Coding basics
R as a calculator
1000 / 10
## [1] 100
assignment symbol
#object_name <- value
# Short cut = option + - (minus sign)
x<- 1000/10
x
## [1] 100
What’s in a name?
#R is sensitive. The objects name needs to start with a letter, it can only contain letters, numbers, _ and .
# When printing the name, make sure it is spelled correctly.
Calling functions
Use of TAB
seq(from = 1, to = 10, by = 1)
## [1] 1 2 3 4 5 6 7 8 9 10
continuation character, +
seq(from = 1, to = 10)
## [1] 1 2 3 4 5 6 7 8 9 10
#If the last parentency were missing, R would show + as a symbol, to indicate that it is missing value
Printing to screen
y <-seq(from = 1, to = 10)
#When saving a code to a name, R won't print the result. Type the saved name bellow to print.
y
## [1] 1 2 3 4 5 6 7 8 9 10
#Or souround the calling function with a ()
(y <-seq(from = 1, to = 10))
## [1] 1 2 3 4 5 6 7 8 9 10