README.md
In lwbgt: Reference-Compatible Outdoor Wet Bulb Globe Temperature

lwbgt

lwbgt provides dependency-free, vectorized R access to the reference-compatible Liljegren outdoor wet bulb globe temperature kernel. Input names and units match the native and Python APIs.

Install the latest release from R-universe:

install.packages("lwbgt", repos = "https://zyf0717.r-universe.dev")

Or install the latest GitHub release directly from this repository's r/ subdirectory:

install.packages("remotes", repos = "https://cloud.r-project.org")
remotes::install_github("zyf0717/lwbgt/r@*release")

input <- lwbgt_input(
    year = 2024, month = 4, day = 15, hour = 14, minute = 30,
    gmt_offset_hours = 8, averaging_minutes = 60, urban = 1,
    latitude_deg_north = 1.3521, longitude_deg_east = 103.8198,
    solar_w_m2 = 742, pressure_hpa = 1008.4,
    air_temperature_c = 32.1, relative_humidity_percent = 68,
    wind_speed_m_s = 2.8, wind_height_m = 10,
    vertical_temperature_difference_c = -0.4
)
calculate(input)
esat(273.15)

Rows with missing, invalid, or non-convergent inputs return a nonzero status and NA numerical outputs without preventing other rows from being calculated.

The package contains a modified Liljegren WBGT v1.1 derivative. See the installed LICENSE, LICENSES/, and NOTICE files for redistribution terms and required acknowledgements. It is not affiliated with or endorsed by the original authors, UChicago Argonne, or the U.S. Department of Energy.