Calculate Concavity — calculate

Calculate the concavity of the Quadratic Model.

Usage

calculate_concavity(
  curve_data,
  conc_var,
  signal_var,
  dilution_data = lifecycle::deprecated()
)

Arguments

curve_data: A data frame or tibble containing curve data.
conc_var: Column name in curve_data to indicate concentration.
signal_var: Column name in curve_data to indicate signal.
dilution_data: dilution_data was renamed to curve_data.

Value

The concavity of the Quadratic Model.

Details

The function will return NA if the number of curve points is less than or equal to three.

Examples

concentration <- c(10, 20, 40, 60, 80, 100)

signal <- c(22561, 31178, 39981, 48390, 52171, 53410)

curve_data <- data.frame(Concentration = concentration,
                         Signal = signal)

concavity_value <- calculate_concavity(
  curve_data,
  "Concentration",
  "Signal"
)

concavity_value
#> [1] -4.089199