Каждый раз, когда вы покупаете биткойны по фиксированной сумме, вы их держите.
var total_cny = 0;
var days = 0;
var total_btc = 0;
function main() {
var chart = createChart();
while( true) {
total_cny+=FIXED_AMOUNT;
days++;
var ticker = exchange.GetTicker();
total_btc += FIXED_AMOUNT/ticker.Last;
var current_value = ticker.Last * total_btc;
LogProfit(current_value - total_cny);
var time = new Date().getTime();
chart.add([0, [time, total_cny ]]);
chart.add([1, [time, current_value]]);
Sleep(PERIOD*1000);
}
}
function createChart() {
var options = {
rangeSelector: {
selected: 4
},
__isStock: true,
yAxis: {
labels: {
formatter: function () {
return (this.value > 0 ? ' + ' : '') + this.value + '%';
}
},
plotLines: [{
value: 0,
width: 2,
color: 'silver'
}]
},
plotOptions: {
series: {
compare: 'percent'
}
},
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b> ({point.change}%)<br/> {point.text}',
valueDecimals: 2
},
series: [
{
name: '成本',
data: []
},
{
name: '账户价值',
data: []
}
]
};
return Chart(options);
}