
Apabila menulis dan menggunakan strategi, beberapa data kitaran K-line yang tidak biasa sering digunakan. Walau bagaimanapun, pertukaran dan sumber data tidak menyediakan data untuk tempoh ini. Ia hanya boleh disintesis dengan menggunakan data daripada kitaran sedia ada. Algoritma sintesis sudah mempunyai versi JavaScript (Pautan), sebenarnya, sangat mudah untuk memindahkan kod JavaScript ke versi Python. Seterusnya, mari tulis versi Python bagi algoritma sintesis K-line.
function GetNewCycleRecords (sourceRecords, targetCycle) { // K线合成函数
var ret = []
// 首先获取源K线数据的周期
if (!sourceRecords || sourceRecords.length < 2) {
return null
}
var sourceLen = sourceRecords.length
var sourceCycle = sourceRecords[sourceLen - 1].Time - sourceRecords[sourceLen - 2].Time
if (targetCycle % sourceCycle != 0) {
Log("targetCycle:", targetCycle)
Log("sourceCycle:", sourceCycle)
throw "targetCycle is not an integral multiple of sourceCycle."
}
if ((1000 * 60 * 60) % targetCycle != 0 && (1000 * 60 * 60 * 24) % targetCycle != 0) {
Log("targetCycle:", targetCycle)
Log("sourceCycle:", sourceCycle)
Log((1000 * 60 * 60) % targetCycle, (1000 * 60 * 60 * 24) % targetCycle)
throw "targetCycle cannot complete the cycle."
}
var multiple = targetCycle / sourceCycle
var isBegin = false
var count = 0
var high = 0
var low = 0
var open = 0
var close = 0
var time = 0
var vol = 0
for (var i = 0 ; i < sourceLen ; i++) {
// 获取 时区偏移数值
var d = new Date()
var n = d.getTimezoneOffset()
if (((1000 * 60 * 60 * 24) - sourceRecords[i].Time % (1000 * 60 * 60 * 24) + (n * 1000 * 60)) % targetCycle == 0) {
isBegin = true
}
if (isBegin) {
if (count == 0) {
high = sourceRecords[i].High
low = sourceRecords[i].Low
open = sourceRecords[i].Open
close = sourceRecords[i].Close
time = sourceRecords[i].Time
vol = sourceRecords[i].Volume
count++
} else if (count < multiple) {
high = Math.max(high, sourceRecords[i].High)
low = Math.min(low, sourceRecords[i].Low)
close = sourceRecords[i].Close
vol += sourceRecords[i].Volume
count++
}
if (count == multiple || i == sourceLen - 1) {
ret.push({
High : high,
Low : low,
Open : open,
Close : close,
Time : time,
Volume : vol,
})
count = 0
}
}
}
return ret
}
Jika terdapat algoritma JavaScript, ia boleh diterjemahkan dan dipindahkan ke Python baris demi baris Apabila menemui fungsi terbina dalam JavaScript atau kaedah yang wujud, cuma cari kaedah yang sepadan dalam Python, jadi pemindahan agak mudah.
Logik algoritma adalah sama, kecuali untuk panggilan fungsi JavaScriptvar n = d.getTimezoneOffset()Apabila dialihkan ke Python, gunakan pustaka masa Pythonn = time.altzonemenggantikan. Perbezaan lain hanya dalam sintaks bahasa (seperti penggunaan untuk gelung, perbezaan dalam nilai Boolean, perbezaan dalam penggunaan logik dan, bukan logik, logik atau, dsb.).
import time
def GetNewCycleRecords(sourceRecords, targetCycle):
ret = []
# 首先获取源K线数据的周期
if not sourceRecords or len(sourceRecords) < 2 :
return None
sourceLen = len(sourceRecords)
sourceCycle = sourceRecords[-1]["Time"] - sourceRecords[-2]["Time"]
if targetCycle % sourceCycle != 0 :
Log("targetCycle:", targetCycle)
Log("sourceCycle:", sourceCycle)
raise "targetCycle is not an integral multiple of sourceCycle."
if (1000 * 60 * 60) % targetCycle != 0 and (1000 * 60 * 60 * 24) % targetCycle != 0 :
Log("targetCycle:", targetCycle)
Log("sourceCycle:", sourceCycle)
Log((1000 * 60 * 60) % targetCycle, (1000 * 60 * 60 * 24) % targetCycle)
raise "targetCycle cannot complete the cycle."
multiple = targetCycle / sourceCycle
isBegin = False
count = 0
barHigh = 0
barLow = 0
barOpen = 0
barClose = 0
barTime = 0
barVol = 0
for i in range(sourceLen) :
# 获取时区偏移数值
n = time.altzone
if ((1000 * 60 * 60 * 24) - (sourceRecords[i]["Time"] * 1000) % (1000 * 60 * 60 * 24) + (n * 1000)) % targetCycle == 0 :
isBegin = True
if isBegin :
if count == 0 :
barHigh = sourceRecords[i]["High"]
barLow = sourceRecords[i]["Low"]
barOpen = sourceRecords[i]["Open"]
barClose = sourceRecords[i]["Close"]
barTime = sourceRecords[i]["Time"]
barVol = sourceRecords[i]["Volume"]
count += 1
elif count < multiple :
barHigh = max(barHigh, sourceRecords[i]["High"])
barLow = min(barLow, sourceRecords[i]["Low"])
barClose = sourceRecords[i]["Close"]
barVol += sourceRecords[i]["Volume"]
count += 1
if count == multiple or i == sourceLen - 1 :
ret.append({
"High" : barHigh,
"Low" : barLow,
"Open" : barOpen,
"Close" : barClose,
"Time" : barTime,
"Volume" : barVol,
})
count = 0
return ret
# 测试
def main():
while True:
r = exchange.GetRecords()
r2 = GetNewCycleRecords(r, 1000 * 60 * 60 * 4)
ext.PlotRecords(r2, "r2")
Sleep(1000)
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Menguji semula carta 4 jam sintetik

Kod di atas hanya digunakan sebagai rujukan pembelajaran Jika digunakan dalam strategi tertentu, sila ubah suai dan uji mengikut keperluan anda. Jika anda mempunyai sebarang BUG atau cadangan untuk penambahbaikan, sila tinggalkan mesej, terima kasih banyak o^_^o