Learn R Programming

photobiologyInOut (version 0.4.13)

read_FReD_csv: Read '.CSV' FReD database.

Description

Reads a CSV data file downloaded from the FReD (Floral Reflectance Database) and then imports wavelengths and spectral reflectance values and flower ID.

Usage

read_FReD_csv(file, date = NA, geocode = NULL, label = NULL, tz = NULL,
  locale = readr::default_locale())

Arguments

file

character string

date

a POSIXct object, but if NULL the date stored in file is used, and if NA no date variable is added

geocode

A data frame with columns lon and lat.

label

character string, but if NULL the value of file is used, and if NA the "what.measured" attribute is not set.

tz

character Time zone used for interpreting times saved in the file header.

locale

The locale controls defaults that vary from place to place. The default locale is US-centric (like R), but you can use locale to create your own locale that controls things like the default time zone, encoding, decimal mark, big mark, and day/month names.

Value

A reflectance_spct object.

References

http://www.reflectance.co.uk Arnold SEJ, Faruq S, Savolainen V, McOwan PW, Chittka L, 2010 FReD: The Floral Reflectance Database <U+2014> A Web Portal for Analyses of Flower Colour. PLoS ONE 5(12): e14287. doi:10.1371/journal.pone.0014287