Forward transformation for linear BLQ data — ftrans_blq_linear • pmxTools

For ggplot2 scales.

Usage

ftrans_blq_linear(lloq, multiplier)

ftrans_blq_log(lloq, multiplier, base = 10)

Arguments

lloq: The value of the lower limit of quantification as a numeric scalar
multiplier: When data are < lloq, they are replaced by lloq*multiplier for display.
base: The base for the logarithm

Value

A function of x that replaces x < lloq with lloq*multiplier

Functions

ftrans_blq_log(): Log-scale transformation

See also

Other BLQ Transformation: blq_trans(), breaks_blq_general(), estimate_lloq(), itrans_blq_linear(), label_blq()

Examples

ftrans_blq_linear(lloq=1, multiplier=0.5)(c(0.2, 1, 5))
#> [1] 0.5 1.0 5.0
ftrans_blq_log(lloq=1, multiplier=0.5)(c(0.2, 1, 5))
#> [1] -0.30103  0.00000  0.69897