Inverse of gdtr vs a.
Returns the inverse with respect to the parameter a of p = gdtr(a, b, x), the cumulative distribution function of the gamma distribution.
Parameters: | p : array_like
b : array_like
x : array_like
out : ndarray, optional
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Returns: | a : ndarray
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See also
Examples
First evaluate gdtr.
>>> p = gdtr(1.2, 3.4, 5.6)
>>> print(p)
0.94378087442
Verify the inverse.
>>> gdtria(p, 3.4, 5.6)
1.2