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嗨我對matplotlib相當新,但我想繪製一個堆積的條形圖。我的酒吧不是堆疊,而是彼此重疊。Matplotlib堆積的條形圖
這是我正在存儲數據的字典。
eventsDict = {
'A' : [30.427007371788505, 3.821656050955414],
'B' : [15.308879925288613, 25.477707006369428],
'C' : [10.846066723627477, 1.910828025477707],
'D' : [0.32586881793073297, 0.6369426751592357],
'E' : [3.110656307747332, 11.464968152866243],
'F' : [8.183480040534901, 1.910828025477707],
'G' : [3.048065650644783, 16.560509554140125],
'H' : [9.950920976811652, 4.45859872611465]
}
我堆積的條形圖有兩個小節。第一個包含來自列表第一個值的所有數據,第二個包含列表中的所有第二個值。 (名單是在字典中的值)
首先,我的字典轉換爲一個元組:
allEvents = list(self.eventsDict.items())
這會把字典到此列表:
all Events = [('A', [30.427007371788505, 3.821656050955414]), ('B', [15.308879925288613, 25.477707006369428]), ('C', [10.846066723627477, 1.910828025477707]), ('D', [0.32586881793073297, 0.6369426751592357]), ('E', [3.110656307747332, 11.464968152866243]), ('F', [8.183480040534901, 1.910828025477707]), ('G', [3.048065650644783, 16.560509554140125]), ('H', [9.950920976811652, 4.45859872611465])]
這是我繪製它:
range_vals = np.linspace(0, 2, 3)
mid_vals = (range_vals[0:-1] + range_vals[1:]) * 0.5
colors = ['#DC7633', '#F4D03F', '#52BE80', '#3498DB', '#9B59B6', '#C0392B', '#2471A3', '#566573', '#95A5A6']
x_label = ['All events. %s total events' % (totalEvents), 'Corrected p-value threshold p < %s. %s total events' % (self.pVal, totalAdjusted)]
#Turn the dict to a tuple. That way it is ordered and is subscriptable.
allEvents = list(self.mod_eventsDict.items())
#print (allEvents)
#Use below to index:
#list[x] key - value pairing
#list[x][0] event name (key)
#list[x][1] list of values [val 1(all), val 2(adjusted)]
#Plot the Top bar first
plt.bar(mid_vals, allEvents[0][1], color = colors[0], label = allEvents[0][0])
#Plot the rest
x = 1
for x in range(1, 20):
try:
plt.bar(mid_vals, allEvents[x-1][1], bottom =allEvents[x-1][1], color = colors[x], label = allEvents[x][0])
x = x + 1
except IndexError:
continue
plt.xticks(mid_vals) # for classic style
plt.xticks(mid_vals, x_label) # for classic style
plt.xlabel('values')
plt.ylabel('Count/Fraction')
plt.title('Stacked Bar chart')
plt.legend()
plt.axis([0, 2.5, 0, 1])
plt.show()
這是圖形輸出。理想情況下,堆疊時它們應該全部加起來爲1。我把它們全部做成整體的一小部分,這樣兩根酒吧的高度就會相同。但是,它們只是相互重疊。另外請注意,堆棧與字典上的名稱有不同的標籤。
請幫我調試!
感謝那定了!我跟蹤了當前的高度,就像你在for循環中增加它一樣。 – Carmelle