Change Line width and Line color in findchangepts function.

I have a dataset, attached, and I am using findchangepts function to partition the data in different number of regions. I wish to control the line widht and other properties of the graph like Line style and color but I am not able to do so. Can anyone please help me with this? Thanking you in advance. My data looks like this.

[Ron]

I did forget to add the code I am using. This is my code.

findchangepts(ACc(:,2),'Statistic','mean','MaxNumChanges',2); hold on

Answer 1

[Voss]

As I interpret the question, you want to plot the data in different regions with different line properties. If that's the case, try something like this:

ACc = readmatrix('AC_1Hzcsv.csv');

idx = findchangepts(ACc(:,2),'Statistic','mean','MaxNumChanges',3)

idx = 3×1

191 194 1547

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figure
ylim([0 1])
hold on

line_widths = [2, 3, 1, 2];
line_styles = {'-', '--', ':', '-.'};
line_colors = 'rgbk';

N = size(ACc,1);
x = (1:N)/5; % /5 to match your x-scale?

idx = [1; idx; N]

idx = 5×1

1 191 194 1547 4501

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for ii = 1:numel(idx)-1
    tmp = idx(ii):idx(ii+1);
    plot(x(tmp),ACc(tmp,2), ...
        'LineWidth',line_widths(ii), ...
        'LineStyle',line_styles{ii}, ...
        'Color',line_colors(ii));
end

[Ron]

Sir thank you so much for taking out time to help me solving this issue. I will run the code and will let you know about the status soon.

[Voss]

You're welcome!

Answer 2

[Walter Roberson]

After you

findchangepts(ACc(:,2),'Statistic','mean','MaxNumChanges',2);

then do

ax = gca;

%if you want to affect the line holding the original data
ax.Children(2).LineWidth = APPROPRIATE_LINE_WIDTH;
ax.Children(2).LineStyle = APPROPRIATE_LINE_STYLE;
ax.Children(2).Color = APPROPRIATE_COLOR;

%if you want to affect the lines showing the breaks in regions
ax.Children(1).LineWidth = APPROPRIATE_LINE_WIDTH;
ax.Children(1).LineStyle = APPROPRIATE_LINE_STYLE;
ax.Children(1).Color = APPROPRIATE_COLOR;

[Ron]

Sir thank you so much for taking out time to help me solving this issue. I will run the code and will let you know about the status soon.