write_gslib: Export a Data Frame to Simplified GeoEase Format Used by...

In truemoid/rgslib: R Interface to GSLIB/CCG Programs

Description

write_gslib writes a data frame to the GeoEase format used by GSLIB programes. GeoEase has a standard header with a title and number and names of the columns. The title can be supplied or is built automatically from meta- data in the data frame or the name of the data frame object. Only numeric columns are written to the system file and they are rounded.

Usage

write_gslib(data, path, round = 4, title = NULL, griddim = NULL,
  gridxyz = NULL, gridrealz = NULL)

Arguments

data	Data frame to write to disk, only numeric columns are exported.
path	Path or connection to write to.
round	Integer scalar, number of digits to round data before export.
title	Character title to be appended to GeoEase file. If not supplied it will be determined from data meta-data or it's name.
griddim	Numeric vector of xyz grid dimensions. Length 2 for 2D.
gridxyz	Character vector of grid xyz coordinate columns.
gridrealz	Scalar integer number of realizations if grid file.

Details

If grid argument griddim is given a grid definition will be written to the output GeoEase file. If there is more than 1 realization in the grid data the the input data frame (data) must be sorted by realization and must have the same number of records for each realization.

Value

write_gslib returns the input data invisibly. The function side-effect is a GeoEase-format system file.

Examples

samples_na <- samples_2d
samples_na[3:7, 5] <- NA
write_gslib(samples_na, "samples-na.dat", round = 3, title = "sample data")

truemoid/rgslib documentation built on May 30, 2019, 2:14 p.m.