App Designer - Reading Value from Edit Field at Startup
1 view (last 30 days)
Show older comments
I am reading a value from Edit field and performing simple computation. The computation is incorrect. Where is the error coming from? See pictures and code below.
function startupFcn(app)
%--------------------------------------------------------------------------
% Create an Ricker wavelet using Ricker function from CREWES function list
%--------------------------------------------------------------------------
% wl=wavelet length in seconds
app.sr=app.SampleIntmsEditField.Value; % The value of 1 ms is read correctly. See picture 1.
app.sr=app.sr/1000;% The computed value is 0.049 instead of 0.001 What is causing this error?
tw=app.NoOfSamplesEditField.Value;
Fs=1/sr;
wl=sr/Fs*length(tw)- (sr/Fs);%subtract one sample in sec.since the ricker fn adds one sample to time vector
[wr,tw2] = ricker2(sr/Fs,fpeak,wl);%ricker2 function also returns time vector tw2 with tw2=wl+1 sample
tw2=tw2*Fs;
end
0 Comments
Accepted Answer
Cris LaPierre
on 4 Mar 2022
Edited: Cris LaPierre
on 5 Mar 2022
Pay attention to data types. Your value of 1 is a char, not a double. You must be using a text edit field instead of a numeric edit field. Try replacing it with the Edit Field (Numeric) component and then rerun your calculation.
sr = '1'
sr/100
0 Comments
More Answers (0)
See Also
Categories
Find more on Startup and Shutdown in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!