保险损失准备金
基于 chainladder-python 的保险损失准备金精算工具：从历史理赔三角到 IBNR 准备金、尾部参数拟合，支持 3 大险种（再保险 / 巨灾 / 一般责任）。
晶体简介
Constraints
Evidence Quality
Medium confidence — review before critical use
76 条不可违反的约束
WHENWhen specifying columns for Triangle construction
ACTIONVerify each column values are numeric type, as non-numeric columns raise TypeError during construction
CONSEQUENCENon-numeric column data causes TypeError with message 'column attribute must be numeric', preventing Triangle instantiation and blocking downstream analysis
WHENWhen constructing a Triangle from DataFrame
ACTIONPass columns with unique names, as duplicate column names raise AttributeError
CONSEQUENCEDuplicate column names cause AttributeError 'Columns are required to have unique names', breaking Triangle construction before any downstream processing
WHENWhen accessing Triangle.shape property
ACTIONReturn a 4-tuple representing (index_size, columns_size, origin_size, development_size) in that order
CONSEQUENCEDownstream stages expect 4D array shape for vectorized operations; violating this causes incorrect dimension alignment in link_ratio_analysis and development_estimation stages
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更新历史
v0.1.0: 首次发布。基于 casact/chainladder-python 的保险损失准备金工具，中英双语 + 3 条 FAQ。