Demo code for usage of Tags and new parameter framework in Shogun

sg_swig_example.py

import modshogun as sg

ck = sg.CombinedKernel()
ck.setInt("num_kernels", 3)
gk = sg.GaussianKernel(10, 5)
gk_tag  = sg.TagKernel("gaussian")
print gk == ck.set(gk_tag, gk) # returns gk

if gk == ck.getKernel("gaussian") and gk == ck.get(gk_tag):
  print "Fetched gaussian kernel with width = 5"

print ck.has("blah")
print ck.has(gk_tag)
print ck.has("gaussian")
print ck.hasKernel("gaussian")
print ck.hasFeatures("gaussian")

another_gk = sg.GaussianKernel(10, 2)
if gk == ck.setKernel("gaussian", another_gk):
  # Returns current object when updated with same name
  print "New kernel succesfully updated with width = 2."

lk = sg.LinearKernel()
pk = sg.PolyKernel(10,3)
ck.setKernel("linear", lk)
ck.setKernel("poly", pk)

print "CombinedKernel object has following parameters:"
for param in ck.all_parameters():
  print param