yujie-w / r-griddingmachine

A R wrapper for GriddingMachine.jl

GriddingMachine for R

The package is a simplification of GriddingMachine.jl, where a full suite of functions are available.

Installation and Uninstallation

To install griddingmachine, do

library(devtools);
install_github("Yujie-W/r-griddingmachine");

To uninstall griddingmachine, do

remove.packages("griddingmachine");

API

Before using griddingmachine, users need to load the library

library("griddingmachine");

update_GM

Update the GriddingMachine.jl artifact library.

update_GM();

query_collection

Query the dataset path; if the dataset does not exist, the dataset will be downloaded and unzipped automatically.

file_path = query_collection('VCMAX_2X_1Y_V1');

The dataset is a NetCDF file with data labeled as data and error labeled as std.

request_LUT

Request the data for a given latitude and longitude from the server without downloading the datasets.

results = request_LUT('VCMAX_2X_1Y_V1', 35.1, 115.2);

Note that the function also allows for other input variables, including cyc, user, interpolation, server, and port. E.g., if interpolation is true, the dataset would be interpolated.

results = request_LUT('VCMAX_2X_1Y_V1', 35.1, 115.2, interpolation = TRUE);