Function reference • point

Reading ion count data

Checking files, and loading ion count data and associated meta-data.

ICdir_chk(): Check if directory is suitable for point

point_example(): Get path to point example

read_IC() read_meta(): Read raw ion count data

unfold() fold(): Access and hide IC metadata

Correcting ion count data

Functions to correct pulsed ion coun data for systematic machine-induced biases.

cor_IC(): Process raw ion count data

cor_yield() cor_DT(): Correct ion detection bias

QSA_test(): QSA test

predict_ionize(): Predicting trends in ionization efficiency

zeroCt(): Remove analytical runs with zero counts

Analysing ion count data

Functions to calculate internal and external precision of pulsed ion count data of single ions and ion ratios.

stat_X() stat_R(): Analyse raw ion count data

stat_SDprop(): Propagation of errors for isotope ratios

Diagnostics of ion count data

Functions to check for internal consistency of ion count ratio data; enabling detection of isotopic variability in the analyte.

diag_R(): Diagnostics isotope count data

Cameca() CooksD() CV() Rm() norm_E() QQ() IR(): Family of diagnostics functions for isotope count ratios

eval_diag(): Evaluate effect size and significance of outliers on R

formula_parser(): Linear model parser

Miscellaneous tools to handle ion count data

Functions for easy plotting and printing of ion count data.

cov_R(): Function for co-variate conversion of isotope systems

ion_labeller() R_labeller() stat_labeller(): Chemical species names for plots and tables

twodens(): Plotting highly dens data (inspired by Thomas Mock)

Helpers for isotope systematics

Converting between relative and absoluate isotope abudance and delta notation.

calib_R(): Calibration of isotope ratios

reference_R: The reference materials used for common isotope systems after the USGS)

Datasets

Real and simulated data as well as information on methods

names_cameca: The data associated with Cameca NanoSIMS 50L

names_model: The regression model names associated with point::diag_R()

names_plot: The plot types for diagnostic tests available in point

names_stat_R: The statistics associated with point::stat_R()

names_stat_X: The statistics associated with point::stat_X()

simu_IC: Simulated ion count dataset

simu_R(): Simulate ion count data

cameca_stat_R: Reference Cameca R statistics

cameca_stat_X: Reference Cameca X statistics

real_IC: Real ion count dataset

point: point: A package for reading, processing, and analysing raw ion count data.