Error using subplot (line 301) Index exceeds number of subplots.

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farhat khan
farhat khan 2019-7-24
回答： Walter Roberson 2019-7-24
ax = gobjects(imageset.Count,1);
for ii = 1:imageset.Count
ax(ii) = ...
subplot(floor(sqrt(imageset.Count)),ceil(sqrt(imageset.Count)),ii); %Error show me on this line
[~,currName] = fileparts(imageset.ImageLocation{ii});
imshow(read(imageset,ii))
title([num2str(ii),') ' currName],...
'interpreter','none','fontsize',7)
end
expandAxes(ax);
  1 个评论
Star Strider
Star Strider 2019-7-24
The error message is straightforward.
Your ‘ii’ index is greater than floor(sqrt(imageset.Count)) * ceil(sqrt(imageset.Count)).

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回答（1 个）

Walter Roberson
Walter Roberson 2019-7-24
>> t = 1:100;
>> find(floor(sqrt(t)).*ceil(sqrt(t)) < t)
ans =
Columns 1 through 25
3 7 8 13 14 15 21 22 23 24 31 32 33 34 35 43 44 45 46 47 48 57 58 59 60
Columns 26 through 45
61 62 63 73 74 75 76 77 78 79 80 91 92 93 94 95 96 97 98 99
For example, suppose the Count is 8, then sqrt(8) is between 2 and 3, so the floor() is 2 and ceil() is 3, and 2*3 = 6, which is less than 8, so when you tried to plot for the 7th you would run out of subplots.

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