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  拉格朗日插值和牛顿插值matlab算法，对Excel中的数据进行异常值处理，然后插值拟合，得到较好的结果。(Lagrange interpolation matlab algorithm)

ch4\code\abnormal_rules_1.m
ch4\code\cust_subplot.m
ch4\code\data_discretization.m
ch4\code\data_normalization.m
ch4\code\de_abnormal.m
ch4\code\find_type.m
ch4\code\lagrange_interp.m
ch4\code\lagrange_newton_interp.m
ch4\code\line_rate_construct.m
ch4\code\newton_interp.m
ch4\code\ployinterp_column.m
ch4\code\principal_component_analyze.m
ch4\code\wave_analyze.m
ch4\data\catering_sale.xls
ch4\data\catering_sale_all.xls
ch4\data\discretization_data.xls
ch4\data\electricity_data.xls
ch4\data\normalization_data.xls
ch4\data\principal_component.xls
ch4\tmp\dimention_reducted.xls
ch4\tmp\sales.xls
ch4\code
ch4\data
ch4\tmp
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