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From: Christopher Hummersone on 9 Sep 2009 11:12
Sorry, my bad, I only skim-read. What about using eval?

Chris
From: Steven Lord on 9 Sep 2009 13:00

"ImageAnalyst" <imageanalyst(a)mailinator.com> wrote in message
news:d0dea7e2-a6c0-4115-829b-d7192b8901fc(a)p10g2000prm.googlegroups.com...
> On Sep 9, 10:44 am, "qooroo " <qooro...(a)gmailDOT.comREMOVECAPS> wrote:
> > ImageAnalyst <imageanal...(a)mailinator.com> wrote in message
> > <ed3aa391-7ff3-4709-9c8b-7194af86a...(a)r9g2000yqa.googlegroups.com>...
> > > You'd think. But no. Here's my code from R2009b prerelease to test
> > > what you suggested:
> >
> > > %=====================================================================
> > > function edtRegion1_Callback(hObject, eventdata, handles)
> > > % hObject handle to edtRegion1 (see GCBO)
> > > % eventdata reserved - to be defined in a future version of MATLAB
> > > % handles structure with handles and user data (see GUIDATA)
> > > % Hints: get(hObject,'String') returns contents of edtRegion1 as text
> > > % str2double(get(hObject,'String')) returns contents of
> > > edtRegion1 as a double
> > > strRegionName = get(hObject,'String');
> > > caRegionName = get(handles.edtRegion1, 'string');
> >
> > > When I check strRegionName and caRegionName in the workspace, guess
> > > what?
> > > It says they're both 1 by 1 cell arrays.
> > > -ImageAnalyst
> >
> > that's terrifying. and would make quite a few of my guis bad. just for
> > example string concatenation,
> >
> > strRegionName = get(hObject,'String');
> > strFull = [strRegionName '_please let me be one string']
> >
> > would give a 1x2 cell, not a complete string. surely it's a bug?
> >
> > -qooroo-
>
> ------------------------------------------------------------------------------------------------------------------------------------------
> Even the Mathworks tech support folks were surprised. They're the
> ones who told me to use iscell() workaround to check so that it would
> work for any version. I'll send it in as a bug report. But with my
> license lasting only about 20 days, the new release is about to come
> out within that time I imagine, so I'm not sure it will make it in if
> they don't already know about it. I notified them of another bug a
> couple of weeks ago and they said that they couldn't fix it in time.

If by "the new release" you mean release R2009b, it's already out; it was
released last Friday.

http://www.mathworks.com/products/new_products/latest_features.html

If by "the new release" you mean release R2010a, it's due out sometime in
the spring.

> What you said was right (I think Chris misunderstood). I ran your
> code in R2009b and verfied that it is, in fact, a 1 by 2 cell and you
> do not have one long string. I am not sure why they decided to make
> this change. Unless they fix this, you'll be implementing the
> workaround like I did to have your old m-files run in the new
> version. Maybe Steve Lord has some inside info on this????
> -ImageAnalyst

I believe the concatenation behavior is is related to a change we made a
while back related to the behavior of concatenation with cell arrays and
numeric arrays. In older releases (I forget exactly when we made this
change) this code would error:

x = [{1 2 3} 1e4]

because this was treated as:

x = [{1 2 3} cell(1e4)]

which would try to create a 1e4-by-1e4 cell array and combine it with a
1-by-3 cell array. What we believed most users would expect was a 4-element
cell array whose fourth cell was {1e4}:

x = [{1 2 3} {1e4}] % or x = {1 2 3 1e4}

and that's what it currently does.

As for the uicontrol behavior you're seeing, I did a quick search (because
this didn't sound familiar) and I think you may be experiencing the problem
described in bug report 250127:

http://www.mathworks.com/support/bugreports/250127

If you're still communicating with Technical Support about this issue, ask
them to speak to the developers working on that bug report.

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ


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