diff options
Diffstat (limited to 'numpy/lib/ufunclike.py')
-rw-r--r-- | numpy/lib/ufunclike.py | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/numpy/lib/ufunclike.py b/numpy/lib/ufunclike.py deleted file mode 100644 index 509756a1f..000000000 --- a/numpy/lib/ufunclike.py +++ /dev/null @@ -1,58 +0,0 @@ -""" -Module of functions that are like ufuncs in acting on arrays and optionally -storing results in an output array. -""" -__all__ = ['fix', 'isneginf', 'isposinf', 'log2'] - -import numpy.core.numeric as nx -from numpy.core.numeric import asarray, empty, isinf, signbit -import numpy.core.umath as umath - -def fix(x, y=None): - """ Round x to nearest integer towards zero. - """ - x = asarray(x) - if y is None: - y = nx.floor(x) - else: - nx.floor(x, y) - if x.ndim == 0: - if (x<0): - y += 1 - else: - y[x<0] = y[x<0]+1 - return y - -def isposinf(x, y=None): - """Return a boolean array y with y[i] True for x[i] = +Inf. - - If y is an array, the result replaces the contents of y. - """ - if y is None: - y = empty(x.shape, dtype=nx.bool_) - umath.logical_and(isinf(x), ~signbit(x), y) - return y - -def isneginf(x, y=None): - """Return a boolean array y with y[i] True for x[i] = -Inf. - - If y is an array, the result replaces the contents of y. - """ - if y is None: - y = empty(x.shape, dtype=nx.bool_) - umath.logical_and(isinf(x), signbit(x), y) - return y - -_log2 = umath.log(2) -def log2(x, y=None): - """Returns the base 2 logarithm of x - - If y is an array, the result replaces the contents of y. - """ - x = asarray(x) - if y is None: - y = umath.log(x) - else: - umath.log(x, y) - y /= _log2 - return y |