README.md

In mkao006/sws_flag: Package to manipulate and aggregate observational status

FAOSWS Flag package

This is an add-on to the faosws package to support the manipulation and the aggregation of flags.

Installation

The package can be installed by running the following command.

library(devtools)
install_github(repo = "sws_r_api", username = "mkao006", 
               subdir = "faoswsFlag/faoswsFlag")

Aggregation

The aggregation of observational flags depends on the reliability of the original sources.

The following table shows the current observational flags and information weights.

flagObservationStatus|flagObservationWeight|description ---------------------|---------------------|----------- \<blank> |1|Official figure T|0.8|Unofficial figure E|0.75|Estimate I|0.5|Imputed M|0|Missing -------------------------------------------------------

The aggregation is done by taking the lowest weight to reflect the reliability of the source.

Example

Computing Yield

Lets take the scenario of yield computation for example. If the source of production was official ( ), while the area harvested was collected from unofficial sources (T); then the observation status flag of yield which is calculated by division of production by area harvested will be (T).

mkao006/sws_flag documentation built on May 23, 2019, 1:05 a.m.