Barweb in 2014b doesn't work any more

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Rainer 2014-10-16

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评论： Oleg Komarov 2015-1-3

One of my favorite community functions barweb not longer works with 2014b due to the change in the way figure handles are referenced. Are there any barweb users out there that managed to tweak the barweb.m file to make it work?

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Oleg Komarov 2015-1-3

Using bar() together with errorbar() is an option since R2012b.

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Answer 1

Robert Cumming 2014-10-17

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在 MATLAB Online 中打开

The problem with this function is that it is failing on getting the X position of each bar - so that the errorbar can be placed on the middle of the bar.

The error actually occurs on:

x=get(get(handles.bars(i),'children'), 'xdata');

In HG1 this line was getting the X position of the patch. The bar is no longer a patch so you need to get the x position another way.

If you update the if statement to the following:

 % Plot erros
 for i = 1:numbars
   if ~verLessThan('matlab', '8.4') % HG2
     x =  handles.bars(i).XData + handles.bars(i).XOffset;
   else
     x =get(get(handles.bars(i),'children'), 'xdata');
     x = mean(x([1 3],:));
   end
   handles.errors(i) = errorbar(x, barvalues(:,i), errors(:,i), 'k', 'linestyle', 'none', 'linewidth', 2);
   ymax = max([ymax; barvalues(:,i)+errors(:,i)]);
end

It works for a "trivial" example. I didn't check for passing in anymore than 2 inputs.

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Robert Cumming 2014-10-17

XOffset is a hidden property which details the position of the bar relative to the XData.

You can use this FEX to inspect these other properties.

Rainer 2014-10-17

Thank you Robert.

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Answer 2

Sean de Wolski 2014-10-16

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It looks like there are a few things in the legend call that need to change. The legend is no longer an axes so that is no longer a valid check.

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Rainer 2014-10-17

This is what i get.

---- >> barweb([3,3,3],[1,1,1])

Index exceeds matrix dimensions.

Error in barweb (line 153) x = mean(x([1 3],:));

----

The offending line is actually

handles.bars = bar(barvalues, width,'edgecolor','k', 'linewidth', 2);

(x is derived from handles.bars)

In 2014a, handles.bars would have been a double value but now it is a structure and for the life of me i can't find any field in the structure that corresponds to the old handles.bars value.

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