How to extract values from tables in the workspace and then plot them in a specific way

Question

Vladislav Mukhin 2018-2-19

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/383578-how-to-extract-values-from-tables-in-the-workspace-and-then-plot-them-in-a-specific-way

评论： Vladislav Mukhin 2018-2-22

采纳的回答： Are Mjaavatten

Hi everyone,

I am a relatively inexperienced user of MATLAB, so sorry if this is an obvious question.

Problem:

I have 3 16x8 tables in the workspace. Tables represent recordings from different conditions of muscle, and values in the tables are forces at specific point in muscle.

For example: row 1 column 1 values of Table 1 and Table 2 and Table 3 represent force in the same place in a muscle, just with different conditions. These conditions affect the force value in one way or the other.

I would like to plot these points in this way: Y-axis would be the force values, and X-axis value will be "20" for values taken from Table1, "30" for values from Table2, and "40" for values from Table3. So my output should be 16*8=128 scatter plots with 3 points in each.

Questions:

1. My first question would be how to plot values in this way? How do I set specific x-axis values opposing each row/column value from the table?

2. Answer to question 1 would allow me to do all of this "by hand", but how do I automate plotting these 128 scatter plots?

Thanks a lot!

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Peter Perkins 2018-2-21

Vladislav, without meaning to tell you about your own data, this seems like a funny way to plot them. Have you considered making a 3-D scatter plot (force vs. x and y) with color to distinguish the three cases?

Or maybe 8 plots of force vs. X with symbols to distinguish the three cases?

Vladislav Mukhin 2018-2-22

Hi Peter,

Yeah it is a funny way, but I had to do it this way. No worries though, thanks to Are’s response I managed to figure it out! Thanks for your advice.

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Answer 1

Are Mjaavatten 2018-2-20

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/383578-how-to-extract-values-from-tables-in-the-workspace-and-then-plot-them-in-a-specific-way#answer_306116

在 MATLAB Online 中打开

Is this what you want?

x = [20,30,40];

for i = 1:16;
    for j = 1:8;
        figure;
        plot(x,[Table1(i,j),Table2(i,j),Table3(i,j)],'*');
        title(sprintf('i = %d, j = %d',i,j));
    end
end