sar 指标中使用Heiken Ashi k线，研究好好几个小时了得到的结果都是与原k线结果一直，是因为平台的talib做了什么限制么？
最小值已经发生变化了，为什么sar值还是相同的？
2020-02-10 21:35:43 信息 sar2 9375.691019486052
2020-02-10 21:35:43 信息 sar1 9375.691019486052
2020-02-10 21:35:43 信息 9346.08 9294.560000000001
2020-02-10 21:35:43 信息 9346.08 9300

function harecords (records) {

var harecords = []

for (var i = 0; i < records.length; i++) {
if (i>0) {

close=(records[i].High+records[i].Low+records[i].Open+records[i].Close)/4
open=(records[i-1].Open+records[i-1].Close)/2
high=Math.max(records[i].High,close,open)
low=Math.min(records[i].Low,close,open)

var currrecords = {
Time : records[i].Time,
Open : open,
High : high,
Low : low,
Close : close,
Volume : records[i].Volume
}
}
else {
continue

}
harecords.push(currrecords)

}

return harecords
}

function main() {
var records = exchange.GetRecords(PERIOD_H1); //可以填入不同k线周期，比如PERIOD_M1,PERIOD_M30,PERIOD_H1......

var harecords=harecords(records)
var h=200
Log(records[records.length-h].High,records[records.length-h].Low)
Log(harecords[harecords.length-h].High,harecords[harecords.length-h].Low)

var sar1=talib.SAR(records,0.015,0.2);
var sar2=talib.SAR(harecords,0.015,0.2);
Log('sar1',sar1[records.length-h])
Log('sar2',sar2[harecords.length-h])

}