predictCount {s20x}

Predicted Counts for a Generalized Linear Model

Description

Uses the main output and some error messages from R function 'predict' but gives you more output. (Error messages are not reliable when used in Splus.)

Usage

predictCount(object, newdata, cilevel = 0.95, digit = 3, print.out = TRUE, ...)

Arguments

object

a glm object, i.e. the output from glm.

newdata

prediction data frame.

cilevel

confidence level of the interval.

digit

decimal numbers after the point.

print.out

if TRUE, print out the prediction matrix.

...

optional arguments that are passed to the generic predict.

Details

Note: The data frame, newdata, must have the same column order and data types (e.g. numeric or factor) as those used in fitting the model.

Value

A data frame with three columns:

Predicted

the predicted count.

Conf.lower

the lower bound of the predicted count.

Conf.upper

the upper bound of the predicted count.

See Also

predict, predict.glm, as.data.frame.