def clamp_min(s: "Stream[float]", c_min: float) -> "Stream[float]":
"""Clamps the minimum value of a stream.
Parameters
----------
s : `Stream[float]`
A float stream.
c_min : float
The mimimum value to clamp by.
Returns
-------
`Stream[float]`
The minimum clamped stream of `s`.
"""
return BinOp(np.maximum)(s, Stream.constant(c_min)).astype("float")
def mul(s1: "Stream[float]", s2: "Stream[float]") -> "Stream[float]":
"""Computes the multiplication of two float streams.
Parameters
----------
s1 : `Stream[float]`
The first float stream.
s2 : `Stream[float]` or float
The second float stream.
Returns
-------
`Stream[float]`
A stream created from multiplying `s1` and `s2`.
"""
if np.isscalar(s2):
s2 = Stream.constant(s2, dtype="float")
return BinOp(np.multiply, dtype="float")(s1, s2)
return BinOp(np.multiply, dtype="float")(s1, s2)
def rsub(s1: "Stream[float]", s2: "Stream[float]") -> "Stream[float]":
"""Computes the reverse subtraction of two float streams.
Parameters
----------
s1 : `Stream[float]`
The first float stream.
s2 : `Stream[float]` or float
The second float stream.
Returns
-------
`Stream[float]`
A stream created from subtracting `s1` from `s2`.
"""
if not np.isscalar(s2):
raise Exception("Invalid stream operation.")
s2 = Stream.constant(s2, dtype="float")
return BinOp(np.subtract, dtype="float")(s2, s1)
def sub(s1: "Stream[float]", s2: "Stream[float]") -> "Stream[float]":
"""Computes the subtraction of two float streams.
Parameters
----------
s1 : `Stream[float]`
The first float stream.
s2 : `Stream[float]` or float
The second float stream.
Returns
-------
`Stream[float]`
A stream created from subtracting `s2` from `s1`.
"""
if np.isscalar(s2):
s2 = Stream.constant(s2, dtype="float")
return BinOp(np.subtract, dtype="float")(s1, s2)
return BinOp(np.subtract, dtype="float")(s1, s2)
def truediv(s1: "Stream[float]", s2: "Stream[float]") -> "Stream[float]":
"""Computes the division of two float streams.
Parameters
----------
s1 : `Stream[float]`
The first float stream.
s2 : `Stream[float]` or float
The second float stream.
Returns
-------
`Stream[float]`
A stream created from dividing `s1` by `s2`.
"""
if np.isscalar(s2):
s2 = Stream.constant(s2, dtype="float")
return BinOp(np.divide, dtype="float")(s1, s2)
return BinOp(np.divide, dtype="float")(s1, s2)