@dickyindra/klinecharts
Version:
Lightweight k-line chart built with html5 canvas
69 lines (61 loc) • 1.79 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
/**
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* 多空指标
* 公式: BBI = (MA(CLOSE, M) + MA(CLOSE, N) + MA(CLOSE, O) + MA(CLOSE, P)) / 4
*
*/
var _default = {
name: 'BBI',
shortName: 'BBI',
series: 'price',
precision: 2,
calcParams: [3, 6, 12, 24],
shouldCheckParamCount: true,
shouldOhlc: true,
plots: [{
key: 'bbi',
title: 'BBI: ',
type: 'line'
}],
calcTechnicalIndicator: function calcTechnicalIndicator(dataList, _ref) {
var params = _ref.params;
var maxPeriod = Math.max.apply(null, params);
var closeSums = [];
var mas = [];
return dataList.map(function (kLineData, i) {
var bbi = {};
var close = kLineData.close;
params.forEach(function (p, index) {
closeSums[index] = (closeSums[index] || 0) + close;
if (i >= p - 1) {
mas[index] = closeSums[index] / p;
closeSums[index] -= dataList[i - (p - 1)].close;
}
});
if (i >= maxPeriod - 1) {
var maSum = 0;
mas.forEach(function (ma) {
maSum += ma;
});
bbi.bbi = maSum / 4;
}
return bbi;
});
}
};
exports.default = _default;