read: Read data from file

In astrochron: A Computational Tool for Astrochronology

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!

astrochron documentation built on Sept. 30, 2024, 9:14 a.m.