EGRET (version 2.3.0)

readUserSample: Import user 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 combinded with interval censoring, additional columns can be inserted, each starting with remark code (specifically looking for

Usage

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

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

interactive

logical Option for interactive mode. If true, there is user interaction for error handling and data checks.

Value

• A data frame 'Sample' with the following columns: lll{ 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 }

See Also

compressData, populateSampleColumns

Examples

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