fic: Frequency of intensity changes

In steffenhartmeyer/lightdosimetry: Functions for quantifying personal light exposure data

Frequency of intensity changes

Description

This functions calculates the times a given threshold intensity is crossed.

Usage

fic(lightVar, threshold, na_rm = FALSE, as_df = TRUE, wide = TRUE)

Arguments

lightVar	Numeric vector containing the light data.
threshold	Single numeric value or vector specifying threshold intensities. The sign indicates above/below (see threshold).
na_rm	Logical. Should missing light values be removed? Defaults to FALSE.
as_df	Logical. Should the output be returned as a data frame? Defaults to TRUE.
wide	Logical. Should the output be returned in wide format? Defaults to TRUE.

Value

Data frame or matrix with pairs of threshold and calculated values. If 'wide' is TRUE then variable names will be concatenated with the threshold.

References

Alvarez, A. A., & Wildsoet, C. F. (2013). Quantifying light exposure patterns in young adult students. Journal of Modern Optics, 60(14), 1200–1208. https://doi.org/10.1080/09500340.2013.845700

steffenhartmeyer/lightdosimetry documentation built on Jan. 29, 2024, 12:48 p.m.