X_scaled = scale(X)
#Declare list for t2 mean mean area under ROC curve (mma) values
t2_mmas = []
# Create initial variables to update
max_t2_mma = 0
opt_t2_gamma = 0
print('\n### TIER 2 GRID SEARCH ###')
for gamma in t2_gamma_list:
amat_dict.update({gamma: []})
t2_auc_mat, t2_kpcas, t2_models = p2f.m_test5_2_rocplot(
X_scaled, y, gamma, dataset, filepath, 'tier2')
amat_dict[gamma].append(t2_auc_mat)
t2_mmas.append(np.mean(t2_auc_mat))
amat_dict_list.append(amat_dict)
# Select optimal t2 gamma
for i in range(len(t2_mmas)):
if t2_mmas[i] > max_t2_mma:
max_t2_mma = t2_mmas[i]
opt_t2_gamma = t2_gamma_list[i]
# Record optimal gamma for given dataset
opt_t2_gammas.append(opt_t2_gamma)
#Scale initial data to centre
toy_X_scaled = scale(toy_X)
#Declare list for t2 mean mean area under ROC curve (mma) values
t2_mmas = []
# Create initial variables to update
max_t2_mma = 0
opt_t2_gamma = 0
for gamma in t2_gamma_list:
amat_dict.update({gamma: []})
t2_auc_mat, t2_kpcas, t2_models = p2f.m_test5_2_rocplot(
toy_X_scaled, toy_y, gamma, toy_label, filepath, plotpath, 'tier1')
amat_dict[gamma].append(t2_auc_mat)
p2f.plot_mpl_heatmap(
t2_auc_mat,
t2_kpcas,
t2_models,
cmap="autumn",
cbarlabel=
"Mean area under ROC curve after 10-fold cross validation",
output='save',
path='%s%s_tier2_heatmap_gamma_%s.png' %
(filepath, nowtime, gamma))
p2f.js_heatmap(t2_auc_mat, t2_kpcas, t2_models,
plotpath = '%splotting/' % filepath
if not os.path.exists(filepath):
os.makedirs(filepath)
os.makedirs(plotpath)
X_rows, X_cols = X.shape
def_gamma = 1 / X_cols
gamma_list = [def_gamma / 100, def_gamma / 10, def_gamma]
for gamma in gamma_list:
auc_mat, kpcas, models = p2f.m_test5_2_rocplot(X, y, gamma, ds_label,
filepath, plotpath,
'gamma_%s' % gamma)
p2f.plot_mpl_heatmap(
auc_mat,
kpcas,
models,
cmap="autumn",
cbarlabel=
"Mean area under ROC curve after 10-fold cross validation",
output='save',
path='%s%s_tier2_heatmap_gamma_%s.png' %
(filepath, nowtime, gamma))
p2f.js_heatmap(auc_mat, kpcas, models, "hmapgamma%s" % (gamma),
"%s%sheatmap_gamma%s.js" % (plotpath, nowtime, gamma))
