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Plot 3 variables on 2D plot

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Joel Schelander
Joel Schelander on 23 Apr 2021
Answered: Raghava S N on 20 Feb 2024
I have three variables that are stored like this:
The growth in rated power when adding EVs for the combination of 1,2,3...36 households
AAG: 36x1 cell that contains 36 1x1000 cells, every of these cells contains 1x1000 double
(This variable I want on the yaxis)
The number of households that are combined: 1-36
(This I want on the x-axis)
How many inhabitants in total the combination has
AAI: 36x1 cell containing 36 1x1000 double
(This I want represented as a color scale)

Answers (1)

Raghava S N
Raghava S N on 20 Feb 2024
Hi Joel,
The “scatter” function in MATLAB has a functionality by which you can pass a third parameter along with the x-axis and y-axis variables. This third parameter is mapped to a colour scale and the plotted x-axis and y-axis values are coloured accordingly.
This example on the documentation page of “scatter” shows the same functionality - https://in.mathworks.com/help/matlab/ref/scatter.html#:~:text=Create%20a%20scatter%20plot%20and%20vary%20the%20circle%20color.
In your use-case, you need to set the following variables like so:
“x”: The number of households that are combined.
“y”: “AAG”
“c”: “AAI”
You can then use the “colorbar” command to display the colour scale graph on your plot - https://www.mathworks.com/help/matlab/ref/colorbar.html.

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