In paul4forest/tradeflows: Process forest products trade flow data from COMTRADE and COMEXT

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devtools::build_vignettes()
# Then rebuild the package CTRL+SHIFT+B so that the vignette is 
# integrated to the package documentation

library(tradeflows)
library(dplyr)
library(ggplot2)

The package ggplot2 is used for visualisation examples below.

Load data

The documentation of each function is available by entering ?function_name at the R prompt.

swd99 <- tradeflows::sawnwoodexample %>%
    filterworldeu28() %>%
    addregion() %>%
    addconversionfactorandprice()

# Alternative way to load the dataset 
# when access to a database is available
# in the code above, replace
# 'tradeflows::sawnwoodexample' 
# by
# 'readdbproduct(440799, "raw_flow_yearly")'

Price distribution

Distribution of unit prices along the tradevalue

Lines represent large quantities which are at the same prices.

p <- ggplot(filter(swd99, price!=Inf),
            aes(x = tradevalue, y = price)) +
    geom_point(alpha = 1/5) +
    scale_x_log10(limits=c(1000, NA)) + 
    xlab("Trade value $ (log scale)") +
    coord_cartesian(ylim =c(0,2000)) +
    ylab(expression("Price $/m"^"3")) + 
    ggtitle("Variation of prices along the tradevalue")
p 
p + facet_wrap(~flow) +
    aes(color=as.factor(flag))

paul4forest/tradeflows documentation built on Oct. 8, 2019, 10:35 a.m.