Sequences.R

seq(1,20)

##  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20

seq(0,10, by= 0.5)

##  [1]  0.0  0.5  1.0  1.5  2.0  2.5  3.0  3.5  4.0  4.5  5.0  5.5  6.0  6.5  7.0
## [16]  7.5  8.0  8.5  9.0  9.5 10.0

my_seq <- seq(5,10,length=30)
length(my_seq)

## [1] 30

1:length(my_seq)

##  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
## [26] 26 27 28 29 30

seq(along.with = my_seq)

##  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
## [26] 26 27 28 29 30

seq_along(my_seq)

##  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
## [26] 26 27 28 29 30

rep(0, times = 40)

##  [1] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
## [39] 0 0

rep(c(0,1,2), times = 10)

##  [1] 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2

rep(c(0,1,2), each=10)

##  [1] 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2

num_vect <- c(0.5,55,-10,6)
tf <- num_vect <1
tf

## [1]  TRUE FALSE  TRUE FALSE

num_vect >= 6

## [1] FALSE  TRUE FALSE  TRUE

my_char <- c("My", "name", "is")
my_char

## [1] "My"   "name" "is"

paste(my_char, collapse = " ")

## [1] "My name is"

my_name <- c(my_char, "Sasha")
my_name

## [1] "My"    "name"  "is"    "Sasha"

paste(my_name, collapse = " ")

## [1] "My name is Sasha"

paste("Hello", "world!", sep = " ")

## [1] "Hello world!"