logistic_saturation#

pymc_marketing.mmm.transformers.logistic_saturation(x, lam=0.5)[source]#

Logistic saturation transformation.

\[f(x) = \frac{1 - e^{-\lambda x}}{1 + e^{-\lambda x}}\]

(Source code, png, hires.png, pdf)

../../_images/pymc_marketing-mmm-transformers-logistic_saturation-1.png

Parameters:

x (tensor) – Input tensor.
lam (float or array-like, optional, by default 0.5) – Saturation parameter.

Returns:

Transformed tensor.

Return type:

tensor