R Snippets

R_snippets_rattlebag.rmd

# R Snippets
## How to use this file
Just open the file and search for key term. Or you can browse by heading (# or ##)

## Tables
To make a table:
Table is a function that produces a column or row wise table that counts the number of observations across two variables. 
Variable one will be a row (1st or horizontal dimension) and variable 2 will be the columns (2nd or vertical dimension). 

table(dataset$Variable_1, dataset$Variable_2)

prop.table(table(train$Sex, train$Survived),1)


## Simple plot

# Plot data
plot(x = age, 
     y = exp, 
     xlim = c(20, 50), 
     ylim = c(0, 20), 
     pch = 16,
     col = "blue")

# Add id labels
text(x = age, 
     y = exp,
     labels = name, 
     pos = 3,  # Put labels above the points
     cex=0.5)  # Set font size