nd_thre: Function to compute the number of days exceeding (either...

View source: R/indicesFAO_tier1.R

nd_threR Documentation

Function to compute the number of days exceeding (either below or above) a given threshold

Description

Function to compute the number of days exceeding (either below or above) a given threshold

Usage

nd_thre(
  any,
  dates,
  threshold,
  direction = "geq",
  year = NULL,
  year.start = NULL,
  year.end = NULL,
  pnan = 25,
  lat = NULL
)

Arguments

any

Vector with data of ANY variable (e.g. daily mean temperature)

dates

Matrix containing the full range of dates corresponding to "data" (ndates x 3 size); e.g. rbind(c(1995, 3, 1), c(1995, 3, 2), ...)

threshold

Threshold considered. Must be in the same units of "data"

direction

"geq" (greater or equal to) or "leq" (lower or equal to)

year

Vector with years of interest (e.g. 1990:1995)

year.start

Vector of dates [in "YYYY-MM-DD" format] defining the beginning of a portion of interest within each year (e.g., the agronomic season)

year.end

Vector of dates [in "YYYY-MM-DD" format] defining the end of a portion of interest within each year (e.g., the agronomic season)

pnan

Any year with a percentage of NA data above "pnan" will be ignored

lat

Latitude (NULL) to indicate that latitude information is not used.

Value

Number of days (per year)

Author(s)

R. Manzanas


SantanderMetGroup/climate4R.indices documentation built on July 3, 2023, 11:02 p.m.