fix limit calculation of step* histogram #1066
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Could you supply some code that demonstrates the problem? From a quick glance of the code, I would think it was correct. |
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Hmmm... actually. You are right the bug isn't where this change is but here is how to reproduce the bug. Sorry for long data. The short one with randn doesn't seems to reproduce the bug. x = array([ 204872.484375, 203991.765625, 205687.8125 , 204742.015625,
203242.21875 , 203915.421875, 204104.171875, 205327. ,
203688.828125, 205065.875 , 204216. , 204971.671875,
202821. , 202513.421875, 204655.28125 , 204077.171875,
204113.03125 , 203609.640625, 205166.875 , 203480.421875,
205033.15625 , 203545.359375, 205745.09375 , 204191.5 ,
204352.75 , 205895.5 , 203957.8125 , 204922. ,
204926.46875 , 203542.703125, 203439.734375, 204175.75 ,
203235.671875, 204203.859375, 204364.859375, 202893.921875,
204735.390625, 204109.34375 , 203248.59375 , 205474.8125 ,
205579.3125 , 205223.546875, 203747.859375, 203428.5625 ,
204032.703125, 205342. , 203919.53125 , 204935.609375,
203799.171875, 205267. , 205811.4375 , 205545.671875,
204505.296875, 203193.171875, 204712.03125 , 204869.328125,
203978.984375, 204706.96875 , 204281.59375 , 206671.296875,
205489.15625 , 204234.625 , 204288.1875 , 203856.4375 ,
202397.15625 , 203842.34375 , 204225.140625, 204723.484375,
203921.671875, 203309.59375 , 205585.265625, 205639.984375,
204662.84375 , 204669.375 , 204697.140625, 204885.609375,
204841.953125, 202966.359375, 203703.03125 , 204063.8125 ,
203600.125 , 204758.28125 , 203790.375 , 204788.125 ,
205213.09375 , 203406.1875 , 203743.640625, 205062.734375,
204383.359375, 204062.1875 , 204861.484375, 203959.59375 ,
203386.21875 , 204590.78125 , 205909. , 204921.96875 ,
204673.78125 , 205823.03125 , 203997.5 , 204925.90625 ,
204565.953125, 205387.84375 , 203983.78125 , 204911.9375 ,
205802.546875, 203424.5 , 204249.59375 , 203936.09375 ,
206172.09375 , 203548.171875, 203882.015625, 204374.515625,
204202.078125, 205384.3125 , 205259.109375, 203466.09375 ,
205665.765625, 205169.265625, 204005.046875, 204477.78125 ,
204398.421875, 204829.125 , 203448.859375, 204907.8125 ,
204289.484375, 205328.4375 , 204811.578125, 203218.109375,
204250.28125 , 204041.78125 , 205668.21875 , 203952.828125,
205015.796875, 205242.703125, 204003.546875, 204847.53125 ,
204988.015625, 203917.4375 , 205779.21875 , 203611.984375,
204960.859375, 204531.625 , 205578.6875 , 203253.84375 ,
204620.171875, 204516.96875 , 204070.984375, 205448.65625 ,
204623.328125, 204228.109375, 205392.203125, 205449.28125 ,
202923.875 , 203670.734375, 203380.890625, 206269.6875 ,
204718.28125 , 205592.15625 , 204997.15625 , 204224.703125,
204141.828125, 205526.796875, 206984.296875, 204243.5 ,
203661.71875 , 203969.328125, 204256.125 , 204657.65625 ,
203087.515625, 205435.515625, 205679.015625, 205137.625 ,
203510.421875, 204616.6875 , 203742.125 , 203595.203125,
203721.390625, 204806.40625 , 204765.3125 , 204922.265625,
205595.796875, 204131.4375 , 204716.359375, 203827.890625,
203850.296875, 204375.453125, 204600.578125, 205501.5 ,
203517.90625 , 203457.4375 , 204287.828125, 203719.390625,
204746.625 , 204052.40625 , 204075.34375 , 204861.359375,
206294.953125, 204334.171875, 203784.109375, 204637.75 ], dtype=float32)
#this one looks fine
hist(x,bins=40)
#but not this one
hist(x,bins=40,histtype='stepfilled')
#the y axis limit of this one is screwed up |
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Oh here is a more concise way to reproduce the bug: y = randn(1000)+5000
hist(y,numbins=40,histtype='stepfilled')The problem is this line, which I am not too sure why one want to do that. The minimum is the minimum bin interval value which has nothing to do with the y axis value. ymin0 = max(_saved_bounds[1]*0.9, minimum) |
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Close see #1075 instead for the fix |
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The limit calculation for histogram was switched for horizontal and vertical orientation.
Bar defines the vertical one as the one that x axis represents bin interval and y axis represent bin count.
The former one try to set y axis limit to bin interval for step* with vertical orientation which is wrong.
This PR fixed it.