{ "_id": "6a1d18141d7bb097a0a37684", "Package": "piar", "Title": "Price Index Aggregation", "Version": "0.9.0.9002", "Authors@R": "c(\nperson(\"Steve\", \"Martin\", role = c(\"aut\", \"cre\", \"cph\"),\nemail = \"marberts@protonmail.com\",\ncomment = c(ORCID = \"0000-0003-2544-9480\"))\n)", "Description": "Most price indexes are made with a two-step procedure,\nwhere period-over-period elementary indexes are first\ncalculated for a collection of elementary aggregates at each\npoint in time, and then aggregated according to a price index\naggregation structure. These indexes can then be chained\ntogether to form a time series that gives the evolution of\nprices with respect to a fixed base period. This package\ncontains a collection of functions that revolve around this\nwork flow, making it easy to build standard price indexes, and\nimplement the methods described by Balk (2008,\n), von der Lippe (2007,\n), and the CPI manual (2020,\n) for bilateral price indexes.", "License": "MIT + file LICENSE", "Encoding": "UTF-8", "URL": "https://marberts.github.io/piar/, https://github.com/marberts/piar", "BugReports": "https://github.com/marberts/piar/issues", "LazyData": "true", "VignetteBuilder": "knitr", "Config/testthat/edition": "3", "Roxygen": "list(markdown = TRUE)", "Config/roxygen2/version": "8.0.0", "Repository": "https://marberts.r-universe.dev", "Date/Publication": "2026-06-01 01:06:08 UTC", "RemoteUrl": "https://github.com/marberts/piar", "RemoteRef": "HEAD", "RemoteSha": "69acb6782c01a5dd0b134b5d3222c18069e9cdea", "NeedsCompilation": "no", "Packaged": { "Date": "2026-06-01 05:23:24 UTC", "User": "root" }, "Author": "Steve Martin [aut, cre, cph] (ORCID:\n)", "Maintainer": 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"object": "ms_prices", "class": [ "data.frame" ], "fields": [ "period", "business", "product", "price" ], "rows": 40, "table": true, "tojson": true }, { "name": "ms_weights", "title": "Price data", "object": "ms_weights", "class": [ "data.frame" ], "fields": [ "business", "classification", "weight" ], "rows": 5, "table": true, "tojson": true } ], "_help": [ { "page": "sub-.piar_index", "title": "Extract index values", "concept": [ "index methods" ], "topics": [ "[.piar_index", "[<-.piar_index" ] }, { "page": "aggregate.piar_index", "title": "Aggregate elementary price indexes", "concept": [ "index methods" ], "topics": [ "aggregate.chainable_piar_index", "aggregate.direct_piar_index", "aggregate.piar_index" ] }, { "page": "aggregation_structure", "title": "Make a price index aggregation structure", "topics": [ "aggregation_structure", "piar_aggregation_structure" ] }, { "page": "as_aggregation_structure", "title": "Coerce to an aggregation structure", "topics": [ "as_aggregation_structure", "as_aggregation_structure.data.frame", "as_aggregation_structure.default", "as_aggregation_structure.matrix" ] }, { "page": "as_index", "title": "Coerce to a price index", "topics": [ "as_index", "as_index.chainable_piar_index", "as_index.data.frame", "as_index.default", "as_index.direct_piar_index", "as_index.matrix", "as_index.mts" ] }, { "page": "as.data.frame.piar_index", "title": "Coerce an index into a tabular form", "concept": [ "index methods" ], "topics": [ "as.data.frame.piar_index", "as.matrix.piar_index" ] }, { "page": "as.matrix.piar_aggregation_structure", "title": "Coerce an aggregation structure into a tabular form", "concept": [ "aggregation structure methods" ], "topics": [ "as.data.frame.piar_aggregation_structure", "as.matrix.piar_aggregation_structure" ] }, { "page": "as.ts.piar_index", "title": "Coerce an index into a time series", "concept": [ "index methods" ], "topics": [ "as.ts.piar_index" ] }, { "page": "chain", "title": "Chain and rebase a price index", "concept": [ "index methods" ], "topics": [ "chain", "chain.chainable_piar_index", "chain.default", "rebase", "rebase.default", "rebase.direct_piar_index", "unchain", "unchain.default", "unchain.direct_piar_index" ] }, { "page": "combine_classifications", "title": "Combine hierarchical classifications", "topics": [ "combine_classifications" ] }, { "page": "contrib", "title": "Extract percent-change contributions", "concept": [ "index methods" ], "topics": [ "contrib", "contrib2DF", "contrib<-", "set_contrib", "set_contrib_from_index" ] }, { "page": "cut.piar_aggregation_structure", "title": "Cut an aggregation structure", "concept": [ "aggregation structure methods" ], "topics": [ "cut.piar_aggregation_structure" ] }, { "page": "elementary_index", "title": "Make elementary/elemental price indexes", "topics": [ "elemental_index", "elementary_index", "elementary_index.data.frame", "elementary_index.default", "elementary_index.numeric" ] }, { "page": "expand_classification", "title": "Expand a hierarchical classification", "topics": [ "expand_classification", "interact_classifications" ] }, { "page": "head.piar_index", "title": "Return the first/last parts of an index", "concept": [ "index methods" ], "topics": [ "head.piar_index", "tail.piar_index" ] }, { "page": "impute_prices", "title": "Impute missing prices", "topics": [ "carry_backward", "carry_forward", "impute_prices", "impute_prices.data.frame", "impute_prices.default", "impute_prices.matrix", "impute_prices.numeric", "shadow_price" ] }, { "page": "is_aggregation_structure", "title": "Test if an object is an aggregation structure", "topics": [ "is_aggregation_structure" ] }, { "page": "is_index", "title": "Test if an object is a price index", "topics": [ "is_chainable_index", "is_direct_index", "is_index" ] }, { "page": "is.na.piar_index", "title": "Missing values in a price index", "concept": [ "index methods" ], "topics": [ "anyNA.piar_index", "is.na.piar_index" ] }, { "page": "levels.piar_aggregation_structure", "title": "Get the levels for an aggregation structure", "concept": [ "aggregation structure methods" ], "topics": [ "levels.piar_aggregation_structure" ] }, { "page": "levels.piar_index", "title": "Get the levels for a price index", "concept": [ "index methods" ], "topics": [ "levels.piar_index", "levels<-.piar_index", "set_levels" ] }, { "page": "mean.piar_index", "title": "Aggregate a price index over subperiods", "concept": [ "index methods" ], "topics": [ "mean.chainable_piar_index", "mean.direct_piar_index", "mean.piar_index" ] }, { "page": "merge.piar_index", "title": "Merge price indexes", "concept": [ "index methods" ], "topics": [ "merge.chainable_piar_index", "merge.direct_piar_index", "merge.piar_index" ] }, { "page": "piar_index", "title": "Price index objects", "topics": [ "chainable_piar_index", "direct_piar_index", "piar_index" ] }, { "page": "price_data", "title": "Price data", "topics": [ "fs_prices", "fs_weights", "ms_prices", "ms_weights", "price_data" ] }, { "page": "price_relative", "title": "Calculate period-over-period price relatives", "topics": [ "price_relative", "price_relative.data.frame", "price_relative.default" ] }, { "page": "split_classification", "title": "Split a hierarchical classification", "topics": [ "split_classification" ] }, { "page": "split.piar_index", "title": "Split an index into groups", "concept": [ "index methods" ], "topics": [ "split.piar_index", "split<-.piar_index" ] }, { "page": "stack.piar_index", "title": "Stack price indexes", "concept": [ "index methods" ], "topics": [ "stack.chainable_piar_index", "stack.direct_piar_index", "stack.piar_index", "unstack.chainable_piar_index", "unstack.direct_piar_index" ] }, { "page": "time.piar_index", "title": "Get the time periods for a price index", "concept": [ "index methods" ], "topics": [ "end.piar_index", "ntime", "set_time", "start.piar_index", "time.piar_index", "time<-", "time<-.piar_index" ] }, { "page": 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