Builds Chronologies from Oxygen Isotope Profiles in Shells

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Documentation for package ‘ShellChron’ version 0.4.0

• DESCRIPTION file.
• Package NEWS.

Help Pages

age_corr	Function that corrects chronologies for sudden jumps in time
cumdy	Function to detect year transitions and calculate cumulative age of model results
cumulative_day	Function to detect year transitions and calculate cumulative age of model results
d18O_model	Function to convert SST data to d18O
data_import	Function to import d18O data and process yearmarkers and calculation windows
export_results	Function to merge and export the results of the ShellChron model
growth_model	Function that models a d18O curve through SST and GR sinusoids
growth_rate_curve	Function that creates a skewed sinusoidal growth rate (GR) curve from a list of parameters
mc_err_form	Function that propagates measurement uncertainty through model results
mc_err_orth	Function that propagates measurement uncertainty through model results
mc_err_proj	Function that propagates measurement uncertainty through model results
peakid	Function that identifies peaks in a dataset
run_model	Function that optimizes sinusoid parameters to fit d18O data
sd_wt	Function to calculate weighted standard deviation
sinreg	Function that carries out a sinusoidal regression
temperature_curve	Function that creates a sinusoidal Sea Surface Temperature (SST) curve from a list of parameters
Virtual_shell	Virtual input data for ShellChron
wrap_function	Full ShellChron workflow wrapped in a single function