/*
title: Linear Regression
category: scatter
titleCN: 线性回归（使用统计插件）
difficulty: 2
*/

// See https://github.com/ecomfe/echarts-stat
echarts.registerTransform(ecStat.transform.regression);

var data = [
    [0.067732, 3.176513],
    [0.42781, 3.816464],
    [0.995731, 4.550095],
    [0.738336, 4.256571],
    [0.981083, 4.560815],
    [0.526171, 3.929515],
    [0.378887, 3.52617],
    [0.033859, 3.156393],
    [0.132791, 3.110301],
    [0.138306, 3.149813],
    [0.247809, 3.476346],
    [0.64827, 4.119688],
    [0.731209, 4.282233],
    [0.236833, 3.486582],
    [0.969788, 4.655492],
    [0.607492, 3.965162],
    [0.358622, 3.5149],
    [0.147846, 3.125947],
    [0.63782, 4.094115],
    [0.230372, 3.476039],
    [0.070237, 3.21061],
    [0.067154, 3.190612],
    [0.925577, 4.631504],
    [0.717733, 4.29589],
    [0.015371, 3.085028],
    [0.33507, 3.44808],
    [0.040486, 3.16744],
    [0.212575, 3.364266],
    [0.617218, 3.993482],
    [0.541196, 3.891471],
    [0.045353, 3.143259],
    [0.126762, 3.114204],
    [0.556486, 3.851484],
    [0.901144, 4.621899],
    [0.958476, 4.580768],
    [0.274561, 3.620992],
    [0.394396, 3.580501],
    [0.87248, 4.618706],
    [0.409932, 3.676867],
    [0.908969, 4.641845],
    [0.166819, 3.175939],
    [0.665016, 4.26498],
    [0.263727, 3.558448],
    [0.231214, 3.436632],
    [0.552928, 3.831052],
    [0.047744, 3.182853],
    [0.365746, 3.498906],
    [0.495002, 3.946833],
    [0.493466, 3.900583],
    [0.792101, 4.238522],
    [0.76966, 4.23308],
    [0.251821, 3.521557],
    [0.181951, 3.203344],
    [0.808177, 4.278105],
    [0.334116, 3.555705],
    [0.33863, 3.502661],
    [0.452584, 3.859776],
    [0.69477, 4.275956],
    [0.590902, 3.916191],
    [0.307928, 3.587961],
    [0.148364, 3.183004],
    [0.70218, 4.225236],
    [0.721544, 4.231083],
    [0.666886, 4.240544],
    [0.124931, 3.222372],
    [0.618286, 4.021445],
    [0.381086, 3.567479],
    [0.385643, 3.56258],
    [0.777175, 4.262059],
    [0.116089, 3.208813],
    [0.115487, 3.169825],
    [0.66351, 4.193949],
    [0.254884, 3.491678],
    [0.993888, 4.533306],
    [0.295434, 3.550108],
    [0.952523, 4.636427],
    [0.307047, 3.557078],
    [0.277261, 3.552874],
    [0.279101, 3.494159],
    [0.175724, 3.206828],
    [0.156383, 3.195266],
    [0.733165, 4.221292],
    [0.848142, 4.413372],
    [0.771184, 4.184347],
    [0.429492, 3.742878],
    [0.162176, 3.201878],
    [0.917064, 4.648964],
    [0.315044, 3.510117],
    [0.201473, 3.274434],
    [0.297038, 3.579622],
    [0.336647, 3.489244],
    [0.666109, 4.237386],
    [0.583888, 3.913749],
    [0.085031, 3.22899],
    [0.687006, 4.286286],
    [0.949655, 4.628614],
    [0.189912, 3.239536],
    [0.844027, 4.457997],
    [0.333288, 3.513384],
    [0.427035, 3.729674],
    [0.466369, 3.834274],
    [0.550659, 3.811155],
    [0.278213, 3.598316],
    [0.918769, 4.692514],
    [0.886555, 4.604859],
    [0.569488, 3.864912],
    [0.066379, 3.184236],
    [0.335751, 3.500796],
    [0.426863, 3.743365],
    [0.395746, 3.622905],
    [0.694221, 4.310796],
    [0.27276, 3.583357],
    [0.503495, 3.901852],
    [0.067119, 3.233521],
    [0.038326, 3.105266],
    [0.599122, 3.865544],
    [0.947054, 4.628625],
    [0.671279, 4.231213],
    [0.434811, 3.791149],
    [0.509381, 3.968271],
    [0.749442, 4.25391],
    [0.058014, 3.19471],
    [0.482978, 3.996503],
    [0.466776, 3.904358],
    [0.357767, 3.503976],
    [0.949123, 4.557545],
    [0.41732, 3.699876],
    [0.920461, 4.613614],
    [0.156433, 3.140401],
    [0.656662, 4.206717],
    [0.616418, 3.969524],
    [0.853428, 4.476096],
    [0.133295, 3.136528],
    [0.693007, 4.279071],
    [0.178449, 3.200603],
    [0.199526, 3.299012],
    [0.073224, 3.209873],
    [0.286515, 3.632942],
    [0.182026, 3.248361],
    [0.621523, 3.995783],
    [0.344584, 3.563262],
    [0.398556, 3.649712],
    [0.480369, 3.951845],
    [0.15335, 3.145031],
    [0.171846, 3.181577],
    [0.867082, 4.637087],
    [0.223855, 3.404964],
    [0.528301, 3.873188],
    [0.890192, 4.633648],
    [0.106352, 3.154768],
    [0.917886, 4.623637],
    [0.014855, 3.078132],
    [0.567682, 3.913596],
    [0.068854, 3.221817],
    [0.603535, 3.938071],
    [0.53205, 3.880822],
    [0.651362, 4.176436],
    [0.901225, 4.648161],
    [0.204337, 3.332312],
    [0.696081, 4.240614],
    [0.963924, 4.532224],
    [0.98139, 4.557105],
    [0.987911, 4.610072],
    [0.990947, 4.636569],
    [0.736021, 4.229813],
    [0.253574, 3.50086],
    [0.674722, 4.245514],
    [0.939368, 4.605182],
    [0.235419, 3.45434],
    [0.110521, 3.180775],
    [0.218023, 3.38082],
    [0.869778, 4.56502],
    [0.19683, 3.279973],
    [0.958178, 4.554241],
    [0.972673, 4.63352],
    [0.745797, 4.281037],
    [0.445674, 3.844426],
    [0.470557, 3.891601],
    [0.549236, 3.849728],
    [0.335691, 3.492215],
    [0.884739, 4.592374],
    [0.918916, 4.632025],
    [0.441815, 3.75675],
    [0.116598, 3.133555],
    [0.359274, 3.567919],
    [0.814811, 4.363382],
    [0.387125, 3.560165],
    [0.982243, 4.564305],
    [0.78088, 4.215055],
    [0.652565, 4.174999],
    [0.87003, 4.58664],
    [0.604755, 3.960008],
    [0.255212, 3.529963],
    [0.730546, 4.213412],
    [0.493829, 3.908685],
    [0.257017, 3.585821],
    [0.833735, 4.374394],
    [0.070095, 3.213817],
    [0.52707, 3.952681],
    [0.116163, 3.129283]
];


option = {
    dataset: [{
        source: data
    }, {
        transform: {
            type: 'ecStat:regression'
            // 'linear' by default.
            // config: { method: 'linear', formulaOn: 'end'}
        }
    }],
    title: {
        text: 'Linear Regression',
        subtext: 'By ecStat.regression',
        sublink: 'https://github.com/ecomfe/echarts-stat',
        left: 'center'
    },
    legend: {
        bottom: 5
    },
    tooltip: {
        trigger: 'axis',
        axisPointer: {
            type: 'cross'
        }
    },
    xAxis: {
        splitLine: {
            lineStyle: {
                type: 'dashed'
            }
        },
    },
    yAxis: {
        splitLine: {
            lineStyle: {
                type: 'dashed'
            }
        },
    },
    series: [{
        name: 'scatter',
        type: 'scatter'
    }, {
        name: 'line',
        type: 'line',
        datasetIndex: 1,
        symbolSize: 0.1,
        symbol: 'circle',
        label: { show: true, fontSize: 16 },
        labelLayout: { dx: -20 },
        encode: { label: 2, tooltip: 1 }
    }]
};