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labelEdgeSubPlots

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labelEdgeSubPlots

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09 Jan 2010 (Updated )

Automatically apply x and y labels to subplots only along the edges.

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Description

function H=labelEdgeSubPlots(xl,yl,onlyBottom)

  Purpose
  If all subplots have the same quantities on the x and y axes then
  there's no point labeling all of them. Often it looks neater to
  simply have y labels only on the plots along the left hand
  edge and x labels only on the plots along the bottom. This
  function does this automatically for the current figure.

  Inputs
  xl - a string specifying what to label the x axes.
  yl - a string specifying what to label the y axes.
  onlyBottom - by default this is zero and the function adds an
               x-axis to appropriate plots from the penultimate row
               if the bottom row of plots is incomplete. set
               onlyBottom to 1 to suppress this behaviour.
               * in addition: onlyBottom can be a vector of axis handles to
                    be processsed.
  Outputs
  H - a structure containing handles to the x and y axis labels

  Example
  clf
  for i=1:5
  subplot(2,3,i)
  x=[0:10]; y=1+0.01*x.^3+randn(size(x))*0.2;
  plot(x,y,'ok'), xlabel('will be removed')
  end

  H=labelEdgeSubPlots('beer [pints]','faux pas');
  %or:
  H=labelEdgeSubPlots('beer [pints]','faux pas',1);
  %One can also do:
  set(H.xlabels,'color','red','fontweight','bold')

  %proccess only some subplots
  ax=[];
  for i=1:25
  subplot(5,5,i), box on
  if mod(i,5)==1, ax=[gca,ax]; end
  end
  labelEdgeSubPlots('X','Y',ax);

  Rob Campbell - January 2009

MATLAB release MATLAB 7.8 (R2009a)
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Comments and Ratings (10)
08 May 2012 Hsuan-Chao Chiu

Ya, the problem is my data is pairwise interaction so need to do xlabel and ylabel with 'A', 'B', 'C' respectively.

pie chart need to turn axis on to show xlabel, but it will also show axis line.

set 'Xtick' to [] removes the tick, but it still preserves the black axis line.

set 'XColor' into 'w' makes line invisible, but will also make the xlabel into white.

just wanna share my current finding.

And very useful code
rate it now :)

08 May 2012 Rob Campbell

I hadn't thought of pie charts since they don't have x and y axes. I think pie charts might require a more customised solution.

08 May 2012 Hsuan-Chao Chiu

Dear Rob,

This is excellent, but how do I make it work on pie chart?

Angus

21 Dec 2011 sharsad

Great function! thanks

13 Jul 2011 Yuri K

Nice function. Thanks!

15 Jun 2010 GERMÁN

thank you very much!!!!

15 Jun 2010 Rob Campbell

Easy:
H=labelEdgeSubPlots('X','WALL');
set(H.ylabels(1),'String','CENTRE')

15 Jun 2010 GERMÁN

yes, I mean different rows should have different y labels. I have two rows and six columns.The top row has the name of "wall", the bottom row has the name of "center."
I like that "wall" and "center" appear only in the first colunma (ylabel).

if i<12 && mod(i,2)==1
subplot(2,6,(i/2+0.5));
loglog(freq([1:longi(i)],i),power([1:longi(i)],i),'b-'...
,freq([1:longi(i)],i),powerfit([1:longi(i)],i),'k-');
L2 = ['h = ' num2str(-B) ' m'];
L3 = ['m = ' num2str(a1,3)];
title({L2;L3},'FontSize',8);
elseif i>=12 && mod(i,2)==0
subplot(2,6,(i/2+1));
loglog(freq([1:longi(i)],i),power([1:longi(i)],i),'b-'...
,freq([1:longi(i)],i),powerfit([1:longi(i)],i),'k-');
L3 = ['m = ' num2str(a1,3)];
title({L3},'FontSize',8);
end

Best regards,

15 Jun 2010 Rob Campbell

Top and bottom of what? Do you mean different rows should have different y labels? If so, that is beyond the scope of this function because different people will have different requirements. However, I the function returns the handles to the x and y labels. It would be trivial for you to use those handles to further modify your sub-plots as desired. I think this is the "correct" way to do things.

15 Jun 2010 GERMÁN

Dear Rob

how would be the case: ylabel different in top and bottom in the subplot??

Updates
12 Jan 2010

Now skips axes which are Matlab-generated legends or colorbars. Please let me know if it gets confused by other figure child elements.

12 Jan 2010

Returns label handles.
3rd input can now also be a vector of axis handles to be labeled.

22 Jan 2010

Add H1 line

11 Jul 2012

Fixed error in one of the exampled.

11 Jul 2012

And another correction to the help...

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