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Commit035403a

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fix boxplot legend entries
1 parente5562bb commit035403a

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2 files changed

+39
-0
lines changed

2 files changed

+39
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lines changed

‎lib/matplotlib/axes/_axes.py

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -4007,6 +4007,9 @@ def boxplot(self, x, notch=None, sym=None, vert=None, whis=None,
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if'color'inboxprops:
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boxprops['edgecolor']=boxprops.pop('color')
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4010+
iflabels:
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boxprops['label']=labels
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40104013
# if non-default sym value, put it into the flier dictionary
40114014
# the logic for providing the default symbol ('b+') now lives
40124015
# in bxp in the initial value of flierkw
@@ -4319,13 +4322,16 @@ def do_patch(xs, ys, **kwargs):
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do_box=do_patchifpatch_artistelsedo_plot
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boxes.append(do_box(box_x,box_y,**box_kw))
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# draw the whiskers
4325+
whisker_kw.setdefault('label','_nolegend_')
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whiskers.append(do_plot(whis_x,whislo_y,**whisker_kw))
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whiskers.append(do_plot(whis_x,whishi_y,**whisker_kw))
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# maybe draw the caps
43254329
ifshowcaps:
4330+
cap_kw.setdefault('label','_nolegend_')
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caps.append(do_plot(cap_x,cap_lo,**cap_kw))
43274332
caps.append(do_plot(cap_x,cap_hi,**cap_kw))
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# draw the medians
4334+
median_kw.setdefault('label','_nolegend_')
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medians.append(do_plot(med_x,med_y,**median_kw))
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# maybe draw the means
43314337
ifshowmeans:
@@ -4338,6 +4344,7 @@ def do_patch(xs, ys, **kwargs):
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means.append(do_plot([pos], [stats['mean']],**mean_kw))
43394345
# maybe draw the fliers
43404346
ifshowfliers:
4347+
flier_kw.setdefault('label','_nolegend_')
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flier_x=np.full(len(stats['fliers']),pos,dtype=np.float64)
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flier_y=stats['fliers']
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fliers.append(do_plot(flier_x,flier_y,**flier_kw))

‎lib/matplotlib/tests/test_legend.py

Lines changed: 32 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1391,3 +1391,35 @@ def test_legend_nolabels_draw():
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plt.plot([1,2,3])
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plt.legend()
13931393
assertplt.gca().get_legend()isnotNone
1394+
1395+
1396+
deftest_boxplot_legend():
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# Test that boxplot legends handles are patches
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# and labels are generated from boxplot's labels parameter.
1399+
fig,axs=plt.subplots()
1400+
A=5*np.random.rand(100,1)
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B=10*np.random.rand(100,1)-5
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C=7*np.random.rand(100,1)-5
1403+
labels= ['a','b','c']
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1405+
bp0=axs.boxplot(A,positions=[0],patch_artist=True,labels=labels[0])
1406+
bp1=axs.boxplot(B,positions=[1],patch_artist=True,labels=labels[1])
1407+
bp2=axs.boxplot(C,positions=[2],patch_artist=True,labels=labels[2])
1408+
# red, blue, green
1409+
colors= [(1.0,0.0,0.0,1), (0.0,0.0,1.0,1), (0.0,0.5,0.0,1)]
1410+
box_list= [bp0,bp1,bp2]
1411+
# Set colors to the boxes
1412+
lbl_index=0
1413+
forb_plot,colorinzip(box_list,colors):
1414+
forpatchinb_plot['boxes']:
1415+
patch.set_color(color)
1416+
lbl_index+=1
1417+
1418+
legend=axs.legend()
1419+
index=0
1420+
foriinlegend.legend_handles:
1421+
assertisinstance(i,mpl.patches.Rectangle)
1422+
asserti.get_facecolor()==colors[index]
1423+
asserti.get_edgecolor()==colors[index]
1424+
asserti.get_label()==labels[index]
1425+
index+=1

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