read_6800_txt: Reads 6800 text files and creates a tibble with gas-exchange...

In gasanalyzer: Import, Recompute and Analyze Data from Portable Gas Analyzers

Reads 6800 text files and creates a tibble with gas-exchange data.

Description

The text files stored by the 6800 contain measured and calculated values that are read by this function and formatted in a large tibble for use with R. Constants and metadata (such as calibration information) are also added as columns. Note that no recalculation of derived variables is performed, although it is possible to so using recalculate() after importing the data.

Usage

read_6800_txt(filename)

Arguments

filename

an text file containing 6800 gas-exchange data.

Details

Multiple files can be loaded by calling the function with lapply() or purrr::map() to merge multiple files. In this case, it is important to ensure that the column names will match.

Value

A tibble with gas-exchange data in columns.

See Also

recalculate()

Examples

exampledir <- system.file("extdata", package = "gasanalyzer")
# import factory calibration for example data:
import_factory_cals(exampledir)

# read data
li6800 <- read_6800_xlsx(paste0(exampledir, "//lowo2.xlsx"))
li6800_txt <- read_6800_txt(paste0(exampledir, "//lowo2"))

# compare all except equations. Note txt file reports some NAs as zero:
columns_to_check <- names(li6800)[!names(li6800) %in%
                                   c("gasanalyzer.Equations")]
all.equal(li6800[columns_to_check],
          li6800_txt[columns_to_check],
          tol = 0.01)

gasanalyzer documentation built on May 29, 2024, 8:14 a.m.