# How to make a surface plot with colors for three variables

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Joel Schelander on 24 Apr 2021
Edited: Joel Schelander on 25 Apr 2021
I want to plot how the increase in power demand AAG of households relates to the number of inhabitants AAI. I have 36 houses and investigates the increase for the combinations of 1,2,3...36 houses (y)
I have tried making plots, but the only thing I can come up with is scatter plots, but then the number of households. Since I combine 2,3,4... 36 households I will have 36 scatter plots if I do like this
but I want one 2D surface plot with colors. Inserted the data for 1 and 2 households to make things more clear.
for y=1:2
xx=cell(length(AAG{y}),1);
I=cell(length(AAG{y}),1);
for o=1:length(AAG{y})
xx{o} =AAG{y}{o};
I{o}=AAI{y}(o);
end
for k1 = 1:length(AAG{y})
scatter(ones(1,numel(xx{k1}))*y, xx{k1},ones(1,numel(xx{k1}))*I{k1},'s','Linewidth',10)
end
end
colormap(parula(100));
colorbar;
h=colorbar;
ylabel(h, 'Number of inhabitants')
caxis([2 10])
ylim([0 20])
xlim([0 3])
xlabel('Nr of households being combined')
ylabel('Increase in rated power')
Jan on 25 Apr 2021
Edited: Jan on 25 Apr 2021
% Replace:
xx=cell(length(AAG{y}),1);
I=cell(length(AAG{y}),1);
for o=1:length(AAG{y})
xx{o} =AAG{y}{o};
I{o}=AAI{y}(o); % Do you really want a nested cell?
end
% by:
xx = AGG{y};
I = AAI{y};
The actual question is still not getting clear.

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