StackedPlot with two tables with specific variables

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Bhargav 2024-2-9

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https://ww2.mathworks.cn/matlabcentral/answers/2080481-stackedplot-with-two-tables-with-specific-variables

评论： Bhargav 2024-2-9

采纳的回答： Cris LaPierre

I have two tables say table A and table B. A and B has different number of variables but the same number of rows.

following the syntax of stackedplot if I want to do a stackedplot for A

I would write something like this stackedplot(A,[''variable name 1''," [variable name 2']")

My question:

I want to have stacked plot of two tables A and B but specific variables from table A and specific variables from table B

stackedplot(A,["variable1ofA","var2ofA", "var3ofA"],B,["var1ofB","var2ofB"])

The syntax for multiple table is stackedplot(tbl1,tabl2) how do I specify which variables of each table ?

How can I achieve this ?

Thank you

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Answer 1

Cris LaPierre 2024-2-9

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在 MATLAB Online 中打开

If they have the same number of rows, I think what you would want to do is

T = [A(:,["variable1ofA","var2ofA", "var3ofA"]),B(:,["var1ofB","var2ofB"])]
stackedplot(T)

If the tables do not share the same variable names, this may work as well (untested)

stackedplot([A,B],["variable1ofA","var2ofA", "var3ofA","var1ofB","var2ofB"])

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Cris LaPierre 2024-2-9

编辑：Cris LaPierre 2024-2-9

在 MATLAB Online 中打开

For displaying min and max, if you do want to use stackedplots with multiple tables, then you will need to create a table variable that is an array, meaning one column contains the line data, the other contains the max/min data. Here's a simple example borrowing from @Star Strider's example below.

Note that if you do not specify 'XVariable', then index number is used

% Create 2 tables with a different number fo rows

x1 = (0:0.1:25).';

x2 = (0:0.2:25).';

TA = array2table([x1 sin((1:4).*2.*pi.*x1/25)]);

TB = array2table([x2 sin((5:8).*2.*pi.*x2/25)]);

% identify max/min

Var6 = nan(height(TA),1);

[mn,idn] = min(TA.Var4);

[mx,idx] = max(TA.Var4);

Var6(idn) = mn;

Var6(idx) = mx;

% Create new table variable with both the line data and the min/max points.

TA.Var6 = [TA.Var4,Var6]

TA = 251×6 table

Var1 Var2 Var3 Var4 Var5 Var6 ____ ________ ________ ________ _______ ____________________ 0 0 0 0 0 0 NaN 0.1 0.02513 0.050244 0.075327 0.10036 0.075327 NaN 0.2 0.050244 0.10036 0.15023 0.19971 0.15023 NaN 0.3 0.075327 0.15023 0.22427 0.29704 0.22427 NaN 0.4 0.10036 0.19971 0.29704 0.39137 0.29704 NaN 0.5 0.12533 0.24869 0.36812 0.48175 0.36812 NaN 0.6 0.15023 0.29704 0.43712 0.56727 0.43712 NaN 0.7 0.17502 0.34464 0.50362 0.64706 0.50362 NaN 0.8 0.19971 0.39137 0.56727 0.72031 0.56727 NaN 0.9 0.22427 0.43712 0.62769 0.78629 0.62769 NaN 1 0.24869 0.48175 0.68455 0.84433 0.68455 NaN 1.1 0.27295 0.52517 0.73751 0.89384 0.73751 NaN 1.2 0.29704 0.56727 0.78629 0.93433 0.78629 NaN 1.3 0.32094 0.60793 0.8306 0.96538 0.8306 NaN 1.4 0.34464 0.64706 0.87018 0.98669 0.87018 NaN 1.5 0.36812 0.68455 0.90483 0.99803 0.90483 NaN

s = stackedplot(TB(:,[1 2 3]), TA(:,[1 3 6]),"CombineMatchingNames",false,"XVariable",'Var1');

sLineProperties(4).PlotType = {'plot','scatter'};

s.LineProperties(4).LineStyle={'-','none'};

s.LineProperties(4).Marker={'none','o'};

s.LineProperties(4).MarkerFaceColor=[0 1 1];

s.LineProperties(4).MarkerEdgeColor=[0 1 1];

Cris LaPierre 2024-2-9

在 MATLAB Online 中打开

The 2nd syntax should work. I did have to make sure there are no shared variable names between the 2 tables, and that both tables have the same number of rows. Here's a working example.

x = (0:0.1:25).';

TA = array2table([x sin((1:4).*2.*pi.*x/25)]);

TB = array2table([x sin((5:8).*2.*pi.*x/25)]);

TB.Properties.VariableNames = ["X","Y1","Y2","Y3","Y4"];

stackedplot([TA,TB],["Var2","Var3", "Var4","Y1","Y2"])

Bhargav 2024-2-9

ah I see. I think I have one shared variable hence it was giving me a duplicated error

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StackedPlot with two tables with specific variables

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