Plot a smoothed density plot of the null distribution

Source: R/PlotNullDistribution.R

Determines the rank of the mean absolute value of the standardized treatment effect using any placebo analyses that survive a user specified Cohen's D threshold ways to use the placebo distribution to calculate a mean value (e.g., mean p-value or another test statistic). This is a simple example of one such way.

PlotNullDistribution(
  CohensD = 999,
  StartTime = TreatmentBeginsAt,
  EndTime = nrow(SCUL.output$y.actual),
  width = 5,
  height = 2.76,
  AdjustmentParm = 1,
  BandwidthParm = 0.25,
  y_label = "",
  subtitle_label = "",
  x_label = "Distribution of standardized difference\n for placebo donor pool",
  title_label = "Cohen's-D restriction: None",
  rejection_label = "Rejection region\n for null hypothesis\n of no treatment effect",
  save.figure = FALSE,
  OutputFilePath = SCUL.input$OutputFilePath,
  TreatmentBeginsAt = SCUL.output$TreatmentBeginsAt
)

Arguments

CohensD

A real number greater than 0, indicating the Cohen's D threshold at which fit is determined to be "poor". The difference is in standard deviation units. Default is SCUL.input$CohensDThreshold.
StartTime

The begining time period for which the average pseduo treatment effect is calculated. T
EndTime

The end time period for which the average pseduo treatment effect is calculated. T
width

width of histogram. Default is 20
height

height of histogram. Default is 0.05
AdjustmentParm

Adjustment parameter for guassian histogram. Default is 3.
BandwidthParm

Bandwidth parameter for guassian histogram. Default is 3.
y_label

label for the y-axis
subtitle_label

Graph sub-title
x_label

label for the x-axis
title_label

Graph title
rejection_label

Label for the top of the red rejection region
save.figure

Boolean, set to TRUE if you want output saved as figure to OutputFilePath automatically. Default is FALSE
OutputFilePath

Output file path. Default is SCUL.input$OutputFilePath.
TreatmentBeginsAt

An integer indicating which row begins treatment. Default is SCUL.output$TreatmentBeginsAt.

Value

graph A denisty plot of the null distribution conditional on satisfactory fit