How to take average of lines in Plot & Plot it as one graph?

Question

Nihar Jariwala 2021-4-18

回答： Thiago Henrique Gomes Lobato 2021-4-18

Hi Guys,

I have a graph with 140 lines, each of them having 200 points. I want to plot one line that has to be the average of 1 graph.

For Example: 1st Point = Averages of all the 1st Point of 140 lines.

2nd Point = Averages of all the 2nd Point of 140 lines.

Thanks.

Answer 1

Do you have access to the data of all those graphs as a matrix? If so you can do it in a very straight forward way:

data = randn(200,140); % Substitute by your data

dimensionContainingTheLines = 2;

averageResult = mean(data,dimensionContainingTheLines);

plot(data,'color',[0.9,0.9,0.9]); hold on

plot(averageResult,'linewidth',4);