Convert between relative and absolute analytical uncertainties

Convert relative to absolute analytical uncertainties and vice versa in ASTR objects. Work only for objects of class ASTR.

Usage

rel_to_abs(df)

abs_to_rel(df)

Arguments

df

An ASTR object

Value

An ASTR object with converted analytical precision columns. The unchanged input, if it does not contain columns of the respective analytical precision type

Examples

test_file <- system.file("extdata", "test_data_input_good.csv", package = "ASTR")
arch <- read_ASTR(test_file, id_column = "Sample", context = 1:7)
#> Warning: 39 missing values across 12 analytical columns
#> Warning: See the full list of validation output with: ASTR::validate(<your ASTR object>).

arch2 <- abs_to_rel(arch)

arch3 <- rel_to_abs(arch2)

# Conversion is lossless
all.equal(arch$`SiO2_errSD`, arch3$`SiO2_errSD`)
#> [1] TRUE