Difference between revisions of "Central product classification"

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(some description of CPC added)
 
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[[Category:Life cycle assessment]]
 
[[Category:Life cycle assessment]]
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[[Category:Contains R code]]
 
{{variable|moderator=Jouni}}
 
{{variable|moderator=Jouni}}
  
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== Answer ==
 
== Answer ==
  
 +
{{attack|#|Something wrong with the first-level codes (there is a leading zero although should not be). This was corrected, but is there more problems with the data?|--[[User:Jouni|Jouni]] ([[User talk:Jouni|talk]]) 23:05, 27 December 2013 (EET)}}
  
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<rcode name="answer" label="Show classification levels 1-2" embed=1>
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library(OpasnetUtils)
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objects.latest("Op_en5914", code_name = "initiate")
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CPC <- EvalOutput(CPC)
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oprint(CPC@output[CPC@output$CPC.level < 3 , ])
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oprint(head(CPC@output))
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</rcode>
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 +
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<rcode name="subclasses" label="Show lower classification levels" embed=1 variables="
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name:class|description:Which class do you want to see in detail?|type:text|default:011
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">
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library(OpasnetUtils)
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objects.latest("Op_en5914", code_name = "initiate")
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CPC <- EvalOutput(CPC)
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oprint(CPC@output[regexpr(class, CPC@output$CPC.code) == 1 , ])
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</rcode>
  
 
== Rationale ==
 
== Rationale ==
  
UN CPC version 2 seems to be an optimal choice.  
+
UN CPC version 2 seems to be an optimal choice. It contains a hierarchical system for products, 4408 rows in total. It is organised in five hierarchical levels. It is based on ten categories at the top level, numbered from 0 to 9:
 
[http://unstats.un.org/unsd/cr/registry/cpc-2.asp]
 
[http://unstats.un.org/unsd/cr/registry/cpc-2.asp]
 
[http://unstats.un.org/unsd/cr/registry/regdntransfer.asp?f=130]
 
[http://unstats.un.org/unsd/cr/registry/regdntransfer.asp?f=130]
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* Agriculture, forestry and fishery products
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* Ores and minerals; electricity, gas and water
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* Food products, beverages and tobacco; textiles, apparel and leather products
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* Other transportable goods, except metal products, machinery and equipment
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* Metal products, machinery and equipment
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* Constructions and construction services
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* Distributive trade services; accommodation, food and beverage serving services; transport services; and electricity, gas and water distribution services
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* Financial and related services; real estate services; and rental and leasing services
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* Business and production services
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* Community, social and personal services
  
 
=== Dependencies ===
 
=== Dependencies ===
  
=== Formula ===
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===Calculations===
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<rcode name="initiate" label="Initiate variable" embed=1>
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library(OpasnetUtils)
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dat <- opbase.data("Op_en5914")
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dat$CPC.name <- dat$Result
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temp <- levels(dat$CPC.name)
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temp <- gsub("\r", "", temp)
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levels(dat$CPC.name) <- temp
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dat$Result <- 1
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temp2 <- as.character(levels(dat$CPC.code)[dat$CPC.code])
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temp2[c(318, 416, 1016, 1734)] <- c("1", "2", "3", "4")
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dat$CPC.code <- as.factor(temp2)
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dat$CPC.level <- nchar(temp2)
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CPC <- Ovariable("CPC", data = dat)
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objects.store(CPC)
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cat("Ovariable CPC created.\n")
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</rcode>
  
 
==See also==
 
==See also==

Latest revision as of 13:09, 13 March 2014



Question

What is a good classification system for products?

Answer

⇤--#: . Something wrong with the first-level codes (there is a leading zero although should not be). This was corrected, but is there more problems with the data? --Jouni (talk) 23:05, 27 December 2013 (EET) (type: truth; paradigms: science: attack)

+ Show code


Which class do you want to see in detail?:

+ Show code

Rationale

UN CPC version 2 seems to be an optimal choice. It contains a hierarchical system for products, 4408 rows in total. It is organised in five hierarchical levels. It is based on ten categories at the top level, numbered from 0 to 9: [1] [2]

  • Agriculture, forestry and fishery products
  • Ores and minerals; electricity, gas and water
  • Food products, beverages and tobacco; textiles, apparel and leather products
  • Other transportable goods, except metal products, machinery and equipment
  • Metal products, machinery and equipment
  • Constructions and construction services
  • Distributive trade services; accommodation, food and beverage serving services; transport services; and electricity, gas and water distribution services
  • Financial and related services; real estate services; and rental and leasing services
  • Business and production services
  • Community, social and personal services

Dependencies

Calculations

+ Show code

See also

Keywords

References


Related files

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