r_basics.R

# create a note with ctrl+shift+c

# example of addition in R
5 + 5

# example of multiplication in R
5 * 5

# example of division in R
5 / 5

#example of exponents in R
2^3

# examples of remainders in R
10 %% 3
10 %% 2

# PEMDAS:  P- Parentheses, E- Exponents, M- Multiplication, 
# D- Division, A- Addition, and S- Subtraction
# Use parentheses to change the order of operations

# Assigning a variable (binding)
random_example <- (5*5 / 3 + 20 ^ 4)

random_example

random_example / 6

# assign separate variables for different parts
part_1 <- 5*5 / 3
part_2 <- 20 ^ 4

part_2 + part_1

# variables can be overwritten
random_example <- 6

random_example

# Rules for variables
# No whitespace, can't start the name with a number or underscore
# Cannot use special keywords like if, function, or else
# variables should always be lowercase
# separate words should be separated by underscores for easy reading
# should clearly describe the value held by the variable