Same color for different subplots

I want to plot some data in two subplots. To each datum are associated two parameters, which are the ones I'd like to plot, one for each subplot. I want the subplots to have the same color for the two parameters associated to the same datum, but different from the other ones, like in the picture. How can I do that?

[Dyuman Joshi]

You can define a color array corresponding to the number of datums you have, and use indexing to access the colors while plotting the datums.

It will be better if you can attach the data you are working with, so we can provide a specific/definite solution.

[Ale_798]

Ok thanks, I understood what you mean. Then I need to define an array of 10 different colors: can you help me with that please?

[Dyuman Joshi]

"can you help me with that please?"

@Ale_798 Please check my answer below.

Answer 1

[Dyuman Joshi]

"Then I need to define an array of 10 different colors:"

Yes.

RGB colors are a 3 element vectors with values in the range [0, 1].

There are multiple ways to do that.

1 - Manually defining colors. In the method, you have the choice of choosing which colors you want to use.

color = [0 0 0;         %black
         0 0 1;         %blue
         0 1 0;         %green
         0 1 1;         %blue+green=cyan
         1 0 0;         %red
         1 0 1;         %red+blue=magenta
         1 1 0;         %rea+green=yellow
         0.5 0.5 0.5;   %gray
         0.5 0 0;       %maroon
         0 0.5 0;       %lime
         ]

color = 10×3

0 0 0 0 0 1.0000 0 1.0000 0 0 1.0000 1.0000 1.0000 0 0 1.0000 0 1.0000 1.0000 1.0000 0 0.5000 0.5000 0.5000 0.5000 0 0 0 0.5000 0

2 - Using rand and randi. Note - This method will generate colors randomly.

n = 10;
color = rand(n,3)

color = 10×3

0.0286 0.5651 0.7392 0.9416 0.7187 0.7692 0.3686 0.2638 0.6682 0.4783 0.1181 0.7678 0.0093 0.4585 0.2831 0.3646 0.6859 0.4248 0.9145 0.4302 0.2375 0.6649 0.6619 0.6372 0.1268 0.7734 0.8096 0.2958 0.6138 0.6917

color = (randi(256,n,3)-1)/255

color = 10×3

0.1882 0.6941 0.8627 0.7451 0.5529 0.5882 0.0941 0.9686 0.4392 0.9176 0.2314 0.9137 0.9294 0.3176 0.5216 0.0627 0.2314 0.5804 0.9922 0.6510 0.9059 0.6471 0.3529 0.1294 0.2667 0.1333 0.9098 0.0667 0.8510 0.0275

3 - Using in-built colormaps in MATLAB

color = hsv(n)

color = 10×3

1.0000 0 0 1.0000 0.6000 0 0.8000 1.0000 0 0.2000 1.0000 0 0 1.0000 0.4000 0 1.0000 1.0000 0 0.4000 1.0000 0.2000 0 1.0000 0.8000 0 1.0000 1.0000 0 0.6000

You can check out the available colormaps here - https://in.mathworks.com/help/matlab/ref/colormap.html?s_tid=doc_ta#buc3wsn-1-map