7.15.3.5. statsmodels.sandbox.distributions.transformed.SquareFunc¶

class statsmodels.sandbox.distributions.transformed.SquareFunc[source]¶

class to hold quadratic function with inverse function and derivative

using instance methods instead of class methods, if we want extension to parameterized function

__init__()¶

x.__init__(...) initializes x; see help(type(x)) for signature

Methods

derivminus(x)
derivplus(x)
inverseminus(x)
inverseplus(x)
squarefunc(x)