data_saveA4_R Subroutine

subroutine data_saveA4_R(pname,Y1,order,wspace)
  integer                    :: Ny1,Ny2,Ny3,Ny4
  integer                    :: i1,i2,i3,i4
  character(len=*)           :: pname
  real(8),dimension(:,:,:,:) :: Y1
  character(len=*),optional  :: order
  logical,optional           :: wspace
  character(len=1)           :: order_
  logical                    :: wspace_
  order_ = "R"   ; if(present(order))order_=trim(order(1:1))
  wspace_= .true.; if(present(wspace))wspace_=wspace
  open(free_unit(unit),file=reg(pname))
  Ny1=size(Y1,1)
  Ny2=size(Y1,2)
  Ny3=size(Y1,3)
  Ny4=size(Y1,4)
  select case(order_)
  case default
     stop "save_array: order != Row-major, Col-major"
  case ("R")
     do i1=1,Ny1
        do i2=1,Ny2
           do i3=1,Ny3
              do i4=1,Ny4
                 write(unit,*)Y1(i1,i2,i3,i4)
              enddo
              if(wspace_)write(unit,*)
           enddo
        enddo
     enddo
  case ("C")
     do i4=1,Ny4
        do i3=1,Ny3
           do i2=1,Ny2
              do i1=1,Ny1
                 write(unit,*)Y1(i1,i2,i3,i4)
              enddo
              if(wspace_)write(unit,*)
           enddo
        enddo
     enddo
  end select
  close(unit)
  call file_gzip(reg(pname))
end subroutine data_saveA4_R