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R Programming Homework Solution on Gehan Test

R Programming Homework Solution on Gehan Test

  • 17th Jun, 2022
  • 15:42 PM
m=list(18,'<10> n=list(30,44,23,'<16> i=0
if((length(m)<10>   print('111')
  while (i<2>       m1=sample(m,replace=FALSE)
      n1=sample(m,replace=FALSE)
      hi=c()
      n1=length(m)
      n2=length(n)
      N=n1+n2
      for (i in 1:N){if(i<11 hi[i]=0}else{hi[i]>       delta1=c()
      d1=c()
      e1=c()
      T=0
      count1=1
      for (i in 1:n1){
        if(typeof(m[[count1]])=="character"){
          delta1[i]=0
          count1=count1+1
          T=T+1
        }else{
          delta1[i]=1
          count1=count1+1
        }
      }
      count1=1
      for (i in (n1+1):N){
        if(typeof(n[[count1]])=="character"){
          delta1[i]=0
          count1=count1+1
          T=T+1
        }else{
          delta1[i]=1
          count1=count1+1
        }
      }
      
      for (i in 1:n1){
        if(typeof(m[[i]])=="character"){
          m[[i]]=as.double(substr(m[[i]],2,3))
          
        }
      }
      for (i in 1:n2){
        if(typeof(n[[i]])=="character"){
          n[[i]]=as.double(substr(n[[i]],2,3))
          
        }
      }
      combined_mn =list()
      for (j in 1:N){
        if(j<(n1+1)){
          combined_mn[[j]]=m[[j]]
        }
        else{
          combined_mn[[j]]=n[[j-n1]]
        }
      }
      
      combined_mn=c(combined_mn)
      li=order(unlist(combined_mn))
      i=1
      data2=c()
      h=c()
      delta=c()
      
      # Data  1st column in table, h second column
      for (i in 1:N){
        data2[[i]]=combined_mn[[li[i]]]
        h[i]=hi[li[i]]
        delta[i]=delta1[li[i]]
      }
      
      d1=c()
      e1=c()
      # d 4th column, e 5th column in table
      if(delta1[[1]]==1){
        d1[1]=1
        e1[1]=0
      } else{
        d1[1]=0
        e1[1]=1
      }
      i=1
      for (i in 2:N){
        if(delta[i]==1){d1[i]=d1[i-1]+1}else {d1[i]=d1[i-1]}
        
      } 
      for (i in 2:N){
        if(delta[i]==0){e1[i]=e1[i-1]+1}else {e1[i]=e1[i-1]}
        
      }
      
      R=c()
      
      # Ri 6th column
      
      for (i in 1:N){
        if(delta[i]==1){
          R[i] =  d1[i] +(T+e1[i])/2
        } else {
          R[i] = (T+1+d1[i])/2
        }
      }
      
      #aRi 7th column
      aRi=c()
      N=length(R)
      for (i in 1:N){
        aRi[i] = (2*R[i])-N-1
      } 
      data11=c()
      for(i in 1:N){
        data11[i] = data2[[i]]
      }
      table <- data.frame(
        Data=data11,
        hi = h, 
        deltai = delta, 
        di = d1,
        ei=e1,
        Ri=R,
        aRi=aRi,
        stringsAsFactors = FALSE
      )
      l1=length(m)
      l2=length(n)
      p= l1*l2
      s=0
      t=0
      for (i in 1:N){
        t=t+(h[i]*aRi[i])
        s=s+(aRi[i])^2}
      
      denom = sqrt((p*s)/(N*(N-1)))
      num = t
      G=num/denom
      print(G)
      i=i+1
  }
   }

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