Im Folgenden finden Sie meine aktuellen Code:Wie kann ich meinen Python-Code verbessern, um ihn zu beschleunigen?
import pandas as pd
import math
import csv
fund = 10000
print("investment",fund)
pval = 0
oldportfolio = []
dts = ["06 Feb 2017", "07 Feb 2017", "08 Feb 2017", "09 Feb 2017", "10 Feb 2017", "13 Feb 2017", "14 Feb 2017", "15 Feb 2017", "16 Feb 2017", "17 Feb 2017",
"20 Feb 2017", "21 Feb 2017", "22 Feb 2017", "23 Feb 2017", "27 Feb 2017"]
for dt in dts:
files = ["stocklistcustom.csv"]
for file in files:
df = pd.read_csv(file, header=None)
i = 0
filecount = len(df)
result = []
while i < filecount:
# while i < 10:
name = df[0][i]
link = df[1][i]
mcsym = df[2][i]
i = i + 1
filepath = "data/nse/his/" + mcsym + ".csv"
try:
sp = pd.read_csv(filepath, header=None)
endrow = sp[sp[0] == dt].index[0] + 1
parray = []
tarray = []
starray = []
intdate = []
p1 = 0
p2 = 0
p3 = 0
p4 = 0
j = 0
mavg15 = ''
mavg60 = ''
olddiff = 0
days = 2
strtrow = endrow - days - 60
for k in range (strtrow, endrow):
date = sp[0][k]
price = float(sp[4][k])
k = k + 1
parray.append(price)
j = j + 1
strtavg = j - 15
mavg15 = sum(parray[strtavg:j])/15
strtavg = j - 60
mavg60 = sum(parray[strtavg:j])/60
# buy criteria
if j > 59:
diff = mavg60 - mavg15
if diff < 0 and olddiff > 0:
trigger = 1
intdate.append(date)
else:
trigger = 0
tarray.append(trigger)
olddiff = diff
# sell criteria
if j == (days + 60):
pricep = (price - p1) * 100/p1
p1p = (p1 - p2) * 100/p2
p2p = (p2 - p3) * 100/p3
p3p = (p3 - p4) * 100/p4
if pricep < -5 or pricep > 8:
sell = 1
if price < p1 and p1 < p2 and p2 < p3:
sell = 1
else:
sell = 0
p4 = p3
p3 = p2
p2 = p1
p1 = price
if sum(tarray) > 0:
result.append([name,mcsym,"buy",price])
if sell > 0:
result.append([name,mcsym,"sell",price])
except:
# print(name,"not found")
pass
# print(result)
output = "output/triggers/"+dt+"trigger.csv"
with open(output, "wb") as f:
writer = csv.writer(f)
writer.writerows(result)
print(output,"exported")
Der obige Code erstellen ein Array Ergebnis und Exporte verschiedene CSV-Dateien mit dem Namen Anrufe ...
Der folgende Code nun die Daten in Ergebnisarray verarbeiten Portfolio zu berechnen Wert
# Code for calculating investment
portfolio = []
for row in result:
if row[2] == "sell" and len(oldportfolio) > 0:
pindex = 0
for buys in oldportfolio:
bindex = 0
for stock in buys:
if row[0] == stock[0]:
sellqty = stock[2]
sellp = row[3]
sellval = sellqty * sellp
purchasep = stock[1]
sellcost = purchasep * sellqty
print(dt,"selling",row[0],row[1],sellp,sellqty,sellval)
# print(oldportfolio)
del oldportfolio[pindex][bindex]
# print(oldportfolio)
fund = fund + sellval
pval = pval - sellcost
bindex = bindex + 1
pindex = pindex + 1
# print("op", oldportfolio)
# print(dt,"fund after selling",fund)
buycount = sum(1 for row in result if row[2]==("buy"))
if buycount > 0:
maxinvest = fund/buycount
for row in result:
if row[2] == "buy":
name = row[0]
price = row[3]
qty = math.floor(maxinvest/price)
if qty > 0:
val = qty * price
print(dt,"buying",name,row[1],price,qty,val)
portfolio.append([name,price,qty,val])
fund = fund - val
# print("portfolio",portfolio)
pval = pval + sum(row[3] for row in portfolio)
print(dt,"cash",fund,"portfolio value",pval,"total",fund+pval)
oldportfolio.append(portfolio)
print(oldportfolio)
Es gibt mir den Wert des Portfolios für jeden Tag nach dem Handel basierend auf bestimmten Regeln. Aber seine Ausführungszeit ist zu viel. Wie kann man die Ausführungszeit reduzieren?
Auch ich muss pval ändern, wie es im aktuellen Code falsch berechnet wird. Es muss basierend auf den jeweiligen Tagespreisen berechnet werden.
http://codereview.stackexchange.com –
Diese Frage wurde wie vorgeschlagen in den Codereview verschoben. –