarraySelection',ones(numS,numA));

rPA=phased.PartitionedArray('Array',sLA,'SubarraySelection',ones(numS/2,numA/2));

viewArray(tPA)

viewArray(rPA)

I am trying to implement a patchMicrostrip Linear array into a partitioned array.

I am able to view linear array using viewArray command but it is not working at the time of partitioned array.