擅长:python、mysql、java
<p>如错误所述,无法将单个数字与数组进行比较。这里有一个解决方案:</p>
<pre><code>def ddf(x,sig):
val = np.zeros_like(x)
val[(-(1/(2*sig))<=x) & (x<=(1/(2*sig)))] = 1
return val
</code></pre>
<p>输出样本:</p>
<p><a href="https://i.stack.imgur.com/5OklX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5OklX.png" alt="enter image description here"/></a></p>