[Numpy-discussion] Find insertion point

Hello, I want to find the first i such that x[i] y and x[i+1] = y. Is there a way to do this without using a Python loop? I can't use np.searchsorted(), because my x array crosses y several times. Best, -Nikolaus -- »Time flies like an arrow, fruit flies like a Banana.« PGP

Re: [Numpy-discussion] Find insertion point

On 8/17/2010 11:53 AM, Nikolaus Rath wrote: I want to find the first i such that x[i] y and x[i+1]= y. Is there a way to do this without using a Python loop? argmax? (to get i+1): d = np.linspace(0,10,101) x = np.sin(d) np.argmax(x=0.5) 6 fwiw, Alan

Re: [Numpy-discussion] Find insertion point

On 08/17/2010 09:53 AM, Nikolaus Rath wrote: Hello, I want to find the first i such that x[i] y and x[i+1]= y. Is there a way to do this without using a Python loop? I can't use np.searchsorted(), because my x array crosses y several times. Best, -Nikolaus i =

Re: [Numpy-discussion] Find insertion point

Nikolaus Rath wrote: Hello, I want to find the first i such that x[i] y and x[i+1] = y. Is there a way to do this without using a Python loop? I can't use np.searchsorted(), because my x array crosses y several times. Best, -Nikolaus Here's one way: In [32]: x Out[32]:

Re: [Numpy-discussion] Find insertion point

Lane Brooks l...@brooks.nu writes: On 08/17/2010 09:53 AM, Nikolaus Rath wrote: Hello, I want to find the first i such that x[i] y and x[i+1]= y. Is there a way to do this without using a Python loop? I can't use np.searchsorted(), because my x array crosses y several times. Best,

Re: [Numpy-discussion] Find insertion point

Warren Weckesser warren.weckes...@enthought.com writes: Nikolaus Rath wrote: Hello, I want to find the first i such that x[i] y and x[i+1] = y. Is there a way to do this without using a Python loop? I can't use np.searchsorted(), because my x array crosses y several times. In [34]: