{
    "name": "k80",
    "title": "The Kimura (1980) rate matrix",
    "synonyms": ["k2p"],
    "deprecated-synonyms": ["K80","K2P"],
    "result_type": "RevCTMC[a]",
    "constraints": ["Nucleotides[a]"],
    "call": "SModel.Nucleotides.k80[kappa,a]",
    "args": [
        {
            "arg_name": "kappa",
            "arg_type": "Double",
            "default_value": "~log_normal[log[2],0.25]",
            "description": "Transition\/transversion ratio"
        },
        {
            "arg_name": "a",
            "arg_type": "a",
            "default_value": "getAlphabet",
	    "description": "The alphabet"
        }
    ],
    "description":"Rate matrix with separate transition & transversion rates, equal base frequencies",
    "citation":{"type": "article",
		"title": "A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences",
		"year": "1980",
		"author": [{"name": "Kimura, Motoo"}],
		"journal": {"name": "Journal of molecular evolution", "volume": "16", "number": "2", "pages": "111--120"},
		"identifier": [{"type":"doi","id":"10.1007%2FBF01731581"}]
	       },
    "extract": "all"
}
