Ryan Krauss-2 wrote:
> 
> RTFM:
> 
> plot(t,y, drawstyle='steps-post')
> 
> 

Actually, 'steps-pre' (which is the default) and 'steps-post' seem to have
swapped definitions.
Here is what the docs say:
    *where*: [ 'pre' | 'post' | 'mid'  ]
      If 'pre', the interval from x[i] to x[i+1] has level y[i]
      If 'post', that interval has level y[i+1]
      If 'mid', the jumps in *y* occur half-way between the
      *x*-values.

In fact both the default behavior and what you get with steps-pre are what
SHOULD happen with steps-post.  And steps-post (as you point out) does what
should be the default behavior and that of steps-pre.

I have filed a bug report on this, since it is very important that this work
as expected.  As the original poster pointed out, this used to work
correctly but recently seems to have gotten broken.

Cheers,
-- Paul
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