title	author	date	output	institution
contingency table & ROC	PhD Flavio Lichtenstein	2071, July 17th	html_document	Biomolecular Lab - Instituto Butantan / SP - Brazil

knitr::opts_chunk$set(echo = TRUE)

Contingency table, statistics and independence

Here we will present a first study about Contingency Table. The classes belonging to the table will be compared, and we will infer it they are independent. The statistics that will be used is the chi-square statistics, and also the chi-square hypothesis test.

Contingency Table and chi-square

ROC: sensitivity x specificity

Two distributions - t-student test (t.test)

Here we will present 2 distributions and make them close togheter or far appart to observe the sensitivity, specificity and to calculate the ROC (receiver operating curve)

Sensitivity, Specificity and ROC (receiver operating curve)