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Read Concise Error Notation

parse_concise.Rd

Convert a vector of strings of the form: c("1.2(3)E-4","1.2(3)E-2") to a matrix with two rows:

  1. values,

  2. uncertainties.

Usage

parse_concise(v, use.errors = requireNamespace("errors"))

Arguments

v

a character vector of numbers in concise error notation

use.errors

if TRUE, the errors package will be used to retrun an object of type "errors" (from that package).

Value

either a numeric object with class errors (with the same dimensions as v), or a numeric matrix of values and uncertainties (2 rows), dimensions of original object are lost

Details

If the errors package is available, then an errors object is returned instead (uncertainties are an attribute). In that case the dimensions of v are preserved on output. You can override this choice using the second argument use.errors.

Concise error notation means that a floating point number is followed by an integer in parentheses which indicates the uncertainty of the last digits of the value: 1.2345(12) = 1.2345 ± 0.0012.

If the errors package is installed, then it will be used to represent the return value.