Create multiple histograms using ggplot2::facet_wrap() to visualize how a variable (e.g., Sepal.Length) is distributed across different groups (e.g., Species) in a built-in R dataset.

Here i perform a basic Exploratory Data Analysis

Risk and protective factors

PROGRAM 9

Develop a r program to calculate and visualize a correlation matrix for a given data set, with color coded cells indicating the strength and direction of correlations, using ggplot2 geom_tile function.