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use .ix instead of .loc for small perf boost

This commit is contained in:
Janne Sinivirta 2017-10-29 16:16:23 +02:00
parent 3b1dc36d8a
commit 9b00fc3474
1 changed files with 2 additions and 2 deletions
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4
freqtrade/analyze.py
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@ -54,14 +54,14 @@ def populate_buy_trend(dataframe: DataFrame) -> DataFrame:
:param dataframe: DataFrame
:return: DataFrame with buy column
"""
dataframe.loc[
dataframe.ix[
(dataframe['close'] < dataframe['sma']) &
(dataframe['tema'] <= dataframe['blower']) &
(dataframe['mfi'] < 25) &
(dataframe['fastd'] < 25) &
(dataframe['adx'] > 30),
'buy'] = 1
dataframe.loc[dataframe['buy'] == 1, 'buy_price'] = dataframe['close']
dataframe.ix[dataframe['buy'] == 1, 'buy_price'] = dataframe['close']
return dataframe