EGRET (version 3.0.7)

readUserSample: Import user-supplied sample data for EGRET analysis

Description

Imports data from a user-supplied file, and converts it to a Sample data frame (including summing multiple constituents), appropriate for EGRET analysis. First column is date, second is remark code, and third is value. If multiple constituents are to be combined with interval censoring, additional pairs of columns can be inserted, each pair starting with remark code (specifically looking for <), followed by the values.

Usage

readUserSample(filePath, fileName, hasHeader = TRUE, separator = ",",
  verbose = TRUE, interactive = NULL)

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

filePath

character specifying the path to the file

fileName

character name of file to open

hasHeader

logical true if the first row of data is the column headers

separator

character character that separates data cells. , default is "," which is separator used in a .csv file.

verbose

logical specifying whether or not to display progress message

interactive

logical deprecated. Use 'verbose' instead

See Also

compressData, populateSampleColumns

Examples

filePath <- system.file("extdata", package="EGRET")
fileName <- 'ChoptankRiverNitrate.csv'
Sample <- readUserSample(filePath,fileName, separator=";",verbose=FALSE)