我在matplotlib中绘制了这样一个条形图:

X-蜱不跨越x轴的整个范围.我怎样才能做到这一点?
我的密码在这里:
def counter_proportions(counter):
total = sum(counter.values())
proportions = dict()
for key, value in counter.items():
proportions[key] = float(value)/float(total)
return proportions
def categorical_counter_xlabels(counter):
idxs = dict()
for i, key in enumerate(counter.keys()):
idxs[key] = i
return idxs
# Use this dummy data
detailed_hosts = ['Species1' * 3, 'Species2' * 1000, 'Species3' * 20, 'Species4' * 20]
# Create a detailed version of the counter, which includes the exact species represented.
detailed_hosts = []
counts = Counter(detailed_hosts)
props = counter_proportions(counts)
xpos = categorical_counter_xlabels(counts)
fig = plt.figure(figsize=(16,10))
ax = fig.add_subplot(111)
plt.bar(xpos.values(), props.values(), align='center')
plt.xticks(xpos.values(), xpos.keys(), rotation=90)
plt.xlabel('Host Species')
plt.ylabel('Proportion')
plt.title("Proportion of Reassortant Viruses' Host Species")
plt.savefig('Proportion of Reassortant Viruses Host Species.pdf', bbox_inches='tight')发布于 2015-02-12 18:16:30
手动棒间距
您可以手动控制条形图的位置(例如,它们之间的间距),但是使用字典--而是尝试使用一个整数列表。
Import scipy
xticks_pos = scipy.arange( len( counts.keys() )) +1
plt.bar( xticks_pos, props.values(), align='center')如果您缺少this,并且不需要安装它,那么arange()就会产生这样的结果:
In [5]: xticks_pos
Out[5]: array([ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10])控制边距
如@JoeKington在评论中提到的,您可以控制其他部分(例如,如果您不想控制间距,而是希望限制边距,等等):
plt.axis('tight')
plt.margins(0.05, 0)
plt.xlim(x.min() - width, x.max() + width))https://stackoverflow.com/questions/28484329
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