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c real A(100000), y(1000), hit(100000)
c integer pcx, pcy
c call rdata('..\GAMAFON.DAT',A,N)
c call hgram(A, N, 1000., y, hit, m)
c p = A(26)
c write (*,*) AMIN(A,N), AMAX(A,N)
c
c do i=1,m
c write (*,*) y(i), hit(i)
c end do
c
c write (*,*) pcx(100,700,2000.,8000.,5000.)
c
c end
integer function pcx(pxb, pxe, xmin, xmax, xcurr)
integer pxb, pxe
real xmin, xmax, xcurr
pcx=nint((pxe-pxb)/(xmax-xmin)*(xcurr-xmin)+pxb)
end
integer function pcy(pyb, pye, ymin, ymax,ycurr)
integer pyb, pye
real ymin, ymax, ycurr
pcx=nint((pyb-pye)/(ymax-ymin)*(ycurr-ymin)+pye)
end
function AVR(A,N)
REAL A(*)
sum=0
do i=1, N
sum= sum + A(i)
end do
AVR = sum/N
end function
function STD(A,N)
REAL A(*)
sum = 0
do i=1, N
sum= (A(i) - AVR(A,N))**2
end do
STD = sqrt(sum/(N-1))
end function
function AMIN(A,N)
REAL A(*)
AMIN=A(1)
do i=1, N
IF (AMIN>A(i))then
AMIN = A(i)
end if
end do
end function
function AMAX(A,N)
REAL A(*)
AMAX=A(1)
do i=1, N
IF (AMAX<A(i))then
AMAX = A(i)
end if
end do
end function
subroutine hgram(A, N, step, y, hit, m)
real A(*), y(*), hit(*)
x1=AMIN(A,N) - mod(AMIN(A,N), step)
x2=AMAX(A,N) - mod(AMAX(A,N), step)
m= nint((x2-x1)/step+1)
do i=1,m
y(i)= x1+step*(i-1)
hit(i)=0
end do
do i =1, h 0
do j = 1,m-1
if (A(i)>=y(j).AND. A(i)<y(j+1)) hit(j)=hit(j)+1
end do
end do
end
subroutine smooth(a,n,np,s)
real a(*), s(*)
integer np,n
do i=1, n
s(i) = a(i)
end do
do i = 1+np, n-np
sum=0
do k=i-np, i+np
sum= sum+a(k)
end do
s(i)= sum/1+2*np
end do
end
real function distance (a,s,n)
real a(*), s(*)
integer n
sum=0
do i=1, n
sum =sum+(a(i)-s(i))**2
end do
distance = sqrt(sum/n)
end function
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