tabulate_lod: Tabulate limit of detection estimates

In benmbutler/powdR: Full Pattern Summation of X-Ray Powder Diffraction Data

Description

tabulate_lod takes a powdRfps or powdRafps object and estimates the limit of detection of quantified phases using a hypothetical limit of detection of an internal standard and its reference intensity ratio.

Usage

tabulate_lod(x, type, std_rir, std_lod, ...)

Arguments

x	a powdRfps or powdRafps object.
type	one of 'all' or 'grouped'. Specifies whether results are grouped by phase names. Default = grouped.
std_rir	a numeric value specifying the reference intensity ratio of a hypothetical internal standard.
std_lod	a numeric value specifying an estimated limit of detection (weight percent) for the hypothetical internal standard.
...	other arguments

Value

a data frame.

Examples

## Not run: 
#Load the minerals library
data(minerals)

Load the soils data
data(soils)

fps_sand <-  fps(lib = minerals,
                 smpl = soils$sandstone,
                 refs = minerals$phases$phase_id,
                 std = "QUA.1",
                 align = 0.2)

#Tabulate lod estimates based on the assumption that
#0.1 % quartz can be detected, with a RIR of 5.
tabulate_lod(fps_sand,
              std_rir = 5,
              std_lod = 0.1)

## End(Not run)

benmbutler/powdR documentation built on Nov. 29, 2021, 1:05 p.m.