Type:	Package
Title:	Degree-Day Phenology Calculator ('shiny' Application)
Version:	0.1.0
Description:	Provides a 'shiny' application to compute daily and cumulative degree-days from minimum and maximum temperatures using average, single triangle, and single sine methods, with optional upper temperature thresholds. The application maps cumulative thermal accumulation to user-defined developmental stage thresholds and supports exporting tabular and graphical outputs. The degree-day approach follows assumptions described by Higley et al. (1986) <doi:10.1093/ee/15.5.999>.
License:	MIT + file LICENSE
Encoding:	UTF-8
RoxygenNote:	7.3.3
Depends:	R (≥ 4.1)
Imports:	shiny, DT, ggplot2
Suggests:	testthat (≥ 3.0.0)
Config/testthat/edition:	3
URL:	https://github.com/almarazkrae-4081/DegreeDayCalc
BugReports:	https://github.com/almarazkrae-4081/DegreeDayCalc/issues
NeedsCompilation:	no
Packaged:	2026-02-13 06:04:16 UTC; rosy_
Author:	Victor Manuel Almaraz Valle [aut, cre], J. Concepción Rodríguez Maciel [aut], Gustavo Ramírez Valverde [aut], Jaime Alfredo Urzua Gutierrez [aut], Manuel Alejandro Tejeda Reyes [aut]
Maintainer:	Victor Manuel Almaraz Valle <almarazkrae@gmail.com>
Repository:	CRAN
Date/Publication:	2026-02-17 21:40:14 UTC

DegreeDayCalc

Description

Launch the DegreeDayCalc Shiny application for degree-day phenology calculations and visualization of cumulative thermal requirements across life stages.

Usage

DegreeDayCalc()

Value

Runs a Shiny application in the default browser (or viewer).

Examples

if (interactive()) {
  DegreeDayCalc()
}

Compute degree-days from daily minimum and maximum temperatures

Description

Calculates daily degree-days (thermal units) from Tmin and Tmax using several common methods (average, triangular, sine). Optionally, an upper threshold (Tupper) can be applied in methods supporting it.

Usage

degree_days(
  Tmin,
  Tmax,
  Tbase,
  Tupper = NULL,
  method = c("average", "average_cut", "triangle", "triangle_upper", "sine",
    "sine_upper")
)

Arguments

Value

A numeric value (degree-days) rounded to 3 decimals.

Run the DegreeDayCalc Shiny application (internal helper)

Description

Internal helper that launches the bundled Shiny app.

Usage

run_app(...)

Arguments