simpleCubic.jseo

{
    /*Below are the two requried parameters*/
    "func": function (xVector, P) {
        return P[0] * Math.pow(xVector[0],3) + P[1];
    },
    "setInitial": function (x_mat, y_vec) {
        // For other data, this must be made more intelligent
        var A = ( y_vec[1] - y_vec[0] ) / (Math.pow(x_mat[1][0], 3) - Math.pow(x_mat[0][0], 3));
        var B = y_vec[0] - A * Math.pow(x_mat[0][0], 3);

        return [A, B];
    },
    
    /*Below is a functional optional parameter, 
        any number of the internal parameters may be left off*/
    "func_fit_params": {
        "maxItt": 1010,     /*Default: 1000*/
        "minPer": 0.9e-6,   /*Default: 1e-6*/
        "checkItt": 4,      /*Default: 3*/
        "converge": 1.21,   /*Default: 1.2*/
        "diverge": -0.51,   /*Default: -0.5*/
        "step": function (initParameters) {
            var ret = [];
            for (var i = 0; i < initParameters.length; i += 1) {
                ret[i] = initParameters[i]/105; /*Default: x/100*/
            }
            return ret;
        }
    },

    /*Below are completely optional, non functional parameters 
        any number may be added, these and all other parameters are
        static.*/
    "description":  "For fitting two parameter Ax^3+B cubic function",
    "stringified": "a * x ^ 3 + b"
}