Explicit Loop in R

R provides three ways to write loops:

1.     For
2.     Repeat
3.     While

##For Loops

demodata<- LETTERS[1:6]

 for(item in demodata)

{

    print(item);

 }

##Repeat

rep(1:3,length.out=7)

 repeat

 {

          g <- rnorm(1)

          if (g > 1.0) break

          cat(g,"\n")

 }

##While

while (g < 1)

{

          g <- rnorm(1)

          cat(g,"\n")

}

Loop Control Statement

·         Break

·         Next

#Break

demodata<- LETTERS[1:6]

 for(item in demodata)

{

 if(item=="D")

 {

 break;

 }

 print(item);

 }

 #Next

 demodata<- LETTERS[1:6]

 for(item in demodata)

{

 if(item=="D")

 {

 next;

 }

 print(item);

 }