prism_check

Helper function to check if files already exist in the prism download
directory. Determines if files have not been downloaded yet, i.e.,
returns <code>TRUE</code> if they do not exist.

Allows users to access the Oregon State Prism climate data
(<https://prism.nacse.org/>). Using the web service API data
can easily downloaded in bulk and loaded into R for spatial analysis.
Some user friendly visualizations are also provided.

Alan Butler

prism

Access Data from the Oregon State Prism Climate Project

Hart Edmund

Kendon Bell

prism_check function

<dl><dt>prismfiles</dt>
<dd>a list of full prism file names ending in ".zip".</dd>
<dt>lgl</dt>
<dd><code>TRUE</code> returns a logical vector indicating those
not yet downloaded; <code>FALSE</code> returns the file names that are not yet
downloaded.</dd>
<dt>pre81_months</dt>
<dd>Numeric vector of months that will be downloaded, if
downloading data before 1981. This is so that the existence of the data can
be correctly checked, as the file includes all monthly data for a given
year.</dd></dl>

Arguments

Check if prism files exist — prism_check

<dl>

<dt>prismfiles</dt>
<dd>a list of full prism file names ending in ".zip".</dd>


<dt>lgl</dt>
<dd><code>TRUE</code> returns a logical vector indicating those
not yet downloaded; <code>FALSE</code> returns the file names that are not yet
downloaded.</dd>


<dt>pre81_months</dt>
<dd>Numeric vector of months that will be downloaded, if
downloading data before 1981. This is so that the existence of the data can
be correctly checked, as the file includes all monthly data for a given
year.</dd>

</dl>

prism_check: Check if prism files exist

Description

Usage

Value

Arguments