Plot starts at 1
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Hello everyone,
I have a plot what starts at one instead of zero.
Can someone tell me were my fail is?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1129115/image.png)
B=app.BEditField.Value;
C=app.CEditField.Value;
D=app.DEditField.Value;
E=app.EEditField.Value;
x = linspace(0,pi,100);
y=D*sin(C*atan(B*x-E*(B*x-atan(B*x))));
plot(app.UIAxes,y);
app.UIAxes.YLim = [-0.2 (D+0.2)];
app.UIAxes.XLim = [-10 100];
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Answers (1)
Stephane Dauvillier
on 19 Sep 2022
Hi you should use x and y in the plot command:
plot(app.UIAxes,x,y)
4 Comments
Steven Lord
on 19 Sep 2022
- If Y is a vector, the x-coordinates range from 1 to length(Y).
- If Y is a matrix, the plot contains one line for each column in Y. The x-coordinates range from 1 to the number of rows in Y."
In this case, app.UIAxes is not X data (which would cause MATLAB to use the plot(x, y) syntax.) It is recognized as an axes so the first syntax in Additional Options is used, then the remaining input is interpreted as Y data using the syntax above.
Stephane Dauvillier
on 20 Sep 2022
your plot with x is the right one.The limits of the axes are not what you want but the data are well drawed.
ANd you can use the function below to set the limit of axes
xlim(app.UIAxes,[-10,100])
ylim(app.UIAxes,[-0.2,0.2+D])
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