有没有办法在不使用显式do循环的情况下初始化随机数组?
现在我的随机矩阵初始化看起来像
program Main
implicit none
save
integer :: seed, i, j
real :: x
character(100) :: option
real, dimension(10,10) :: matrix
if (iargc() > 0) then
CALL GETARG(1,option)
read(option,*) seed
else
seed = 1
end if
call RANDOM_SEED(seed)
do i=1,10
do j=1,10
call RANDOM_NUMBER(x)
matrix(i,j) = x
end do
end do
end program
但是如果可能的话,我希望它更像是隐含的do-loop数组初始化:
program Main
implicit none
save
integer :: seed
character(100) :: option
real, dimension(10,10) :: matrix
if (iargc() > 0) then
CALL GETARG(1,option)
read(option,*) seed
else
seed = 5
end if
call RANDOM_SEED(seed)
matrix = reshape((/ ((call RANDOM_NUMBER()), i=1,100) /), shape(matrix))
end program
使用Fortran 95有什么办法可以做到这一点吗?
答案 0 :(得分:14)
为什么不
call RANDOM_NUMBER(matrix)
?