Przesuwanie osi x na szczyt wykresu w programie matplotlib
Na podstawie tego pytania o heatmapy w matplotlib , chciałem przenieść tytuły osi x na początek fabuły.
import matplotlib.pyplot as plt
import numpy as np
column_labels = list('ABCD')
row_labels = list('WXYZ')
data = np.random.rand(4,4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data, cmap=plt.cm.Blues)
# put the major ticks at the middle of each cell
ax.set_xticks(np.arange(data.shape[0])+0.5, minor=False)
ax.set_yticks(np.arange(data.shape[1])+0.5, minor=False)
# want a more natural, table-like display
ax.invert_yaxis()
ax.xaxis.set_label_position('top') # <-- This doesn't work!
ax.set_xticklabels(row_labels, minor=False)
ax.set_yticklabels(column_labels, minor=False)
plt.show()
Jednak wywołanie set_label_position matplotlib (jak wspomniano powyżej) nie wydaje się mieć pożądanego efektu. Oto moje wyjście:
Co robię źle? 72
4 answers
Użyj
ax.xaxis.tick_top()
Aby umieścić znaki kleszcza na górze obrazu. Polecenie
ax.set_xlabel('X LABEL')
ax.xaxis.set_label_position('top')
Wpływa na etykietę, nie na znaki kleszcza.
import matplotlib.pyplot as plt
import numpy as np
column_labels = list('ABCD')
row_labels = list('WXYZ')
data = np.random.rand(4, 4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data, cmap=plt.cm.Blues)
# put the major ticks at the middle of each cell
ax.set_xticks(np.arange(data.shape[1]) + 0.5, minor=False)
ax.set_yticks(np.arange(data.shape[0]) + 0.5, minor=False)
# want a more natural, table-like display
ax.invert_yaxis()
ax.xaxis.tick_top()
ax.set_xticklabels(column_labels, minor=False)
ax.set_yticklabels(row_labels, minor=False)
plt.show()
87
Author: unutbu,
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2013-03-12 22:05:28
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2013-03-12 22:05:28
Chcesz set_ticks_position
zamiast set_label_position
:
ax.xaxis.set_ticks_position('top') # the rest is the same
To daje mi:
23
Author: Lev Levitsky,
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2013-01-18 19:42:31
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2013-01-18 19:42:31
Tick_params jest bardzo przydatny do ustawiania właściwości tick. Etykiety mogą być przenoszone do góry za pomocą:
ax.tick_params(labelbottom='off',labeltop='on')
11
Author: wSmit,
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2013-10-03 08:40:18
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2013-10-03 08:40:18
Musisz zrobić dodatkowe masowanie, jeśli chcesz, aby kleszcze (nie etykiety) pojawiały się na górze i na dole (nie tylko na górze). Jedynym sposobem, w jaki mogłem to zrobić, jest niewielka zmiana kodu unutbu:
import matplotlib.pyplot as plt
import numpy as np
column_labels = list('ABCD')
row_labels = list('WXYZ')
data = np.random.rand(4, 4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data, cmap=plt.cm.Blues)
# put the major ticks at the middle of each cell
ax.set_xticks(np.arange(data.shape[1]) + 0.5, minor=False)
ax.set_yticks(np.arange(data.shape[0]) + 0.5, minor=False)
# want a more natural, table-like display
ax.invert_yaxis()
ax.xaxis.tick_top()
ax.xaxis.set_ticks_position('both') # THIS IS THE ONLY CHANGE
ax.set_xticklabels(column_labels, minor=False)
ax.set_yticklabels(row_labels, minor=False)
plt.show()
Wyjście:
1
Author: user1420304,
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2013-05-08 01:45:54
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2013-05-08 01:45:54