read {astrochron}R Documentation

Read data from file

Description

Read stratigraphic data series from a file, either tab-delimited, CSV, or semicolon-delimited. First column MUST contain location data (depth, height, time). The function will remove missing entries, sort by location, average duplicate values, and generate summary plots.

Usage

read(file=NULL,d=1,h="auto",skip=0,srt=T,ave=T,check=T,genplot=T,verbose=T)

Arguments

file

An optional file name, which must be in quotes (use the full directory path if the file is not in your present working directory). When a file name is not specified (the default), the file will be selected using a graphical user interface.

d

What column delimiter is used? (0 = tab/.txt, 1 = comma/.csv, 2 = semicolon). CSV is the default option, which interfaces well with EXCEL.

h

Does the data file have column titles/headers? ("yes", "no", "auto"). "auto" will auto detect column titles/headers, which must be single strings and start with a character.

skip

Number of lines to skip before beginning to read file

srt

Sort data values by first column? (T or F)

ave

Average duplicate values? (T or F). Only applies if input file has 2 columns

check

Check for sorting, duplicates, and empty entries in the data frame? (T or F). If set to F, sorting, duplicate averaging and empty entry removal are disabled.

genplot

generate summary plots (T or F).

verbose

Verbose output? (T or F).

Details

Missing values (in the file that you are reading from) should be indicated by 'NA'. If you have included characters in the column titles that are not permitted by R, they will be modified!


[Package astrochron version 1.1 Index]