How to plot multiple y axes using function that is compatible with R2018b?

Hi,

I am trying to plot 4 different data sets of different scales. I know plotyy can plot 2 y-axes but I need to plot 4 axes. I have also tried plotyn.m, addaxis6.m and few more but they are not compatible with R2018b. They are giving errors. Would anyone please receommend something that's compatible with R2018b?

Answer 1

[Mark Sherstan]

Check out the file exchange. For example this works: https://www.mathworks.com/matlabcentral/fileexchange/67349-plot-with-multiple-y-axes. You could also consider normalizing your data.

[VR]

I will definitely look into the file. I'm curious to know how to normalise the data if the maximum of the data is, for example, 35*10^4, 5000, 5, and 0.5 respectively.

[Mark Sherstan]

You could loop through the 4 different data sets but this should put you on the right path:

A = randi(100,[10,10]); % Some random matrix of postive integers

maxVal = max(A(:)); % Get the largest value

B = A./ maxVal % Divide each element by max value (normalize between 0 and 1)

[VR]

The file you suggested worked well. A few questions:

(1) How can I rotate the labels of y-axes?

(2) Is it possible to reduce the space between the y-axes bars to make the plot smaller?

(3) Is it possible to change the thickness of the border of the box and of the additional y-axes?

I also tried the normalization. It was not appropriate for my problem because most of the data was either close to 1 or close to 0. So there was a huge difference. I am not sure if there is a way out.

[Mark Sherstan]

In the directory where you saved the file exchange function run:

help plotNy

You will get a list of arguments for customizing the plots. If the options you want arent there I would reccomend checking out a different user made function.