Netcdfreadr

Purpose

Reads in netCDF files and outputs a DataSet and or structure.

Synopsis

x = netcdfreadr(filenames, options);

Description

If no file is given (filenames) then prompts user for filename/s. Default option settings are set to handle Mass Spectroscopy (MS) data.

NOTE: This function uses netCDF Library Functions available in Matlab 2009a and newer.

Inputs

• filename = a text string with the name of a spectral file or a cell of strings of 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 AIT files in the identified folder.

Outputs

• x = takes one of 3 forms:

1. rawdata : Genereic structure of all data.

   .varname = variable name.

   .xtype = variable datatype.

   .varDimsIDs = dimensions IDs.

   .varAtts = number of attributes.

   .varID = variable ID.

   .data = variable data.

   .attributes(j).attname = attribute name.

   .attributes(j).attval = attribute value.

2. datastruct : Structure of data with variable names as field names.
3. dso : Dataset Object (only when .getms = yes).

Options

options = a structure array with the following fields:

• output : [ { 'dso' } | 'rawdata' | 'datastruct' | 'all'] What output to pass.
• getms : [ { 'yes' } | 'no' ] Get Mass Spec dataset from file.
• massoffset : [ 0 ] Shift point for round-off (when using .getms).
• chunksize : [ 1.5 ] Divide data into chunks of chunksize*1,000,000 elements when contructing a MS dataset. Value of 1.5 million is good default for 32bit systems.
• massres : [1.0] desired output resolution in m/z units (when using .getms)

See Also

Data Importing Formats, asdreadr, asfreadr, fluoromaxreadr, gwscanreadr, hjyreadr, jcampreadr, opusreadr, pdfreadr, pereadr, spareadr, spcreadr, writeasf, xclreadr