readMatrix {astrochron}R Documentation

Read data matrix from file

Description

Read data matrix from a file, either tab-delimited, CSV, or semicolon-delimited.

Usage

readMatrix(file=NULL,d=1,h="auto",skip=0,output=1,check=T,genplot=F,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

output

Return data as: 1= matrix, 2=data frame

check

Check for empty entries in the matrix? (T or F).

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]