peterTorrione
commented
10 years ago Hi Luster!
First off - thanks very much for your comment and feedback - we hope you're finding the PRT useful!
Rotating tick labels is a major nightmare in MATLAB (I worked on one of the original tech-support provided rotate tick-label functions when I was at TMW, and it was a pain.)
As you've noticed, if MATLAB used text objects and gave us handles to them, this would be easier. I'm hesitant to change the default behavior of the confusion matrix plotting to do anything even a little out of the ordinary - we're basically waiting for TMW to finally make the jump into true OO handle graphics before we really fight any additional low-level graphics things (there's a bunch of undocumented evidence that this change is coming soon; google around to find it).
However, the power of transferring from the xticklabel to handles pointing to the text seems easy to implement, and useful. So we added a new function: prtUtilConvertXtickLabelsToObjets. This takes the xticklabels from the current axis, turns them into text objects, and provides handles to them. For example:
ds = prtDataGenMarysSimpleSixClass;
c = prtClassKnn + prtDecisionMap;
yOut = c.kfolds(ds,10);
prtScoreConfusionMatrix(yOut)
h = prtUtilConvertXtickLabelsToObjets;
set(h,'rotation',20); %You'll need to adjust the positions of all the
% xTickLabels, xlabels, etc.Note that we aren't working on making sure the new text doesn't overlap anything else, or cover up the xlabel - that's up to the user. But for now, the utility function prtUtilConvertXtickLabelsToObjets should get you 90% of the way to where you want to be.
Let us know if this helps, and of course, let us know if you have any other issues, questions, or suggestions.
When the class names are too long, running prtScoreConfusionMatrix causes the x-axis class labels to overlap. Tried using this, but it's kind of a hack. The text also appears distorted unless rotating either 90 or 270 degrees. Tried looking into prtUtilPlotConfusionMatrix and prtScoreConfusionMatrix, but it seems the labels are set as XTickLabels, so a handle is never set for them. If the x-axis class labels were set as text objects, they would have handles so that you could rotate them properly.