EGRET (version 3.0.9)

removeDuplicates: Remove duplicates values from Sample data frame.

Description

Removes observations from the data frame Sample when the observation has the identical date and value as another observation

Usage

removeDuplicates(Sample)

Value

A data frame 'Sample' with the following columns:

Name	Type	Description
Date	Date	Date
ConcLow	numeric	Lower limit of concentration
ConcHigh	numeric	Upper limit of concentration
Uncen	integer	Uncensored data (1=TRUE, 0=FALSE)
ConcAve	numeric	Average concentration
Julian	integer	Number of days since Jan. 1, 1850
Month	integer	Month of the year [1-12]
Day	integer	Day of the year [1-366]
DecYear	numeric	Decimal year
MonthSeq	integer	Number of months since January 1, 1850
SinDY	numeric	Sine of the DecYear
CosDY	numeric	Cosine of the DecYear

Arguments

Sample

dataframe with at least DecYear and ConcHigh, default name is Sample

Examples

DecYear <- c('1985.01', '1985.01', '1985.02', '1985.02', '1985.03')
ConcHigh <- c(1,2,3,3,5)
dataInput <- data.frame(DecYear, ConcHigh, stringsAsFactors=FALSE)
Sample <- removeDuplicates(dataInput)