Sample Dataset

The chainladder package ships with a number of sample datasets that are used throughout the documentation and examples. Load any of them with cl.load_sample(...), for example cl.load_sample("abc").

The table below lists every available dataset alongside its basic attributes. It is produced live by cl.list_samples(), which reads from the sample-dataset manifest (chainladder/utils/data/_manifest.py), so it never drifts out of sync with the datasets that actually ship.

import chainladder as cl

cl.list_samples()

/home/docs/checkouts/readthedocs.org/user_builds/chainladder-python/envs/experimental/lib/python3.11/site-packages/chainladder/core/base.py:403: UserWarning: Could not infer format, so each element will be parsed individually, falling back to `dateutil`. To ensure parsing is consistent and as-expected, please specify a format.
  datetime_mapping = dict(zip(datetime_arg, pd.to_datetime(**date_inference)))

	index	columns	cumulative	origin_grain	development_grain	origin_periods	development_periods
name
abc	None	[values]	True	Annual	Annual	11	11
auto	[lob]	[incurred, paid]	True	Annual	Annual	10	10
berqsherm	[LOB]	[Incurred, Paid, Reported, Closed]	True	Annual	Annual	8	8
cc_sample	None	[loss, exposure]	True	Annual	Annual	5	5
clrd	[GRNAME, LOB]	[IncurLoss, CumPaidLoss, BulkLoss, EarnedPremD...	True	Annual	Annual	10	10
clrd2025	[GRNAME, LOB]	[IncurredLosses, CumPaidLoss, BulkLoss, Earned...	True	Annual	Annual	19	19
friedland_auto_bi_insurer	None	[Paid Claims, Reported Claims, Earned Premium]	True	Annual	Annual	9	9
friedland_auto_freq_sev	None	[Closed Claim Counts, Reported Claim Counts, R...	True	Semiannual	Semiannual	10	10
friedland_auto_salsub	None	[Reported Salvage and Subrogation, Received Sa...	True	Annual	Annual	11	11
friedland_autoprop	None	[Reported ALAE, Paid ALAE, Reported Claims, Pa...	True	Annual	Annual	11	11
friedland_berq_sher_auto	None	[Paid Claims, Closed Claim Counts, Reported Cl...	True	Annual	Annual	8	8
friedland_gl_insurer	None	[Closed Claim Counts, Reported Claim Counts, D...	True	Annual	Annual	8	8
friedland_med_mal	None	[Reported Claims, Paid Claims, Case Outstandin...	True	Annual	Annual	8	8
friedland_qs	None	[Gross Reported Claims, Net Reported Claims, N...	True	Annual	Annual	4	4
friedland_us_auto_chg_prod_mix	None	[Paid Claims, Reported Claims]	True	Annual	Annual	10	10
friedland_us_auto_incr_claim	None	[Paid Claims, Reported Claims]	True	Annual	Annual	10	10
friedland_us_auto_steady_state	None	[Paid Claims, Reported Claims]	True	Annual	Annual	10	10
friedland_us_industry_auto	None	[Paid Claims, Reported Claims, Earned Premium]	True	Annual	Annual	10	10
friedland_us_industry_auto_case	None	[Case Outstanding, Paid Claims]	True	Annual	Annual	10	10
friedland_uspp_auto_increasing_case	None	[Reported Claims, Paid Claims, Earned Premium]	True	Annual	Annual	10	10
friedland_uspp_auto_increasing_claim	None	[Reported Claims, Paid Claims, Earned Premium]	True	Annual	Annual	10	10
friedland_uspp_auto_steady_state	None	[Reported Claims, Paid Claims, Earned Premium]	True	Annual	Annual	10	10
friedland_uspp_increasing_claim_case	None	[Reported Claims, Paid Claims, Earned Premium]	True	Annual	Annual	10	10
friedland_wc_self_insurer	None	[Closed Claim Counts, Reported Claim Counts, P...	True	Annual	Annual	8	8
friedland_xol	None	[Gross Reported Claims, Net Reported Claims, C...	True	Annual	Annual	4	4
friedland_xyz_auto_bi	None	[Paid Claims, Reported Claims]	True	Annual	Annual	11	11
friedland_xyz_case	None	[Case Outstanding, Paid Claims]	True	Annual	Annual	11	11
friedland_xyz_disp	None	[Disposal Rate, Closed Claim Counts, Paid Claims]	True	Annual	Annual	8	8
friedland_xyz_freq_sev	None	[Closed Claim Counts, Reported Claim Counts, R...	True	Annual	Annual	11	11
genins	None	[values]	True	Annual	Annual	10	10
ia_sample	None	[loss, exposure]	True	Annual	Annual	6	6
liab	[lob]	[values]	True	Annual	Annual	14	14
m3ir5	None	[values]	True	Annual	Annual	14	14
mack_1997	None	[Case Incurred]	True	Annual	Annual	10	10
mcl	None	[incurred, paid]	True	Annual	Annual	7	7
mortgage	None	[values]	True	Annual	Annual	9	9
mw2008	None	[values]	True	Annual	Annual	9	9
mw2014	None	[values]	True	Annual	Annual	17	17
prism	[ClaimNo, Line, Type, ClaimLiability, Limit, D...	[reportedCount, closedPaidCount, Paid, Incurred]	False	Month	Month	120	120
quarterly	None	[incurred, paid]	True	Annual	Quarter	12	45
raa	None	[values]	True	Annual	Annual	10	10
tail_sample	None	[incurred, paid]	True	Annual	Annual	10	10
ukmotor	None	[values]	True	Annual	Annual	7	7
usaa	None	[incurred, paid]	True	Annual	Annual	10	10
usauto	None	[incurred, paid]	True	Annual	Annual	10	10
xyz	None	[Incurred, Paid, Reported, Closed, Premium]	True	Annual	Annual	11	11