hydrometer_percent_finer_D_x: Calculate % finer than a given diameter for a single sample

In evanmascitti/soiltestr: Functions for Laboratory Soil Testing

Calculate % finer than a given diameter for a single sample

Description

Calculate % finer than a given diameter for a single sample

Usage

hydrometer_percent_finer_D_x(calculations_df, d_microns)

Arguments

d_microns

the ESD particle diameter for which % finer is being computed. This is not passed as an argument in the function call but instead is found in the caller environment (which is the wrapper to loop over any number of particle diameters). I could have just defined this function inside the other one, but it was getting pretty long so I decided to break this outside of its wrapper.

Details

Finds two particle diameters which bracket that number and then fits a model as percent_passing ~ log10(microns). Lastly it predicts the value for the specified diameter using that model object.

This function is then wrapped by another which generalizes it to a d_microns vector of any length, so long as the values fall between those measured during the hydrometer test

Value

data frame containing the original metadata along with the micron value of interest and the corresponding percent passing...for a single particle diameter

evanmascitti/soiltestr documentation built on Oct. 6, 2022, 5:32 p.m.