CSIimport_unit: Import unit-value files for CSI calculation

In USGS-R/CSI: Coastal Salinity Index

Import unit-value files for CSI calculation

Description

Read in unit value salinity file.

Usage

CSIimport_unit(file, mindays = 15)

Arguments

file	character The unit-value file to import. Must have Year, Month, Day, and Time columns, or single Timestamp = 'YYYY-MM-DD HH:mm:ss', and columns of salinty values by site.
mindays	integer the minimum number of daily values (any number of values per day) needed to produce a mean value for a given month (default 15). Months with fewer data values than this will be asigned mean NA.

Value

A salinity object data.frame for calculating CSI values; has Year and Month timestamp columns, with (optionally multiple) individual columns of site salinity values.

Examples

# Data file with Year, Month, Day, and Time columns
data_path <- system.file("extdata", "Unitvalue_North_Inlet_ymdt.csv.zip", package="CSI")
unzip(data_path, exdir = getwd())
sal <- CSIimport_unit("Unitvalue_North_Inlet_ymdt.csv")

# Data file with single Timestamp column
data_path <- system.file("extdata", "Unitvalue_North_Inlet.csv.zip", package="CSI")
unzip(data_path, exdir = getwd())
sal <- CSIimport_unit("Unitvalue_North_Inlet.csv")

USGS-R/CSI documentation built on April 20, 2023, 3:57 p.m.