def surv_data_2_ref(surv_data):
# instantiate an empty reference
ref = Reference()
# add meta data to reference
# at present just a timestamp
from time import gmtime, strftime
ref.set_meta({'timestamp':strftime("%Y-%m-%d %H:%M:%S", gmtime())})
for channel_code in objectives_channel_codes:
# add reference objective corresponding to each model objective
if channel_code == 'prevalence':
#debug_p('surv_data ' + str(surv_data['prevalence']))
d_points = prevalence_surv_data_2_d_points(surv_data['prevalence'])
else:
msg = "Channel " + channel_code + " not implemeneted yet!\nSetting reference data to None."
warn_p(msg)
d_points = None
#debug_p('adding objective ' + channel_code)
#debug_p('num d_points ' + str(len(d_points)))
ref.add_objective(channel_code, d_points)
return ref
