Sanhita Mallick wrote:
Hi.
I am struggling with a simple recurring function, but
can't understand why this is happening. Please help.
Here is the script. T(i) are trees (as in graphs).
The program operates great, until the step where
norm_ted is calculated. Mysteriously norm_ted becomes
0, even though "mag" value is calculated correctly.
Also, strangely, sum_norm_ted also becomes zero.
What am I missing?
Well for one thing, some code. What are F1, F2 and F3? What is alg?
Also your code got mangled by something in the email process leaving a
lot of folded lines.
Your code would be a lot easier to red if you use % formatting (e.g.):
print 'TED %s %s is %s' % str(i, j, ted)
or just print 'TED', i, j, 'is', ted
I took the liberty of applying this to your code and reducing the indent
size in hopes of it coming across easier to read.
Also note the the 3 statements following the for i loop do nothing
useful, so I removed them.\
And what is the use of mean_ted? It is created but never referenced.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
T = [F1, F2, F3]
k = len(T)
mean_ted = {}
for i in range(k):
for j in range(k):
if (i != j):
ted = alg.ted(T[i], T[j])
print 'TED %s %s is %s' % (i, j, ted)
mag = 2 * (T[i].n + T[j].n) - 1
print 'MAG %s %s is %s and %s' % (i, j, mag, 2 * ted)
norm_ted = (2 * ted) / mag
print 'norm_ted %s %s is %s and %s' % (i, j, norm_ted)
sum_norm_ted = sum_norm_ted + norm_ted
print 'sum_norm_ted %s %s is %s' % (i, j, sum_norm_ted)
--
Bob Gailer
919-636-4239 Chapel Hill, NC
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