Window Pane for Epidemiological Analysis

This function calculates summary statistics within specified windows around a given end date in a dataset, facilitating epidemiological analysis. It allows backward, forward, or both directions of window calculations based on a user-defined variable and window lengths.

Usage

windowpane(
  data,
  end_date_col,
  date_col,
  variable,
  summary_type,
  threshold = NULL,
  window_lengths,
  direction = "backward",
  group_by_cols = NULL,
  date_format = "%Y-%m-%d"
)

Arguments

data: A data frame containing the input data.
end_date_col: A string specifying the name of the column representing the end date.
date_col: A string specifying the name of the column representing the date variable.
variable: A string specifying the name of the column for which summary statistics are calculated.
summary_type: A string specifying the type of summary to calculate. Options are "mean", "sum", "above_threshold", or "below_threshold".
threshold: Optional numeric value used when summary_type is "above_threshold" or "below_threshold".
window_lengths: A numeric vector specifying the window lengths (in days) for the calculations.
direction: A string specifying the direction of the window. Options are "backward" (default), "forward", or "both".
group_by_cols: Optional vector of strings specifying column names for grouping the data.
date_format: A string specifying the format of the date columns. Default is "%Y-%m-%d".

Value

A data frame with the calculated summary values for each window.