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]