MATLAB: Legend when plotting with while

legendlegend plotmultiple graphsplotplotting

Hey guys,
so i am trying to plot multiple variables from an excel file and I can't get around with it. What would be the best way to do this, since what I've done will never get the legend correct? Please help
clc
clear all
T = readtable('Book1.xlsx');
Time=T.DateTime;
ColumnYouNeed = input('Which variable would you like to plot: ','s');
mask = ismember(T.Properties.VariableNames,ColumnYouNeed);
NewTable = table2array(T(:,mask));
plot(Time,NewTable)
hold on
legend(ColumnYouNeed)
a=input('Would you like to plot another variable? ','s');
while a=='yes'
    ColumnYouNeed = input('Which variable would you like to plot: ','s');
    mask = ismember(T.Properties.VariableNames,ColumnYouNeed);
    NewTable = table2array(T(:,mask));
    plot(Time,NewTable)
    legend(ColumnYouNeed)
    a=input('Would you like to plot another variable? ','s'); 
end

Best Answer

This may work.
    clc
clear all
 T = readtable('Book1.xlsx');
 Time=T.DateTime;
 ColumnYouNeed = input('Which variable would you like to plot: ','s');
mask = ismember(T.Properties.VariableNames,ColumnYouNeed);
NewTable = table2array(T(:,mask));
 plot(Time,NewTable)
 hold on
 legend(ColumnYouNeed)
 a=input('Would you like to plot another variable? ','s');
cc=2;
 while a=='yes'
    ColumnYouNeed(cc) = input('Which variable would you like to plot: ','s');
    mask = ismember(T.Properties.VariableNames,ColumnYouNeed);
    NewTable = table2array(T(:,mask));
    plot(Time,NewTable)
    legend(ColumnYouNeed)
    a=input('Would you like to plot another variable? ','s'); 
 cc = cc +1;
end
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