For loop array in R

Question

I am trying to use a 100-point-grid to solve a dynamic programming system, but my array is not changing with each iteration--what am I doing wrong?

Thanks!

k_cur<-2
iterations<-100
A<- 4
alpha<-0.3
beta<-0.98
karray<-c(log(A*k_cur^alpha-(alpha*beta*A*(k_cur)^(alpha))))
awesomefunction<-function(iterations){
    for(i in 1:iterations){
          k_prime<-(alpha*beta*A*(k_cur)^(alpha))
          v_cur<-(log(A*k_curr^alpha-k_prime))
          karray<-append(v_cur,karray)
          k_cur<-k_prime
                          }
    print(karray)
    plot(karray)
  }

Why do you think your array is not changing with each iteration? — MrFlick
– MrFlick, Commented May 19, 2014 at 23:23

ThatGuy · Accepted Answer · 2014-05-19 23:44:48Z

1

The only thing I can see is that k_cur is misspelled on line 11. The following ran for me:

k_cur<-2
iterations<-100
A<- 4
alpha<-0.3
beta<-0.98
karray<-c(log(A*k_cur^alpha-(alpha*beta*A*(k_cur)^(alpha))))
awesomefunction<-function(iterations){
    for(i in 1:iterations){
          k_prime<-(alpha*beta*A*(k_cur)^(alpha))
          v_cur<-(log(A*k_cur^alpha-k_prime))
          karray<-append(v_cur,karray)
          k_cur<-k_prime
                          }
    print(karray)
    plot(karray)
  }

awesomefunction(4)

and produced: output

Is that what you were after?

answered May 19, 2014 at 23:44

ThatGuy

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