Getting Y value for plot having 3 curves in single plot. using App designer dropdown component selecting one curve to read Y data for X data? using GUI

Hi, I am working in begginer level for creating app.

In my Problem.

I have X & Y data for three curves in plot.

Now i have to select one curve at a time and give input to Edit field (X axis Point - P10, P15, Pinfinity) to get Y value for that _ Attached

Also Attached My code : Please guide where i am wrong to get Y axis value for Selected Curve.

[naveen kumar s]

I have Attached mlapp file.

I need to find my Y axes Value for particular curve (P10, P15, P20) by giving x point on that curve.

Thanks for helping me.

[naveen kumar s]

is there any method to do this.Even without GUI method

Answer 1

[Cris LaPierre]

Use App Properties to share your data within an app. That way, you don't have to keep loading the same variables. Consider loading your mat files in the statup function.

Now just pay attention to the error messages.

Unrecognized method, property, or field 'InputXAsistocalculateYAxisEditField_2' for class
'selecting_Checking_at_point'.
 
Did you mean:
K>> app.InputXAsistocalculateYAxisEditField.Value

When I switch the drop down menu to P15 or P20, I get this error. Compare the code for these cases with the code for P10. What is different? P10 works. These don't.

Unrecognized method, property, or field 'property' for class 'matlab.ui.control.DropDown'.

Error in selecting_Checking_at_point/InputXAsistocalculateYAxisEditFieldValueChanged (line 66)
            elseif (strcmp(app.SelectForCurveDropDown.property,'P15'))
 
Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 453)
Error while evaluating NumericEditField PrivateValueChangedFcn.

As for why the values are not appearing in the Y Axis edit field, consider consulting the properties of an edit field. You should set a value using code very similar to what is used to read a value. Again, pay attention to names as well.

Unrecognized method, property, or field 'YAxisEditField_2' for class 'selecting_Checking_at_point'.

[naveen kumar s]

Thank you @Cris LaPierre

it make sence.

I will work with your inputs Will get back to you.

& is there any code for adding more cuves like (P10, P20, P30, P50, P100, ...P500) all files with variable names & size also variable of (x data,y data) in one dot.mat file.

&All P's plotting in single plot.

I should write a code to take all this once & should show in dropdown to reduce huge typing.

&

Same checking Y value at X & P (X = x axis 1st input; P = inbetween P10 & P20 any value 2nd input).

Thank you for your response.

[Cris LaPierre]

A mat file can hold more than one variable, yes. See the save command for syntax help and examples.

Where is the data coming from? I don't like using mat files to load variables into an app. Can your app create these variables itself? Or is there a data file that can be loaded?

[naveen kumar s]

No can't create variables. I have only data extracted from graph.

But any idea which code,

plotting all curves with less steps from mat file.

[Cris LaPierre]

Just the same suggestions I have shared already