add_solar_noon: Add a logical column indicating whether the sample was taken...

In PatrickEslick/CyAN: Interact with CyAN data

Description

Solar noon is defined as 1000 - 1400, extended solar noon is defined as 0900 - 1500

Usage

add_solar_noon(cyan_data)

Arguments

cyan_data

a data frame from get_cyan_data() with collect = TRUE

Value

cyan_data with two additional logical columns, solar_noon indicating if the sample was taken during solar noon and ext_solar_noon indicating if the sample was taken during extended solar noon.

Examples

#Connect to the example database bundled with CyAN
path <- system.file("extdata", "example.db", package = "CyAN")
db_connection <- connect_cyan(path)

#Get all of the chlorophyll and chlorophyll-a data (parameter id P0051 & P0054)
#or the state of Kansas in the year 2016
ks_chl_2016 <- get_cyan_data(db_connection, collect = TRUE,
                             years = 2016,
                             parameters = c("P0051", "P0054"),
                             states = "KS",)

#Add logical columns for solar noon and extended solar noon
ks_chl_2016_wsolarnoon <- add_solar_noon(ks_chl_2016)

PatrickEslick/CyAN documentation built on Oct. 2, 2019, 5:50 p.m.