convert_summary_to_log10 {invivoPKfit}R Documentation

Convert sample mean and SD to log10-scale

Description

Estimate log10-scale sample mean and standard deviation from natural-scale sample mean and standard deviation

Usage

convert_summary_to_log10(sample_mean, sample_SD)

Arguments

sample_mean

Numeric: one or more sample means

sample_SD

Numeric: one or more sample SDs

Details

\bar{y}_i is the natural-scale sample mean for group i. s_i is the natural-scale sample standard deviation for group i.

\textrm{log10-scale sample mean}_i = \log_{10} \left(\frac{\bar{y}_i^2}{\sqrt{\bar{y}_i^2 + s_i^2}} \right)

\textrm{log10-scale sample SD}_i = \sqrt{ \log_{10} \left(1 + \frac{s_i^2}{\bar{y}_i^2} \right) }

Value

A list with two named elements: "log10mean" and "log10SD", the log10-scale sample means and log10-scale sample SDs, respectively.

Author(s)

Caroline Ring


[Package invivoPKfit version 2.0.1 Index]