@dickyindra/klinecharts
Version:
Lightweight k-line chart built with html5 canvas
56 lines (49 loc) • 1.39 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.
*/
/**
* 价量趋势指标
* 公式:
* X = (CLOSE - REF(CLOSE, 1)) / REF(CLOSE, 1) * VOLUME
* PVT = SUM(X)
*
*/
var _default = {
name: 'PVT',
shortName: 'PVT',
plots: [{
key: 'pvt',
title: 'PVT: ',
type: 'line'
}],
calcTechnicalIndicator: function calcTechnicalIndicator(dataList) {
var sum = 0;
return dataList.map(function (kLineData, i) {
var pvt = {};
var close = kLineData.close;
var volume = kLineData.volume;
var preClose = (dataList[i - 1] || kLineData).close;
var x = 0;
if (preClose !== 0) {
x = (close - preClose) / preClose * volume;
}
sum += x;
pvt.pvt = sum;
return pvt;
});
}
};
exports.default = _default;