CW12825

R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.

When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

data<-c(1,2,3,4,5,6)
data

## [1] 1 2 3 4 5 6

vstring<-c('a','b','c')
vstring

## [1] "a" "b" "c"

headings<-list(NULL, c("a","b","c"))
headings

## [[1]]
## NULL
## 
## [[2]]
## [1] "a" "b" "c"

m<-matrix(data, nrow=2, ncol=3, byrow=TRUE, dimnames=headings)
m

##      a b c
## [1,] 1 2 3
## [2,] 4 5 6

m2<-matrix(data, nrow=2, ncol=3, byrow=FALSE, dimnames=headings)
m2

##      a b c
## [1,] 1 3 5
## [2,] 2 4 6

m3<-matrix(data, nrow=3, ncol=3, byrow=TRUE, dimnames=headings )

## Warning in matrix(data, nrow = 3, ncol = 3, byrow = TRUE, dimnames = headings):
## data length differs from size of matrix: [6 != 3 x 3]

m3[1,]

## a b c 
## 1 2 3

m3[,2]

## [1] 2 5 2

m3[3,2]

## b 
## 2

a<- list(aa=1, bb=2, cc=3)
a

## $aa
## [1] 1
## 
## $bb
## [1] 2
## 
## $cc
## [1] 3

a$aa

## [1] 1

years <- c(1980, 1985, 1990)
scores <- c(34, 44,83)
df <- data.frame(years, scores)
df[,1]

## [1] 1980 1985 1990

df$years

## [1] 1980 1985 1990

df$score

## [1] 34 44 83

View(df)

a <- 66
if (a > 55) {print (" a is more than 55")}else { print("a is less than or equal 55")}

## [1] " a is more than 55"

mylist <-  c(55, 66, 77, 88, 99)
for (value in mylist){
  print(value)
}

## [1] 55
## [1] 66
## [1] 77
## [1] 88
## [1] 99

a < 100

## [1] TRUE

while (a <500){
  a <- a + 100
  print(a)
}

## [1] 166
## [1] 266
## [1] 366
## [1] 466
## [1] 566

a

## [1] 566

Including Plots

You can also embed plots, for example:

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.