numpy - TypeError: only length-1 arrays can be converted to Python scalars issue -

i have following python script:

import math import numpy np  scores = [3.0, 1.0, 0.2] y = [0,0,0] = 0 j = 0 k = 0 sum = 0  def myfunc(x):     global sum     global     global j      if not y:         s in scores:             y[i] = 0.5 * scores[i] + 0.2             = i+1      if sum == 0:         s2 in scores:             sum = sum + math.exp(y[j])             j = j+1      print sum         return math.exp(x)/sum  s3 in scores:     print(myfunc(scores[k]))     k = k+1 

i have 2 issues here:

• i'm not getting expected output sum, makes total result wrong

• when run script, following output:

  traceback (most recent call last): file "myfunc.py", line 40, in <module> plt.plot(x, myfunc(scores).t, linewidth=2) file "myfunc.py", line 30, in myfunc return math.exp(x)/sum typeerror: length-1 arrays can converted python scalars 

omitting number values @ beginning, why getting error? how can solve it?

thanks.

looks want this:

import numpy np  def func(scores):     y = 0.5 * scores + 0.2     return scores / np.sum(np.exp(y))  scores = np.array([3.0, 1.0, 0.2])  res in func(scores):     print(res) 

output:

0.339460254992 0.113153418331 0.0226306836661 

now can plot it:

from matplotlib import pyplot plt plt.plot(func(scores).t, linewidth=2)