擅长:python、mysql、java
<p>我照大卫·茨威克说的做了,用了几秒钟,然后改变了x轴。我来看看戴夫对“垃圾箱”说了些什么。这大致可以工作,并给出一个酒吧每小时图开始。</p>
<pre><code>def chart(occurance_list):
hour_list = [t.hour for t in occurance_list]
print hour_list
numbers=[x for x in xrange(0,24)]
labels=map(lambda x: str(x), numbers)
plt.xticks(numbers, labels)
plt.xlim(0,24)
plt.hist(hour_list)
plt.show()
</code></pre>
<p><img src="https://i.stack.imgur.com/VL704.png" alt="frequency of lowest daily exahange rate for GBPUSD"/></p>