gdd_predict: Predict Developmental Duration at Given Temperatures

In insectecol: Insect Ecology Data Analysis Toolkit

Predict Developmental Duration at Given Temperatures

Description

Evaluates the fitted model (linear or nonlinear) at the given temperatures and returns the predicted developmental rate and duration D = 1 / V.

Usage

gdd_predict(object, temp, group = NULL)

Arguments

object	A "gdd" object returned by [gdd_calc()].
temp	Numeric vector of target temperatures (deg C).
group	Character vector of group names to predict; default is all groups.

Value

A data.frame with columns: group, temp, pred_rate, pred_duration, within_range.

Examples

f <- system.file("extdata", "gdd_example.csv", package = "insectecol")
fit <- gdd_calc(gdd_read(f), by = "stage")
gdd_predict(fit, temp = c(20, 24, 28), group = "Egg")

insectecol documentation built on Oct. 5, 2026, 5:08 p.m.