Internal, not usually called directly
metrics_hoslem(y, yhat, g = 10, digits = c(2, 3))https://github.com/psolymos/ResourceSelection/blob/master/R/hoslem.test.R
Observed y, usually of the form fit$y.
Predicted y_hat, usually for the form fit$fitted
Number of bins to calculate quantiles.
Number of decimal places of form c(2,3), where digits[1] is
for chi-sq estimate and digits[2] is for p-value.
Character string of chi-sq result, df, and p-value. Significant p-value suggests poor fit.
fit = glm(mort_5yr~age.factor+extent.factor, data=colon_s, family="binomial")
metrics_hoslem(fit$y, fit$fitted)
#> [1] "Chi-sq(8) 1.18 (p=0.997)"