Error plotting invalid second data argument

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Eliah Verbeemen 2018-5-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/402507-error-plotting-invalid-second-data-argument

评论： Maria 2018-5-25

I like to make 2 PLOTS, but I getan error messages. I use the same x-values, a cell array I have made PLOTS with hese values earlier. The problem are caused by the Y values. The PLOTs (called real) gives the error Invalid second data argument. Although i used the same code the Y-values dont look the same. the values TC, TC2 and sf/IR are

if true
  % code
TC = cell2mat(TC);
TC2 = cell2mat(TC2);
SF = cell2mat(SF);
for U = 1:b
temperatuurreal{1,U}(1:TC(1,U),1)=celldata{1,U}(1:TC(1,U),6);
temperatuurreal{1,U}(TC(1,U)+1:TC(1,U)+SF(1,U),1)=celldata{1,U}(TC(1,U)+1:TC(1,U)+SF(1,U),8);
temperatuurreal{1,U}(TC(1,U)+SF(1,U)+1:TC(1,U)+SF(1,U)+TC2(1,U),1)=celldata{1,U}(TC(1,U)+SF(1,U)+1:TC(1,U)+SF(1,U)+TC2(1,U),6);
temperatuurset{1,U}(1:TC(1,U),1)=celldata{1,U}(1:TC(1,U),5);
temperatuurset{1,U}(TC(1,U)+1:TC(1,U)+SF(1,U),1)=celldata{1,U}(TC(1,U)+1:TC(1,U)+SF(1,U),7);
temperatuurset{1,U}(TC(1,U)+SF(1,U)+1:TC(1,U)+SF(1,U)+TC2(1,U),1)=celldata{1,U}(TC(1,U)+SF(1,U)+1:TC(1,U)+SF(1,U)+TC2(1,U),5);
end
laatste=b;
%axis([tMin tMax 0.5 2.2]);
while laatste > 0        
figure('Name','setpoint and real')
%plot(x{1,b}(:,1),temperatuurreal{1,b}(:,1))
hold on
plot(x{1,b}(:,1),temperatuurset{1,b}(:,1))
title('setpointenreal')
xlabel('tijd(s)')
ylabel('temperatuur(C)')
legend(num(1,1:b))
b=b-1;
end
end