How to add multiple y-axis in Matlab?

Create axes with a y-axis on both the left and right sides. Plot a set of data against the left y-axis. Then, use yyaxis right to activate the right side so that subsequent graphics functions target it. Plot a second set of data against the right y-axis and set the limits for the right y-axis .

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plot3( X , Y , Z , LineSpec ) creates the plot using the specified line style, marker, and color. plot3( X 1, Y 1, Z 1,..., X n, Y n, Z n) plots multiple sets of coordinates on the same set of axes. Use this syntax as an alternative to specifying multiple sets as matrices.

How to add two legends in Matlab?

Direct link to this answer t = 0:0.1:5; y = sin(t); z = cos(t); figure; hold on; for i = 1:2. p1(i) = plot(t, y,'r'); p2(i) = plot(t, z,'b'); end. More items... Feb 22, 2023

How to have two y labels in Matlab?

Add a second y-axis to an existing chart using yyaxis . The existing plots and the left y-axis do not change colors. The right y-axis uses the next color in the axes color order. New plots added to the axes use the same color as the corresponding y-axis.

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A basic “color plot”" displays the values of three variables at a time using colored symbols, where the value of one variable determines the relative position of the symbol along the X-axis and the value of a second variable determines the relative position of the symbol along the Y-axis, and the value of the third ...

How do you add an XY axis in Matlab?

Direct link to this answer xL = xlim; yL = ylim; line([0 0], yL); %x-axis. line(xL, [0 0]); %y-axis. Jun 12, 2012

How do you make a two column legend in MATLAB?

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On the "map" visual you are only able to add one legend which is a color legend . Often times you need two legends. Several other BI tools like Tableau provide the option to have a legend based on "Shapes" and a legend based on "color".

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To add a legend title, set the String property of the legend text object. To change the title appearance, such as the font style or color, set legend text properties . For a list, see Text Properties. plot(rand(3)); lgd = legend('line 1','line 2','line 3'); lgd.

What is the Yyaxis function in MATLAB?

The yyaxis function creates an Axes object with a y-axis on the left and right sides . Axes properties related to the y-axis have two values. However, MATLAB ® gives access only to the value for the active side.

How do you add two Y axis in numbers?

If you want a line graph with 2 y-axes. You to insert->Chart-> 2-Axis . Put in your data. One of the sets will be a line the others a bar.

How do I add multiple Y axis in sheets?

Add a second Y-axis On your computer, open a spreadsheet in Google Sheets. Double-click the chart you want to change. At the right, click Customize. Click Series. Optional: Next to "Apply to," choose the data series you want to appear on the right axis. Under "Axis," choose Right axis. More items...

How do you make multiple graphs appear in Matlab?

Accepted Answer If you want to display all plots in the same figure, utilize 'hold on. ' For multiple sub-figures, consider using the 'subplot' function.

legend with multiple axes using yyaxis (2024)

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nathan blanc on 2 Jan 2021

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Commented: Star Strider on 3 Feb 2023

Accepted Answer: Star Strider

I am creating a plot with two different y axes. the curves are added alternately. for example:

yyaxis left

plot(A)

yyaxis right

plot(B)

yyaxis left

plot(C)

yyaxis right

plot(D)

My problem is that when I add a legend to the plot, the order of the curves is not the order in which they were created. instead, they are ordered first by the left axis

and then by the right axis. meaning if i write down "legend(A,B,C,D)" the legend entry B will correspond with the curve C and vice-versa. is there a way to fix this? The actual case there are more than 4 curves, and the number changes every time, so manual changing is not possible. many thanks in advance

Nathan

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Accepted Answer

Star Strider on 2 Jan 2021

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Edited: Star Strider on 2 Jan 2021

Open in MATLAB Online

Try this:

A = rand(1,10);

B = rand(1,15);

C = rand(1,20);

D = rand(1,30);

figure

hold on

yyaxis left

ha = plot(A);

yyaxis right

hb = plot(B);

yyaxis left

hc = plot(C);

yyaxis right

hd = plot(D);

hold off

legend([ha,hb,hc,hd], 'A','B','C','D')

Alternatively:

figure

yyaxis left

ha = plot(A);

hold on

hc = plot(C);

hold off

yyaxis right

hb = plot(B);

hold on

hd = plot(D);

hold off

legend([ha,hb,hc,hd], 'A','B','C','D')

Using hold is the only way to do what you want. This cannot be used with your posted code, because without the hold function, the second calls to yyaxis left and yyaxis right calls eliminate the handles to the previously plotted curves.

EDIT — (2 Jan 2021 at 17:41)

Added alternative code.

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nathan blanc on 2 Jan 2021

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Thank you Star. I didn't quite understand why you kept holding on and off in your code, but the naming of the plots and addition to the legend command solved my problem

Nathan

Star Strider on 2 Jan 2021

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As always, my pleasure!

The hold function permits subsequent plots on the same axes, and that is necessary here. (I thought that I already posted a link to that function, however I now realise that did not, and have now corrected that. My apologies for the oversight.)

Giovanni Bambini on 2 Feb 2023

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Open in MATLAB Online

Ran in:

ha and hb are each 2 bar objects, as shown below. Therefore, [ha hb] is four bar objects. You can use just the first element of each ha and hb for the legend, [ha(1) hb(1)]

A = [rand(10,1) zeros(10,1)];

B = [zeros(10,1) rand(10,1)];

figure;

yyaxis left

ha = bar(A, 'FaceColor', '#0000FF')

ha =

1×2 Bar array: Bar Bar

set(findobj(gcf,'type','axes'), 'ycolor', '#0000FF');

yyaxis right

hb = bar(B, 'FaceColor', '#00BCFF')

hb =

1×2 Bar array: Bar Bar

set(findobj(gcf,'type','axes'), 'ycolor', '#00BCFF');

legend([ha(1) hb(1)], 'h1', 'h2');

Giovanni Bambini on 3 Feb 2023

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Thanks!!!!

Star Strider on 3 Feb 2023

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My pleasure!

A Vote would be appreciated!

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