surfaceStartEnd: Surface date limits

In USGS-R/EGRET: Exploration and Graphics for RivEr Trends

Surface date limits

Description

Sets the Date limits to the surfaces being estimated from the Sample data set. The start is less than a year prior to the first date (typically the date of the first sample) and the end is less than a year after the last date (typically the date of the last sample). The start is constrained to be on the first day of the period of analysis and the end is constrained to be on the last day of the the period of analysis

Usage

surfaceStartEnd(paStart, paLong, Date1, Date2)

Arguments

paStart	numeric integer specifying the starting month for the period of analysis, 1<=paStart<=12, default is 10
paLong	numeric integer specifying the length of the period of analysis, in months, 1<=paLong<=12, default is 12
Date1	Date set to Date of earliest data in Sample.
Date2	Date set to Date of latest data in Sample.

Examples

eList <- Choptank_eList
Date1 <- eList$Sample$Date[1]
Date2 <- range(eList$Sample$Date)[2]
surfaceStartEnd(10, 12, Date1, Date2)

USGS-R/EGRET documentation built on Nov. 20, 2024, 7:45 p.m.