lineplot: Line Plot

In melren/effiplot: Flexible functions to create plots for efficacy analysis in clinical studies

Description

Generate a flexible longitudinal/spaghetti plot for endpoint analysis with options to facet and add marker lines

Usage

lineplot(data, x, y, group_by = aggr, facet = NULL, stat = NULL,
  aggr = "USUBJID", show_n = TRUE, log_y = FALSE, title = "",
  xlab = "Visit Day", ylab = "AVAL", symb = NULL, markers = NULL,
  caption = "", size = "small", max_lvl = 8)

Arguments

data	a dataframe containing the input data to plot (dataframe)
x	column name for x-axis parameter (string)
y	column name for y-axis parameter (string)
group_by	a column name containing a subgrouping factor to split the plot by (string)
facet	optional parameter, column name containing a subgrouping factor to facet the plot by (string)
stat	optional parameter, type of summary statistic to compute on y-variable, choose "mean" or "median" if y is not already summary-level data (string)
aggr	column name used to compute aggregate counts (n = ) in legend, default is "USUBJID" (string)
show_n	boolean parameter for displaying counts from aggr, default is TRUE (logical)
log_y	optional parameter, boolean for whether to use a log scale for y-axis, default is FALSE (logical)
title	optional parameter, custom plot title (string)
xlab	optional parameter, custom x-axis plot label (string)
ylab	optional parameter, custom y-axis plot label (string)
symb	optional parameter to shape markers by a factor type column (string)
markers	optional parameter, list of special interest x-axis values to display vertical dashed marker lines (numeric list/series)
caption	optional string to include as a caption on bottom of plot (string)
size	optional string to specify font size schema ("small" for PDF usage or "large" for Shiny apps) to use for plot, default is "small" (string)
max_lvl	optional parameter, maximum levels group_by can have before legend is hidden (integer)

Value

produces a line plot with study endpoint measurements over time

Examples

lineplot(data = AZA, x = "ADY", y = "AVAL", group_by = "USUBJID", facet = "CHRTGRP",
  symb = "EPOCH", markers = c(45, 85), ylab = "Ulcer Area")
lineplot(data = AZA, x = "ADY", y = "PDCR", group_by = "USUBJID", facet = "CHRTGRP", log_y = TRUE,
  symb = "EPOCH", ylab = "Percent Decrease in Ulcer Area")
lineplot(data = AZA, x = "ADY", y = "PDCR", group_by = "CHRT",
  stat = "mean", ylab = "Mean % Decrease in Area", size = "large")

melren/effiplot documentation built on May 4, 2019, 7:37 a.m.