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KDEMultivariateConditional.pdf()

statsmodels.nonparametric.kernel_density.KDEMultivariateConditional.pdf

KDEMultivariateConditional.pdf(endog_predict=None, exog_predict=None) [source]

Evaluate the probability density function.

Parameters:

endog_predict: array_like, optional :

Evaluation data for the dependent variables. If unspecified, the training data is used.

exog_predict: array_like, optional :

Evaluation data for the independent variables.
Returns:

pdf: array_like :

The value of the probability density at endog_predict and exog_predict.

Notes

The formula for the conditional probability density is:

f(X|Y)=\frac{f(X,Y)}{f(Y)}

with

f(X)=\prod_{s=1}^{q}h_{s}^{-1}k\left(\frac{X_{is}-X_{js}}{h_{s}}\right)

where k is the appropriate kernel for each variable.

doc_statsmodels
doc_statsmodels
2017-01-18 16:11:17
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