MATLAB figure/plot display issue

plotting histograms or error bars for example, the bin divisions (the border to the bins) does not display, neither do for example error bars on a series of points plotted, yet if I copy the figure into say word or powerpoint, they are definitely there - even in the editor they do not show correctly even though they seem to be enabled.

anyone had this problem or no of a possible cause/solution? thank you in advance! (R2015a)

[dpb]

Show us what you've done and attach a figure with comment of what you expect but don't get. Oh, and with the new graphics engine, the Matlab release would be good to know.

[Yale Brewer]

dpb, R2015a is the release as mentioned in the question. please also see my response to Muhammad Usman Saleem below

Answer 1

[Muhammad Usman Saleem]

%# random data
a = [(1:30)' rand(30,1)];                %'#

%# compute edges (evenly divide range into bins)
nBins = 10;
edges = linspace(min(a(:,2)), max(a(:,2)), nBins+1);

%# compute center of bins (used as x-coord for labels)
bins = ( edges(1:end-1) + edges(2:end) ) / 2;

%# histc
[counts,binIdx] = histc(a(:,2), edges);
counts(end-1) = sum(counts(end-1:end));  %# combine last two bins
counts(end) = [];                        %# 
binIdx(binIdx==nBins+1) = nBins;         %# also fix the last bin index

%# plot histogram
bar(edges(1:end-1), counts, 'histc')
%#bar(bins, counts, 'hist')              %# same thing
ylabel('Count'), xlabel('Bins')

%# format the axis
set(gca, 'FontSize',9, ...
    'XLim',[edges(1) edges(end)], ...    %# set x-limit to edges
    'YLim',[0 2*max(counts)], ...        %# expand ylimit to accommodate labels
    'XTick',edges, ...                   %# set xticks  on the bin edges
    'XTickLabel',num2str(edges','%.2f')) %'# round to 2-digits

%# add the labels, vertically aligned on top of the bars
hTxt = zeros(nBins,1);                   %# store the handles
for b=1:nBins
    hTxt(b) = text(bins(b), counts(b)+0.25, num2str(a(b==binIdx,1)), ...
        'FontWeight','bold', 'FontSize',8, 'EdgeColor','red', ...
        'VerticalAlignment','bottom', 'HorizontalAlignment','center');
end

%# set the y-limit according to the extent of the text
extnt = cell2mat( get(hTxt,'Extent') );
mx = max( extnt(:,2)+extnt(:,4) );       %# bottom+height
ylim([0 mx]);

I hope you are looking for this:

[Yale Brewer]

this gives what I am looking for, however is rather long-winded - I have been using the histogram(data) function, which appears like this

but when it is copied, (edit -> copy figure) and pasted into word or similar it appears like this, with the bar divisions visible. This is just straight plotting - I can change the division color, and it will copy with the correct color, but still fail to display the change in the figure window.

[Muhammad Usman Saleem]

ok . then save histrogram figure in tiff file format and then copy it into world. This will save quality of the matlab image.

[Muhammad Usman Saleem]

if you resolve the problem then please accept my answer . thanks

[Yale Brewer]

yes if I save the file or copy it, the lines miraculously appear, but it is impossible to tell how a figure looks before you export it - another example would be the errorbar function which exhibits the same issue!

it unfortunately does not resolve the issue - I want to be able to see the lines within the figure window

[Muhammad Usman Saleem]

do not copy this image only save as in the tiff file format and see

[Yale Brewer]

yes saving as tiff still produces the lines, it is a problem within matlab or access to hardware I can't quite fathom i.e. the figure window does not render the output correctly

[dpb]

One thing to try with these kinds of issues is to change the 'renderer' property for the figure and see if that makes a difference.

You can also see if there is an updated driver for the particular graphics card from the vendor; on the rare occasion that has helped here (altho it's been years since that was such an issue it seems as in days of yore).

I'd suggest this may be a fignewton of the new graphics engine; submit the problem with sample code to official support at www.mathworks.com I don't have the later versions (not enough memory/horsepower) so can't check out anything w/ HG2 directly.

[Muhammad Usman Saleem]

please accept my answer if you understand the problem .Regards