Subplot ID in a loop where k> number of plot locations for a single page

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Stephen Devlin
Stephen Devlin 2017-4-10
评论： Jan 2017-4-11
Hi, This is a tricky one for me to explain. I have q files, and want to subplot them on a page with 4 locations. Due to considerations for how the figures/pages will be looked at in a pdf I am using a (2,4,q) subplot and plotting a distribution in (2,2,1:2) etc. It would be easier to just have (2,2,q) but they would not look so good in the final pdf.
For q being no higher than 4 I use
subplot(PlotsPerPage/2,PlotsPerPage,[q+q-1, q+q])
which works nicely. But when q>4 it falls over. I think my problem is more of a math issue than matlab but I am hoping that there will be a way to do take use of a matlab function maybe in a way I am not aware of. I can do this longhand by having if statements for when q=5:8 or q=9:12 etc but would like to avoid that as I can see q going to a very high number by the end of the year.
  2 个评论
Jan
Jan 2017-4-10
I'm confused by the question. What does "using a (2,4,q) subplot and plotting a distribution in (2,2,1:2) etc." mean? Do you really mean "subplot(PlotsPerPage/2,PlotsPerPage, [q+q-1, q+q])"? Then the pages contains more plots then PlotsPerPage and for q = 2 you get the position [3, 4]. Sorry, I cannot follow you.
You currently have:
subplot(2,4,q)
What fails for q > 4? Do you want to display 8 diagrams per page? What happens and what do you want to happen?
Stephen Devlin
Stephen Devlin 2017-4-10
编辑：Stephen Devlin 2017-4-10
Hi Jan, I only want to display 4 diagrams per page. Each diagram will fill two subplot locations on a page, so when q=1 it would fill subplot locations 1&2, q=2 it would fill subplot locations 3&4, q=3 it would fill subplot locations 5&6, q=4 it would fill subplot locations 7&8.
Using [q+q-1, q+q] when q=1 q+q-1=1 and q+q=2 giving the subplot location [1 2] for when q=1. This gives a stretched out subplot that looks better in my pdf report.
Where it 'falls over' is when say q=7, and I cannot figure out the maths then for the loop that will work for the q values for both 1:4 and >4.

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Jan
Jan 2017-4-10
Do you mean:
q = 1:10
qq = mod(q - 1, 4) + 1
>> 1 2 3 4 1 2 3 4 1 2
Then the values of qq are restricted to 1:4. I assume you have to open a new figure when qq is 1 - as shown in your other thread.
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Stephen Devlin
Stephen Devlin 2017-4-10
Hi Jan, Something odd happens with my code and I am not sure why, the first loop was dealing with the case where q (which is the number of Volume columns (nVolCol)) q=1:4. That displays a figure with 4 subplots the way i want.
With the second loop I only seem to see the last subplot plotted, and in the wrong place.
figure('units','normalized','outerposition',[0 0 1 1]);
PlotsPerPage = 4
for q = 1:PlotsPerPage
new_str=strrep(files(q).name, '_', ' ');
new_str2=strrep(new_str, '.xlsx', ' ');
new_str3=strrep(new_str2, 'RA 20.5V 2US', ' ');
%subplot(2,2,n)
subplot(PlotsPerPage/2,PlotsPerPage,[q+q-1, q+q])
counts = hist(loopDataVol(:,q),centers);
bar(counts / sum(counts));
set(gca,'FontSize',10,'FontWeight','Bold')
set(0,'DefaultAxesLineStyleOrder',{'-','--',':'}) %or whatever order you want
% title('Velocity Distribution Row1')
title([' XXXXXXXX VolDist ',new_str3]);
end
if nVolCol>4
figure('units','normalized','outerposition',[0 0 1 1]);
for q=5:8
new_str=strrep(files(q).name, '_', ' ');
new_str2=strrep(new_str, '.xlsx', ' ');
new_str3=strrep(new_str2, 'RA 20.5V 2US', ' ');
%subplot(2,2,n)
subplot(2,4,[mod(q - 1, 4) + 1, mod(q - 1, 4) + 2])
counts = hist(loopDataVol(:,q),centers);
bar(counts / sum(counts));
set(gca,'FontSize',10,'FontWeight','Bold')
set(0,'DefaultAxesLineStyleOrder',{'-','--',':'}) %or whatever order you want
% title('Velocity Distribution Row1')
title([' YYYYYYYYY VolDist ',new_str3]);
end
end
Jan
Jan 2017-4-11
If "subplot(PlotsPerPage/2,PlotsPerPage,[q+q-1, q+q])" works reliably, then use in the 2nd loop:
for q = 5:8
qq = mod(q - 1, 4) + 1;
subplot(PlotsPerPage/2,PlotsPerPage,[qq+qq-1, qq+qq])

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