{
    "name": "wag",
    "deprecated-synonyms": ["WAG"],
    "result_type": "ExchangeModel[AA]",
    "call": "SModel.wag[a]",
    "args": [
        {
            "arg_name": "a",
            "arg_type": "a",
            "default_value": "getAlphabet",
            "description": "The alphabet"
        }
    ],
    "description": "Empirically derived exchangability matrix for general proteins.\n\nThis command only refers to the symmetric part of the WAG model, not the frequencies.  Frequencies are added by using the `+f` command.  Frequencies are estimated by default but can be fixed to the values estimated in the paper using `+f[wag_freq]`.",
    "citation":{"type": "article",
		"title": "A General Empirical Model of Protein Evolution Derived from Multiple Protein Families Using a Maximum-Likelihood Approach",
		"year": "2001",	
		"author": [{"name": "Whelan, Simon"}, {"name": "Goldman, Nick"}],
		"journal": {"name": "Molecular Biology and Evolution", "volume": "18", "number": "5", "pages": "691--699"},
		"identifier": [{"type":"doi","id":"10.1093/oxfordjournals.molbev.a003851"}]
	       },
    "examples": ["wag","wag+f","wag+f[wag_freq]"]
}
