# ggstudent: Continuous Confidence Interval Plots using t-Distribution

By Jouni Helske in R Package Visualization

July 1, 2020

Provides an extension to ‘ggplot2’ (Wickham, 2016, doi:10.1007/978-3-319-24277-4) for creating two types of continuous confidence interval plots (Violin CI and Gradient CI plots), typically for the sample mean. These plots contain multiple user-defined confidence areas with varying colours, defined by the underlying t-distribution used to compute standard confidence intervals for the mean of the normal distribution when the variance is unknown. Two types of plots are available, a gradient plot with rectangular areas, and a violin plot where the shape (horizontal width) is defined by the probability density function of the t-distribution.

- Posted on:
- July 1, 2020

- Length:
- 1 minute read, 92 words

- Categories:
- R Package Visualization

- See Also: