MATLAB: Error in the code :Input must be cell arrays of strings

cell arrays

prompt{1}='Enter Movie Rating :';
prompt{2}='Enter Revenue  :'; 
name='Prediction';
ans{1}=inputdlg(prompt{1},name);
ans{2}=inputdlg(prompt{2},name);
x =(ans{1});
y =(ans{2});
a=xlsread('inputdata.xlsx');
disp(a);
output=a(ismember(a(:,1:2),[x y],'rows'),3);
disp(output);
inputdata.xlsx contents
0.1  0.3  0.1
0.1  0.4  0.2
0.1  0.5  0.2
0.1  0.6  0.2
0.1  0.7  0.3
0.1  0.8  0.3
0.2  0.1  0.1
0.2  0.2  0.2
0.2  0.3  0.2
0.2  0.4  0.2
0.2  0.5  0.3
0.2  0.6  0.3
0.2  0.7  0.3
0.2  0.8  0.4
0.3  0.1  0.1
0.3  0.2  0.2
0.3  0.3  0.2
0.3  0.4  0.3
0.3  0.5  0.3
0.3  0.6  0.3
Error message is : Input must be cell arrays of strings.

Best Answer

When you use inputdlg the result is a cell, then use
x=str2double(inputdlg(prompt{1},name));
y=str2double(inputdlg(prompt{2},name));
Do not use ans,because it's a special variale in Matlab
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