dygraphs
Version:
dygraphs is a fast, flexible open source JavaScript charting library.
102 lines (96 loc) • 12.4 kB
JavaScript
/**
* @license
* Copyright 2013 David Eberlein (david.eberlein@ch.sauter-bc.com)
* MIT-licenced: https://opensource.org/licenses/MIT
*/
/**
* @fileoverview DataHandler implementation for the errorBars option.
* @author David Eberlein (david.eberlein@ch.sauter-bc.com)
*/
/*global Dygraph:false */
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _bars = _interopRequireDefault(require("./bars"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
/**
* @constructor
* @extends BarsHandler
*/
var ErrorBarsHandler = function ErrorBarsHandler() {};
ErrorBarsHandler.prototype = new _bars["default"]();
/** @inheritDoc */
ErrorBarsHandler.prototype.extractSeries = function (rawData, i, options) {
// TODO(danvk): pre-allocate series here.
var series = [];
var x, y, variance, point;
var seriesLabel = options.get("labels")[i];
var logScale = options.getForSeries("logscale", seriesLabel);
var sigma = options.getForSeries("sigma", seriesLabel);
for (var j = 0; j < rawData.length; j++) {
x = rawData[j][0];
point = rawData[j][i];
if (logScale && point !== null) {
// On the log scale, points less than zero do not exist.
// This will create a gap in the chart.
if (point[0] <= 0 || point[0] - sigma * point[1] <= 0) {
point = null;
}
}
// Extract to the unified data format.
if (point !== null) {
y = point[0];
if (y !== null && !isNaN(y)) {
variance = sigma * point[1];
// preserve original error value in extras for further
// filtering
series.push([x, y, [y - variance, y + variance, point[1]]]);
} else {
series.push([x, y, [y, y, y]]);
}
} else {
series.push([x, null, [null, null, null]]);
}
}
return series;
};
/** @inheritDoc */
ErrorBarsHandler.prototype.rollingAverage = function (originalData, rollPeriod, options, i) {
rollPeriod = Math.min(rollPeriod, originalData.length);
var rollingData = [];
var seriesLabel = options.get("labels")[i];
var sigma = options.getForSeries("sigma", seriesLabel);
var i, j, y, v, sum, num_ok, stddev, variance, value;
// Calculate the rolling average for the first rollPeriod - 1 points
// where there is not enough data to roll over the full number of points
for (i = 0; i < originalData.length; i++) {
sum = 0;
variance = 0;
num_ok = 0;
for (j = Math.max(0, i - rollPeriod + 1); j < i + 1; j++) {
y = originalData[j][1];
if (y === null || isNaN(y)) continue;
num_ok++;
sum += y;
variance += Math.pow(originalData[j][2][2], 2);
}
if (num_ok) {
stddev = Math.sqrt(variance) / num_ok;
value = sum / num_ok;
rollingData[i] = [originalData[i][0], value, [value - sigma * stddev, value + sigma * stddev]];
} else {
// This explicitly preserves NaNs to aid with "independent
// series".
// See testRollingAveragePreservesNaNs.
v = rollPeriod == 1 ? originalData[i][1] : null;
rollingData[i] = [originalData[i][0], v, [v, v]];
}
}
return rollingData;
};
var _default = ErrorBarsHandler;
exports["default"] = _default;
module.exports = exports.default;
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originalData[i][1] : null;\n      rollingData[i] = [ originalData[i][0], v, [ v, v ] ];\n    }\n  }\n\n  return rollingData;\n};\n\nexport default ErrorBarsHandler;\n"],"mappings":"AAAA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA,YAAY;;AAAC;EAAA;AAAA;AAAA;AAEb;AAAiC;AAEjC;AACA;AACA;AACA;AACA,IAAIA,gBAAgB,GAAG,SAAnBA,gBAAgB,GAAc,CAClC,CAAC;AAEDA,gBAAgB,CAACC,SAAS,GAAG,IAAIC,gBAAW,EAAE;;AAE9C;AACAF,gBAAgB,CAACC,SAAS,CAACE,aAAa,GAAG,UAASC,OAAO,EAAEC,CAAC,EAAEC,OAAO,EAAE;EACvE;EACA,IAAIC,MAAM,GAAG,EAAE;EACf,IAAIC,CAAC,EAAEC,CAAC,EAAEC,QAAQ,EAAEC,KAAK;EACzB,IAAMC,WAAW,GAAGN,OAAO,CAACO,GAAG,CAAC,QAAQ,CAAC,CAACR,CAAC,CAAC;EAC5C,IAAMS,QAAQ,GAAGR,OAAO,CAACS,YAAY,CAAC,UAAU,EAAEH,WAAW,CAAC;EAC9D,IAAMI,KAAK,GAAGV,OAAO,CAACS,YAAY,CAAC,OAAO,EAAEH,WAAW,CAAC;EACxD,KAAM,IAAIK,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGb,OAAO,CAACc,MAAM,EAAED,CAAC,EAAE,EAAE;IACxCT,CAAC,GAAGJ,OAAO,CAACa,CAAC,CAAC,CAAC,CAAC,CAAC;IACjBN,KAAK,GAAGP,OAAO,CAACa,CAAC,CAAC,CAACZ,CAAC,CAAC;IACrB,IAAIS,QAAQ,IAAIH,KAAK,KAAK,IAAI,EAAE;MAC9B;MACA;MACA,IAAIA,KAAK,CAAC,CAAC,CAAC,IAAI,CAAC,IAAIA,KAAK,CAAC,CAAC,CAAC,GAAGK,KAAK,GAAGL,KAAK,CAAC,CAAC,CAAC,IAAI,CAAC,EAAE;QACrDA,KAAK,GAAG,IAAI;MACd;IACF;IACA;IACA,IAAIA,KAAK,KAAK,IAAI,EAAE;MAClBF,CAAC,GAAGE,KAAK,CAAC,CAAC,CAAC;MACZ,IAAIF,CAAC,KAAK,IAAI,IAAI,CAACU,KAAK,CAACV,CAAC,CAAC,EAAE;QAC3BC,QAAQ,GAAGM,KAAK,GAAGL,KAAK,CAAC,CAAC,CAAC;QAC3B;QACA;QACAJ,MAAM,CAACa,IAAI,CAAC,CAAEZ,CAAC,EAAEC,CAAC,EAAE,CAAEA,CAAC,GAAGC,QAAQ,EAAED,CAAC,GAAGC,QAAQ,EAAEC,KAAK,CAAC,CAAC,CAAC,CAAE,CAAE,CAAC;MACjE,CAAC,MAAM;QACLJ,MAAM,CAACa,IAAI,CAAC,CAAEZ,CAAC,EAAEC,CAAC,EAAE,CAAEA,CAAC,EAAEA,CAAC,EAAEA,CAAC,CAAE,CAAE,CAAC;MACpC;IACF,CAAC,MAAM;MACLF,MAAM,CAACa,IAAI,CAAC,CAAEZ,CAAC,EAAE,IAAI,EAAE,CAAE,IAAI,EAAE,IAAI,EAAE,IAAI,CAAE,CAAE,CAAC;IAChD;EACF;EACA,OAAOD,MAAM;AACf,CAAC;;AAED;AACAP,gBAAgB,CAACC,SAAS,CAACoB,cAAc,GACrC,UAASC,YAAY,EAAEC,UAAU,EAAEjB,OAAO,EAAED,CAAC,EAAE;EACjDkB,UAAU,GAAGC,IAAI,CAACC,GAAG,CAACF,UAAU,EAAED,YAAY,CAACJ,MAAM,CAAC;EACtD,IAAIQ,WAAW,GAAG,EAAE;EACpB,IAAMd,WAAW,GAAGN,OAAO,CAACO,GAAG,CAAC,QAAQ,CAAC,CAACR,CAAC,CAAC;EAC5C,IAAMW,KAAK,GAAGV,OAAO,CAACS,YAAY,CAAC,OAAO,EAAEH,WAAW,CAAC;EAExD,IAAIP,CAAC,EAAEY,CAAC,EAAER,CAAC,EAAEkB,CAAC,EAAEC,GAAG,EAAEC,MAAM,EAAEC,MAAM,EAAEpB,QAAQ,EAAEqB,KAAK;;EAEpD;EACA;EACA,KAAK1B,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGiB,YAAY,CAACJ,MAAM,EAAEb,CAAC,EAAE,EAAE;IACxCuB,GAAG,GAAG,CAAC;IACPlB,QAAQ,GAAG,CAAC;IACZmB,MAAM,GAAG,CAAC;IACV,KAAKZ,CAAC,GAAGO,IAAI,CAACQ,GAAG,CAAC,CAAC,EAAE3B,CAAC,GAAGkB,UAAU,GAAG,CAAC,CAAC,EAAEN,CAAC,GAAGZ,CAAC,GAAG,CAAC,EAAEY,CAAC,EAAE,EAAE;MACxDR,CAAC,GAAGa,YAAY,CAACL,CAAC,CAAC,CAAC,CAAC,CAAC;MACtB,IAAIR,CAAC,KAAK,IAAI,IAAIU,KAAK,CAACV,CAAC,CAAC,EACxB;MACFoB,MAAM,EAAE;MACRD,GAAG,IAAInB,CAAC;MACRC,QAAQ,IAAIc,IAAI,CAACS,GAAG,CAACX,YAAY,CAACL,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC;IAChD;IACA,IAAIY,MAAM,EAAE;MACVC,MAAM,GAAGN,IAAI,CAACU,IAAI,CAACxB,QAAQ,CAAC,GAAGmB,MAAM;MACrCE,KAAK,GAAGH,GAAG,GAAGC,MAAM;MACpBH,WAAW,CAACrB,CAAC,CAAC,GAAG,CAAEiB,YAAY,CAACjB,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE0B,KAAK,EACxC,CAACA,KAAK,GAAGf,KAAK,GAAGc,MAAM,EAAEC,KAAK,GAAGf,KAAK,GAAGc,MAAM,CAAC,CAAE;IACxD,CAAC,MAAM;MACL;MACA;MACA;MACAH,CAAC,GAAIJ,UAAU,IAAI,CAAC,GAAID,YAAY,CAACjB,CAAC,CAAC,CAAC,CAAC,CAAC,GAAG,IAAI;MACjDqB,WAAW,CAACrB,CAAC,CAAC,GAAG,CAAEiB,YAAY,CAACjB,CAAC,CAAC,CAAC,CAAC,CAAC,EAAEsB,CAAC,EAAE,CAAEA,CAAC,EAAEA,CAAC,CAAE,CAAE;IACtD;EACF;EAEA,OAAOD,WAAW;AACpB,CAAC;AAAC,eAEa1B,gBAAgB;AAAA;AAAA"}