View source for Spcreadr

===Purpose===
Reads a Galactic SPC file.
===Synopsis===
:x = spcreadr(filename,''subs,wlrange,options'')
:[data,xaxis,auditlog] = spcreadr(filename,''subs,wlrange,options'')
===Description===
SPCREADR reads a Galactic SPC file.
INPUT:
* filename = a text string with the name of a SPC file or a cell of strings of SPC filenames.
*  If filename is omitted or blank, the user will be prompted to select a file graphically.
*  If filename is an empty cell {}, the user will be prompted to select a folder and then one or more SPC files in the folder the identified folder.
OPTIONAL INPUTS:
* ''subs'' = [], scalar or vector indicating the sub-files to read, e.g. [3] reads sub-file 3, [3:9] reads sub-files 3 to 9, {default reads all sub-files} and
* ''wlrange'' = [], two element vector (inclusive endpoints) of the wavelength range to return {default returns the entire wavelength range}.
OUTPUTS:
* x = a dataset object containing the spectrum, or
* data = a data array with measured intensities,
* xaxis = vector containing the wavelength axis, and
* auditlog = char array with the log from the file.
===Options===
* ''options'' =  a structure array with the following fields:
* axismatching: [ 'none' | 'intersect' |{'interpolate'} ], defines action taken when the x-axes of two spectra being read do not match. The options are:
*   'intersect' returns only the points where the spectral x-axis values overlap excatly.
*  'interpolate' returns the overlapping portions with linear interpolation to match spectral points exactly. As no extrapolation will be done, the returned spectra will cover the smallest common spectral range. 
*  'none' ignores x-axis differences as long as the number of data points is the same in all spectra.
* textauditlog: [ {'no'} | 'yes' ], governs output of audit log contents. When 'yes', the auditlog is returned as a raw text array. Otherwise, the auditlog is returned as a structure with field names taken from  auditlog keys.
===See Also===
[[areadr]], [[xclgetdata]], [[xclputdata]], [[xclreadr]]