Introducción a R

Vectores

a<- c(6, 9, 13, 15)

h<- c(8, 5, 6, 9)
h

## [1] 8 5 6 9

a<- c("PAN", "PRI", "MORENA", "PRD")
a

## [1] "PAN"    "PRI"    "MORENA" "PRD"

a<- 1:5
a

## [1] 1 2 3 4 5

a<-seq(from=0, to=100, by=2)
a

##  [1]   0   2   4   6   8  10  12  14  16  18  20  22  24  26  28  30  32  34  36
## [20]  38  40  42  44  46  48  50  52  54  56  58  60  62  64  66  68  70  72  74
## [39]  76  78  80  82  84  86  88  90  92  94  96  98 100

a<-rep(50, times=100)
a

##   [1] 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50
##  [26] 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50
##  [51] 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50
##  [76] 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50

Objetos

a<-1
b<-100
c<- a+b
c

## [1] 101

Matrices

cbind(1:5, 6:10, 11:15)

##      [,1] [,2] [,3]
## [1,]    1    6   11
## [2,]    2    7   12
## [3,]    3    8   13
## [4,]    4    9   14
## [5,]    5   10   15

rbind(1:5, 6:10, 11:15)

##      [,1] [,2] [,3] [,4] [,5]
## [1,]    1    2    3    4    5
## [2,]    6    7    8    9   10
## [3,]   11   12   13   14   15

matrix(1:12, nrow=3, ncol=4)

##      [,1] [,2] [,3] [,4]
## [1,]    1    4    7   10
## [2,]    2    5    8   11
## [3,]    3    6    9   12

Funciones

a<-1
b<- 100
suma<- a+b
suma

## [1] 101

Dataframe

base1 <- data.frame("edad" = c(19, 21), "sexo" = c("M", "H"))

library(help="datasets")