Intro Biostatistics Resources

R Tutorials

Extra R Practice

Looking for extra coding practice? I’ve made some additional exercises here

Shiny Apps

ANOVA
Statistical Inference
App to demonstrate intuition behind ANOVA
Haley Grant

Collinearity in MLR
Regression
App to demonstrate how collinearity leads to variance inflation
Haley Grant

Confidence Intervals and Prediction Intervals
Statistical Inference
Regression
App to demonstrate intuition behind confidence vs prediction intervals
Haley Grant

Inference Visualization
Sampling Distributions
Statistical Inference
App to visualize the relationship between confidence intervals and hypothesis testing
Haley Grant

Inference for Proportions
Sampling Distributions
Statistical Inference
App to visualize Z-test and exact binomial tests for proportions
Haley Grant

KNN
Classification
App to demonstrate how the KNN classifier works
Haley Grant

LOESS Smoother
Regression
App to demonstrate underlying mechanism of LOESS smoother
Haley Grant

Least Squares Regression Visualization
Regression
App to visualize the method of least squares
Haley Grant

Logistic Function Visualization
Regression
App to show the relationship between log odds and probability (logistic regression)
Haley Grant

Multiple Linear Regression
Regression
App to visualize regression with multiple predictors; adjusting for other covariates
Haley Grant

Paired vs Unpaired T: Variance
Statistical Inference
App to the variance of the difference of two sample means when data are correlated vs uncorrelated
Haley Grant

Power and Sample Size
Sampling Distributions
Statistical Inference
App to visualize statistical power
Haley Grant

QQ Plot Visualization Tool
Probability Distributions
App to understand QQ plots
Haley Grant

ROC Curves
Regression
App to visualize ROC curves, sensitivity, and specificity
Haley Grant

Regularization
Regression
App to demonstrate how regularized regression works
Haley Grant

Sampling Activity
Sampling Distributions
In-class activity to simulate a sampling distribution
Haley Grant

Sampling Distributions and Bootstrapping
Statistical Inference
App to visualize bootstrapping
Haley Grant

Standard Normal Distribution Visualization
Probability Distributions
App to visualize standard normal probabilities and quantiles
Haley Grant

T Test Visualization
Statistical Inference
App to show intuition behind t-tests
Haley Grant

T under null vs alt
Statistical Inference
App to demonstrate distribution of test statistics under null and alternative
Haley Grant
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