computeSeasonal: Compute sine and cosine terms for dates to use as seasonal...

In USGS-R/USGSHydroTools: Collection of functions for hydrological analysis

Compute sine and cosine terms for dates to use as seasonal terms in data analysis

Description

Function to compute seasonal sin and cosine terms from POSIXlt variable

Usage

computeSeasonal(df, date, return.var)

Arguments

df	dataframe with date included
date	string column name of date to convert in POSIXlt format
return.var	string suffix for variable names to return

Value

df

Examples

sampleData <- sampleData
sampleData$bpdate <- as.POSIXlt(sampleData$Hbpdate) #convert from POSIXct to POSIXlt
computeSeasonal(df=sampleData,date="bpdate",return.var="bdate")

USGS-R/USGSHydroTools documentation built on April 17, 2023, 8:09 p.m.