estimator.nd.stddevf# estimator.nd.stddevf(sigma)[source]# Gaussian width parameter σ → standard deviation. Parameters: sigma – Gaussian width parameter σ EXAMPLE: >>> from estimator.nd import stddevf >>> stddevf(64.0) 25.532... >>> stddevf(64) 25.532... >>> stddevf(RealField(256)(64)).prec() 256