Math

Various mathematical utility functions.

creamas.math.gaus_pdf(x, mean, std)

Gaussian distribution’s probability density function.

See, e.g. Wikipedia page for normal distribution.

Parameters

• x (float or numpy.ndarray) – point in x-axis

• mean (float) – mean or expectation

• str (float) – standard deviation

Returns

pdf(s) in point x

Return type

float or numpy.ndarray

creamas.math.logistic(x, x0, k, L)

Logistic function.

See, e.g Wikipedia page for logistic function.

Parameters

• x (float or numpy.ndarray) – point in x-axis

• x0 (float) – sigmoid’s midpoint

• k (float) – steepness of the curve

• L (float) – maximum value of the curve

Returns

function’s value(s) in point x

Return type

float or numpy.ndarray