Triangle Instantiation

[jbogaardt]

I expect this to instantiate, but it doesn't:

import chainladder as cl
import pandas as pd

cl.Triangle(
    data=pd.DataFrame({
        'Accident Date': ['2020-07-23', '2019-07-23', '2018-07-23', '2016-07-23', '2020-08-23', '2019-09-23', '2018-10-23'],
        'Valuation Date': ['2021-01-01', '2021-01-01', '2021-01-01', '2021-01-01', '2021-01-01', '2021-01-01', '2021-01-01'],
        'Loss': [10000, 10000, 10000, 10000, 0, 0, 0]}),
    origin='Accident Date', development='Valuation Date', columns='Loss'
)

[jbogaardt]

Another one that struggles to initialize.

import pandas as pd
import chainladder as cl
from pandas import Timestamp

df = pd.DataFrame({'Total Payroll': {0: 9560818.0, 1: 13929097.0, 2: 21532204.0, 3: 17983334.0},
 'Eval Date': {0: Timestamp('2021-09-16 00:00:00'),
  1: Timestamp('2021-09-16 00:00:00'),
  2: Timestamp('2021-09-16 00:00:00'),
  3: Timestamp('2021-09-16 00:00:00')},
 'Accident Date': {0: Timestamp('2018-10-21 12:00:00'),
  1: Timestamp('2019-10-22 00:00:00'),
  2: Timestamp('2020-10-21 12:00:00'),
  3: Timestamp('2021-08-27 00:00:00')}})
cl.Triangle(df, origin='Accident Date', development = 'Eval Date', columns='Total Payroll')