Plotyy and error bars
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I'd like to do a plotyy function, and I have confidence intervals for each point of my data. I can't seem to figure out a way to do both of these at once. My x data is stored in an array RC, and the two y data are in arrays L and D. The confidence intervals are in ciL and ciD, and are not necessarily symmetric. Is there an easy way to add these as error bars to my plot?
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Patrick Kalita
2011년 8월 3일
When customizing graphs made with plotyy, it is usually useful to store axes handles that it provides as its return value. With those axes handles you can (1) turn hold mode on for each one and (2) add errorbars to each.
Here's an example:
% Make up some data to plot
x = 1:5;
y1 = rand(1,5);
y2 = rand(1,5) + 100;
L1 = 0.01 * ones(1,5);
U1 = 0.02 * ones(1,5);
L2 = 0.03 * ones(1,5);
U2 = 0.04 * ones(1,5);
% Store the axes handles produced by PLOTYY
ax = plotyy(x, y1, x, y2);
% Use HOLD and ERRORBAR, passing axes handles to the functions.
hold(ax(1), 'on');
errorbar(ax(1), x, y1, L1, U1);
hold(ax(2), 'on');
errorbar(ax(2), x, y2, L2, U2);
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Patrick Kalita
2011년 8월 8일
No, that's not the way ERRORBAR wants its lower and upper bounds. I guess you'll have to convert.
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