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## Re: [Matplotlib-users] ANN: mpltools 0.1 release

 Re: [Matplotlib-users] ANN: mpltools 0.1 release From: John Hunter - 2012-07-11 15:24:04 Attachments: Message as HTML ```On Wed, Jul 11, 2012 at 10:09 AM, Damon McDougall wrote: > > Well, as Ben said, that error fill plot is neato! It doesn't look too > complicated, either. I'd be more than happy to port it over later today > when I get bored of typing up my thesis. It'll probably only take me > about 30 minutes. > > If nobody is opposed to this idea, I'll go ahead and submit a PR this > evening (British Summer (hah!) Time). > While it is a nice graph, I am not sure that the use case is common enough to justify a new plotting method. One can get the same result with: In [68]: x = np.linspace(0, 2 * np.pi) In [69]: y_sin = np.sin(x) In [70]: err = np.concatenate([y_sin + 0.2, y_sin[::-1] - 0.2]) In [71]: plot(x, y_sin) Out[71]: [] In [72]: fill_between(np.concatenate([x, x[::-1]]), err, facecolor='red', alpha=0.5) Out[72]: Admittedly the [::-1] thing is a bit counter-intuitive, but rather than adding a new plotting method, perhaps we would be better off with a helper method to create the xs and ys for fill_between xs, ys = mlab.pad_line(x, y, 0.2) fill_between(xs, ys) JDH ```