Function that calculates % of population > Y-value at a given X-value

Function that calculates % of population > Y-value at a given X-value

Usage

pct_above_y_at_x(
  model_is_valid = FALSE,
  input_df,
  y_name = "DV",
  y_value = NA,
  x_name = "TIME",
  x_value = NA,
  return_number_ids = FALSE
)

Arguments

model_is_valid

checkpoint before rest of function proceeds, default FALSE

input_df

Dataset containing ID column with more than 1 ID

y_name

Name of column (string) for Y-value

y_value

Y-value threshold (>), e.g. plasma concentration

x_name

Name of column (string) for X-value

x_value

X-value threshold (==), e.g. time

return_number_ids

Return number of IDs that fits the criteria instead of % Default FALSE

Value

a numeric (either as a proportion (from 0 to 1, where 0 means 0% and 1 means 100%), or the actual number of IDs)