Specifiy the indices to compare.compareIdx = 1:N;
bode(...
sysLoop (:,:,compareIdx),...
sysBatch (:,:,compareIdx),...
sysFastRestartLoop (:,:,compareIdx),...
sysFastRestartBatch(:,:,compareIdx));
legend(...
'Loop Linearization' ,...
'Batch Linearization' ,...
'Loop Linearization with Fast Restart',...
'Batch Linearization with Fast Restart')3 Batch Linearization