How to define array with integer variables in first column and string variables in the second?
For example:
The array mELF ideally will have numbers in the first and third columns and strings in the third. I have it working only with integers but now I want to mix different types of variables. Is it possible?
INTEGER, save :: mELF(11000, 11000, 11000)
DATA mELF/11000*11000*11000*0/
No, it is not possible to mix the types of elements of an array in FORTRAN77, or any more recent edition of the language either. In an array all the elements must be of the same type (and kind).
In modern Fortran, ie 90 and later, you can define a derived type such as;
type my_type
integer :: col1, col3
character(len=16) :: col2
end type
and then declare an array such as
type(my_type), dimension(:), allocatable :: my_array
and now you have a data structure which you can slice with expressions such as
my_array % col2
my_array(1:12) % col1
my_array(2:6) % col2(5:8)
and so forth.
EQUIVALENCE.EQUIVALENCE let alone suggesting it !