download_data

Where the file should be downloaded to.

destdir

Should only newer files be downloaded?

timestamping

Should files of the same type not be clobbered?

verbose

Should a progress bar be shown with cURL output?

progress

This function makes it easy to implement timestamping and no-clobber of files.

internal

Functions to automate downloading geospatial data available from
several federated data sources (mainly sources maintained by the US Federal
government). Currently, the package enables extraction from seven datasets:
The National Elevation Dataset digital elevation models (1 and 1/3 arc-second;
USGS); The National Hydrography Dataset (USGS); The Soil Survey Geographic
(SSURGO) database from the National Cooperative Soil Survey (NCSS), which is
led by the Natural Resources Conservation Service (NRCS) under the USDA; the
Global Historical Climatology Network (GHCN), coordinated by National Climatic
Data Center at NOAA; the Daymet gridded estimates of daily weather parameters
for North America, version 3, available from the Oak Ridge National Laboratory's
Distributed Active Archive Center (DAAC); the International Tree Ring Data Bank;
and the National Land Cover Database (NLCD).

R. Bocinsky

FedData

Functions to Automate Downloading Geospatial Data Available from
Several Federated Data Sources

Dylan Beaudette

Scott Chamberlain

download_data function

<dl><dt>url</dt>
<dd>The location of a file.</dd>
<dt>destdir</dt>
<dd>Where the file should be downloaded to.</dd>
<dt>timestamping</dt>
<dd>Should only newer files be downloaded?</dd>
<dt>nc</dt>
<dd>Should files of the same type not be clobbered?</dd>
<dt>verbose</dt>
<dd>Should cURL output be shown?</dd>
<dt>progress</dt>
<dd>Should a progress bar be shown with cURL output?</dd></dl>

Arguments

Use curl to download a file. — download_data

<dl>

<dt>url</dt>
<dd>The location of a file.</dd>


<dt>destdir</dt>
<dd>Where the file should be downloaded to.</dd>


<dt>timestamping</dt>
<dd>Should only newer files be downloaded?</dd>


<dt>nc</dt>
<dd>Should files of the same type not be clobbered?</dd>


<dt>verbose</dt>
<dd>Should cURL output be shown?</dd>


<dt>progress</dt>
<dd>Should a progress bar be shown with cURL output?</dd>

</dl>

download_data: Use curl to download a file.

Description

Usage

Value

Arguments

Details