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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回答(1 个)
Stephane Dauvillier
2022-9-19
Hi you should use x and y in the plot command:
plot(app.UIAxes,x,y)
4 个评论
Steven Lord
2022-9-19
- 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
2022-9-20
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])
另请参阅
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