i want use multi layer Perceptron not using nntool using this code

[inputfilename, filePath] = uigetfile({'*.slx';'*.xls';'*.xlsx'},'Select File ');     % check if file selected if isequal([inputfilename,filePath],[0,0]) errordlg('No File selected','File Error'); return % load the file else inputfilename= fullfile(filePath,inputfilename); % cehek if the file is excel formate if isempty(xlsfinfo(inputfilename)) errordlg('Excel Filename must be specified'); return else %input = [[0; 0] [0; 1] [1; 0] [1; 1]]; %output = [0 1 1 0]; sheet = 1; input = xlsread(inputfilename,sheet); sheet = 2; output = xlsread(inputfilename,sheet); net = newff(input,output, [5,1], {'tansig','purelin'},'traingd'); net.trainParam.show = 50; % The result is shown at every 50th iteration (epoch) net.trainParam.lr = 0.05; % Learning rate used in some gradient schemes net.trainParam.epochs =1000; % Max number of iterations net.trainParam.goal = 1e-3; % Error tolerance; stopping criterion %Train network net1 = train(net, input, output); end end ==================================================================== i read data from excel and have 2 sheet one as input(2 column) and the other as output(one column) but i get this error : *Inputs and targets have different numbers of samples.* but if i read the data from workspace like : input = [[0; 0] [0; 1] [1; 0] [1; 1]]; output = [0 1 1 0]; it work fine how i can resolve this and thanks in advance i want read data from excel and call Multi layer Perceptron