Thread: [Numpy-discussion] numarray equivalent to sign() function

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numpy-discussion

[Numpy-discussion] numarray equivalent to sign() function

From: Mike Z. <zi...@uc...> - 2004-05-23 21:05:06

Hi, I am in the process of converting some code from Numeric to numarray,
and it seems that numarray no longer has the sign() function -- is that
so?

ex:

sign(-30.0) = -1
sign(0) = 0
sign(1000) = 1

Is there a replacement?

Thanks,

Mike

[Numpy-discussion] Re: numarray equivalent to sign() function

From: Scott D. D. <Sco...@Ac...> - 2004-06-27 02:10:10

Mike Zingale wrote:

> Is there a replacement?
def sign(x): return min(max(-1, math.frexp(x)[0]*2), 1)

- Scott David Daniels
Sco...@Ac...