Handle list in r

Handle list in r

• 1.
  Prof. Neeraj Bhargava PramodSingh Rathore Department of Computer Science School of Engineering & System Sciences, MDS University Ajmer, Rajasthan, India 1 Handle list, matrics,factors in R
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  Session Objectives  Howto handle List in R 2
• 3.
  Data types inR 3 Data types can be listed as • Vectors • Lists • Matrices • Data Frames • Factors
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  How to handlelist in R 4 a=c(2,3,4) output : 2 3 4 b=(“ab”,”bc”,”ef”) d=c(True,False) list(a,b,d) lst_1=list(abd) lst_1[[1]] lst_1[[1]] [1] Lst_1[[2]][3]=“xy” “ab” ”bc” ”xy”
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  How to handlematrices in R 5 matr=matrix(c(1,2,3,4,5,6),nrow=3,ncol=2,byrow=F) 1 4 matr 2 5 3 6 matr[,1] matr[1,] matr[1,1] matr=cbind(matr,c(3,5,7)) ?cbind matr=rbind(matr,c(3,5,7)) dimnames(matr)=list(c(”r1”,”r2”,”r3”,”r4”)c(“c1”,”c2”,”c3”,”c4”) t(matr)
• 6.
  How to handlefactors in R 6 y=factor(c(“first”,”second”,”first”,”first”,”third”)) 3level z-=y[1:4] Y[6]=“fourth” levels(y)=c(level(y),”fourth”) levels(y)
• 7.
  Assignment 1  Whatis data types in R?  Explain each data type with suitable example 7
• 8.
  Queries ???? 8
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