beezdemand (version 0.2.0)

predict.beezdemand_fixed: Predict Method for beezdemand_fixed

Description

Predict Method for beezdemand_fixed

Usage

# S3 method for beezdemand_fixed
predict(
  object,
  newdata = NULL,
  type = c("response", "link"),
  se.fit = FALSE,
  interval = c("none", "confidence"),
  level = 0.95,
  ...
)

Value

A tibble containing the original newdata columns, plus .fitted

and, when requested, .se.fit and .lower/.upper. If newdata does not include an id column, predictions are returned for all subjects (cross product of newdata × subjects) unless k is subject-specific (k = "ind").

Arguments

object

A beezdemand_fixed object.

newdata

A data frame containing a price column matching the fitted object's x_var. If NULL, uses the unique observed prices when available.

type

One of "response" (default) or "link".

se.fit

Logical; if TRUE, includes a .se.fit column (currently NA because vcov is not available from legacy fixed fits).

interval

One of "none" (default) or "confidence". When requested, .lower/.upper are returned as NA because vcov is unavailable.

level

Confidence level when interval = "confidence". Currently used only for validation.

...

Unused.