data from first line to two column

I have data.txt. There is lot of numbers, in this format (1.4282E-01, 5.0537E+00, 1.2573E-01, 5.0537E+00, 1.8311E-02, 5.0513E+00,...n) all is in one line.

I need transform:

1.4282E-01, 5.0537E+00,

1.2573E-01, 5.0537E+00,

1.8311E-02, 5.0513E+00,

.

.

.

n

I write this code, but calculate is very long and not end.

data.txt

A=data;

n=643968;

index_i=1:2:n;

index_j=1:1:n/2;

for i=index_i;

j=index_j;

B(j,1)=A(1,i);

end

??? I need A(1,1)=B(1,1); A(1,3)=B(1,2); A(1,5)=B(1,3);

please help me

Answer 1

[Stephan]

A=[1.4282E-01, 5.0537E+00, 1.2573E-01, 5.0537E+00, 1.8311E-02, 5.0513E+00];
B=reshape(A,2,[])'