read_ASTER_txt

file

a <code>POSIXct</code> object to use to set the <code>"when.measured"</code>
attribute. If <code>NULL</code>, the default, the date is extracted from the
file header.

date

A data frame with columns <code>lon</code> and <code>lat</code> used to
set attribute <code>"where.measured"</code>.

geocode

character string, but if <code>NULL</code> the value of <code>file</code> is
used, and if <code>NA</code> the "what.measured" attribute is not set.

label

The locale controls defaults that vary from place to place. The
default locale is US-centric (like R), but you can use
<code><a rd-options="readr" href="/link/locale?package=photobiologyInOut&version=0.4.19&to=readr" data-mini-rdoc="readr::locale">locale</a></code> to create your own locale that controls things
like the default time zone, encoding, decimal mark, big mark, and day/month
names.

locale

integer Number of pixels in spectral data.

npixels

Reads and parses the header of a test file as available through the
ASTER reflectance database. The Name field is retrieved and copied to
attribute "what.measured". The header of the file is preserved as a comment.

Functions for reading, and in some cases writing, foreign files
containing spectral data from spectrometers and their associated software,
output from daylight simulation models in common use, and some spectral
data repositories. As well as functions for exchange of spectral data with
other R packages. Part of the 'r4photobiology' suite,
Aphalo P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

Pedro Aphalo

photobiologyInOut

Read Spectral and Logged Data from Foreign Files

Pedro J. Aphalo

Titta K. Kotilainen

Glenn Davis

read_ASTER_txt function

The locale controls defaults that vary from place to place. The
default locale is US-centric (like R), but you can use
<code><a rd-options='readr' href='locale'>locale</a></code> to create your own locale that controls things
like the default time zone, encoding, decimal mark, big mark, and day/month
names.

read_ASTER_txt: Read File downloaded from ASTER data base.

Description

Usage

Arguments

Value

References