# [R] "ciclo for" in matrix construction ( matlab -> R )

From: massimodisasha <massimodisasha_at_yahoo.it>
Date: Wed 04 Oct 2006 - 15:06:54 GMT

hi,
i'm new to R
i have a little script in matlab....
now i'm porting it to R but i've some problem. how can i write in R language this
matlab/octave code:

```LX = L ;                     >>> L is a matrix
```
ss = size(LX,1);
E_N_2 = zeros(ss,2);

for i = 1:ss
E_2 = E_0 + LX(i,1)*C(3)+LX(i,2)*C(4); >>>> E_0 , C(3), c(4) are costant
N_2 = N_0 + LX(i,2)*C(3)-LX(i,1)*C(4);
r=[ E_2,N_2];
E_N_2(i,:)=r;
end
E_N_2

i'm try so :

library(matlab)

```LX <- L
ss <- dim(LX)
ss <- ss
```

E_N_2 <- zeros(ss,2)
for(i in 1:ss)
.....
.....?

thanks for any help :-)
Massimo

my mayor problem is to know how the "cicle for" works

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