App Designer - Reading Value from Edit Field at Startup

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

Answer 1

[Cris LaPierre]

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 = '1'

sr/100

ans = 0.4900