how to produce interval from this matrix?

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uncung fgv
uncung fgv 2012-11-23
Columns 1 through 6
0 0.1131 0.2134 0.3023 0.3812 0.4512
0 0.2134 0.3812 0.5132 0.6171 0.6988
0 0.3023 0.5132 0.6604 0.7631 0.8347
0 0.3812 0.6171 0.7631 0.8534 0.9093
0 0.4512 0.6988 0.8347 0.9093 0.9502
0 0.5132 0.7631 0.8847 0.9439 0.9727
0 0.5683 0.8136 0.9195 0.9653 0.9850
i want interval between column 2 and 1
column 3 and 2
column 4 and 3
column 5 and 4
column 6 and 5
and then i want
the result of those interval devided each other like:
interval column 3 and 2/ interval column 2 and 1
interval column 4 and 3/ interval column 3 and 2
interval column 5 and 4/ interval column 4 and 3
and soon
  2 个评论
per isakson
per isakson 2012-11-23
Azzi, I guess "so on". However, what does OP mean by "interval"?
uncung fgv
uncung fgv 2012-11-24
sorry my native not english. interval in my mind is determination or different-ial. like 6 and 4 the 'interval'= 2 (minus)

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Matt J
Matt J 2012-11-24
编辑：Matt J 2012-11-24
Here's a wild guess at what you mean
diff(A(:,2:end),1,2)./diff(A(:,1:end-1),1,2)
  4 个评论
显示 2更早的评论
Matt J
Matt J 2012-11-24
编辑：Matt J 2012-11-24
A little more efficiently, then
temp=diff(A,1,2);
out=temp(:,2:end)./temp(:,1:end-1);
uncung fgv
uncung fgv 2012-11-24
many thanks. gratefull i know this site.

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