On Sep 2, 2008, at 6:56 PM, Fredrik Johansson wrote: > Hi, > > I've encountered what appears to be a bug in matplotlib-0.98.3 > (Windows XP, Python 2.5). The following plot of a function with poles > displays garbage (large filled boxes instead of a curve). There's > large variation in the y values, but not so large that this shouldn't > be possible to plot correctly. > > Is this problem known? Is there a workaround? > > from pylab import * > x = [-2.97, -2.94, -2.91, -2.88, -2.85, -2.82, -2.79, -2.76, -2.73, > -2.7, > -2.67, -2.64, -2.61, -2.58, -2.55, -2.52, -2.49, -2.46, -2.43, -2.4, > -2.37, > -2.34, -2.31, -2.28, -2.25, -2.22, -2.19, -2.16, -2.13, -2.1, -2.07, > -2.04, > -2.01, -1.98, -1.95, -1.92, -1.89, -1.86, -1.83, -1.8, -1.77, -1.74, > -1.71, > -1.68, -1.65, -1.62, -1.59, -1.56, -1.53, -1.5, -1.47, -1.44, -1.41, > -1.38, > -1.35, -1.32, -1.29,-1.26, -1.23, -1.2, -1.17, -1.14, -1.11, -1.08, > -1.05, > -1.02, -0.99, -0.96, -0.93, -0.9, -0.87, -0.84, -0.81, -0.78, -0.75, > -0.72, > -0.69, -0.66, -0.63, -0.6, -0.57, -0.54, -0.51, -0.48, -0.45, -0.42, > -0.39, > -0.36, -0.33, -0.3, -0.27, -0.24, -0.21, -0.18, -0.15, -0.12, -0.09, > -0.06, > -0.03] > y = [7.40742e+6, 462976.0, 91463.4, 28950.0, 11867.8, 5732.96, > 3104.37, > 1830.03, 1153.53, 768.963, 538.805, 395.968, 305.58, 248.666, 214.668, > 197.843, 195.517, 207.33, 235.138, 283.525, 361.162, 483.641, 679.315, > 1001.79, 1558.46, 2581.22, 4621.92, 9171.58, 21022.7, 60014.1, > 249909.0, > 2.34376e+6, 6.0e+8, 3.75e+7, 960013.0, 146498.0, 40995.2, > 15633.9,7200.57, > 3768.46, 2164.71, 1336.34, 875.104, 603.287, 436.34, 331.148, 264.559, > 223.743, 201.613, 194.594, 201.594, 223.706, 264.503, 331.072, > 436.244, > 603.172, 874.968, 1336.19, 2164.53, 3768.26, 7200.35, 15633.7, > 40994.9, > 146498.0, 960013.0, 3.75e+7, 6.0e+8, 2.34376e+6, 249909.0, 60013.7, > 21022.2, 9171.01, 4621.3, 2580.56, 1557.75, 1001.03, 678.491, 482.753, > 360.205, 282.492, 234.022, 206.125, 194.213, 196.431, 213.137, > 247.004, > 303.774, 394.002, 536.66, 766.62, 1150.97, 1827.22, 3101.28, 5729.56, > 11864.0, 28945.8, 91458.8, 462971.0, 7.40741e+6] > plot(x, y) > ylim([-40, 40]) > show()
I may be missing something here, but everything plots fine *if you remove the call to ylim*. Note that the minimum y value is 194.213. I wouldn't expect to see anything if none of the data is between y = -40 .. 40. Sorry if I'm overlooking something. Best, -Tony > -- > Fredrik > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win > great prizes > Grand prize is a trip for two to an Open Source event anywhere in > the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
