我有以下格式兩個JavaScript數據陣列，如何在highstocks繪製圖之前連接兩個系列？
series one: [{date:20170220,price:25},{date:20170221,price:25},......{date:20170322,price:25},{date:20170323,price:55}]
series two: [{date:20170220,price:30},{date:20170221,price:28},......{date:20170322,price:24},{date:20170323,price:23}]
兩個值是{日期，價格}。我們不能保證數據可用於在這兩個系列的具體日期。我想創建第三個系列，其中包括每天的average價格。有沒有辦法獲得highstocks中的第三個系列。欣賞任何JavaScript基礎解決方案。
我覺得這個片段會通過你想要的東西來解決你的問題。
只是循環遍歷2個數組並創建第三個數組。我將price鍵作爲您的要求未定義。
var s1 = [{date:20170220, price: 25},{date: 20170221, price: 25},{date: 20170322, price: 25},{date: 20170325,price: 55}];
var s2 = [{date: 20170220,price: 30},{date: 20170221,price: 28},{date: 20170323, price: 24},{date: 20170324, price: 23}];
var sortHelper = function(a, b){return a.date - b.date}
//sorting them for sanity
s1.sort(sortHelper);
s2.sort(sortHelper);
var s1Index = 0, s2Index = 0, s3 = [];
while(s1Index < s1.length || s2Index < s2.length){
if(s1Index >= s1.length){ //for extreme conditions
for(;s2Index < s2.length; s2Index++){
s3.push({
date: s2[s2Index].date
});
}
break;
}
if(s2Index >= s2.length){ //for extreme conditions
for(;s1Index < s1.length; s1Index++){
s3.push({
date: s1[s1Index].date
});
}
break;
}
if(s1[s1Index].date === s2[s2Index].date){
s3.push({
date: s1[s1Index].date,
price: (s1[s1Index].price + s2[s2Index].price)/2
});
s1Index++;
s2Index++;
}else if(s1[s1Index].date < s2[s2Index].date){
s3.push({
date: s1[s1Index].date
});
s1Index++;
}else if(s1[s1Index].date > s2[s2Index].date){
s3.push({
date: s2[s2Index].date
});
s2Index++;
}
}
console.log(s3);
你想爲缺少的日期是什麼？是平均還是保持原樣？ –
對於缺失的日期，我想在第三個系列中保留「未定義」的平均值 – Channa
這個「{20170220,25}」數據結構是什麼？不是一個對象嗎？ –