ITNr (version 0.6.0)

Comtradrclean: Comtradr data clean

Description

This function takes (import) trade data downloaded from comtrade - potentially using the comtradr package, cleans it and transforms it into a network. Adding a number of country level attributes to nodes in the network, including: regional partition, GDP, GDP per capita, GDP growth and FDI. However, it is important to note the limits of using comtradr to construct a network. Firstly when downloading the data with comtradr, you must specify reporters and partners – yet you cannot put “all” for both – only for either reporters or partners. Then for the other you are limited to a character vector of country names, length five or fewer. Therefore, this will not give you a full network. However, this function can be applied to trade data downloaded from UN Comtrade (download csv and read into R as a dataframe), or any other trade data which is in the same format as the comtradr dataframe.

Usage

Comtradrclean(DF, YEAR, threshold, cutoff)

Value

International Trade Network - igraph object

Arguments

DF

Dataframe of trade data downloaded (potentially using the comtradr package)

YEAR

Year

threshold

Apply a threshold - TRUE, Extract the backbone - FALSE

cutoff

Threshold - cutoff level, Backbone - significance level

Examples

# \donttest{
##download data using comtradr
#require(comtradr)

##Download the trade data for tomatoes - code 0702
##All countries, Year - 2016
#ex_2 <- ct_search(reporters = "All",
#               partners = c("USA","China",
#               "Germany","Canada","Mexico"),
#               trade_direction = "imports",
#               start_date = "2016-01-01",
#               end_date = "2016-12-31",
#               commod_codes = "0702")

##this then gives a data frame which
##we can clean using the following function:
tomatoesITN<-Comtradrclean(ex_2,2016,TRUE,0.01)

##We apply a threshold - only retaining ties that are at least 0.01%
##of total tomatoes trade (amngst these countries)

# }