Overlapping line plots in one graph for numerous cycles

Question

Harsimran Singh 2022-4-20

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1701055-overlapping-line-plots-in-one-graph-for-numerous-cycles

回答： Cris LaPierre 2022-4-20

Newfile.xlsx

Hello Guys,

I am trying to create one graph, that contains overlapping line plots. Each line plot is corresponding to one cycle in data. There are total 5 cycles in an example data(attached). I have attached the data with expected graph which was created in excel.

Would like to know how to create a same kind of graph using Matlab.

In actual data I have 20,000 cycles, which means one graph should contains 20,000 overlapping lines.

Attached data is just an example for 5 cycles, but actual data is composed of 20,000 cycles.

Would apprecite if anyone have any suggestion for me to follow or short script/function which I can use to make required graphs

I am using Matlab R2021b, version

Please let me know if my question is not clear.

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Answer 1

Cris LaPierre 2022-4-20

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1701055-overlapping-line-plots-in-one-graph-for-numerous-cycles#answer_946970

在 MATLAB Online 中打开

Newfile.xlsx

There are likely many different ways to do this. My first instinct is to use findgroups and splitapply.

rawdata = readtable('Newfile.xlsx');

G = findgroups(rawdata.Cycle);

ax = axes;

hold(ax,'on')

myPlot = @(v) plot(ax,v,'-o');

splitapply(myPlot,rawdata.Pressure,G)

hold(ax,'off')

If you know each cycle will have the same number of points, then you could reshape the vector so each column contains a cycle, then just plot that matrix.

d = reshape(rawdata.Pressure,7,[]);

figure

plot(d,'-o')