Try plotting indicators sample but only candles charting display

Quỳnh H Nguyễn

Hello,

I'm very rookie on BackTrader, and hope to understand it first before take a dive into. And I do not find the error I got (or misunderstanding) here.

I downloaded data in file, under csv format: {Index,Open,High,Low,Close,Volume}. The index is timestamp format, at timeframe 5 minutes.

Index,Open,High,Low,Close,Volume
1525226400,1033.0,1034.0,1032.5,1032.0,277
1525226700,1032.1,1032.9,1031.0,1032.0,548
1525227000,1032.0,1032.5,1031.3,1031.0,246
1525227300,1032.4,1032.5,1030.3,1030.0,666
1525227600,1030.6,1030.6,1026.4,1027.0,1058
1525227900,1027.3,1027.3,1025.2,1025.0,1189
1525228200,1026.1,1029.6,1026.1,1028.0,614
1525228500,1028.4,1028.9,1026.8,1027.0,584
1525228800,1028.0,1031.1,1027.7,1031.0,861
...

I used the sample code from ta-lib integration: https://www.backtrader.com/blog/posts/2016-07-26-talib-integration/talib-integration/ to check the indicators and plotting. But I load pandas from csv and resample data into 60 minutes or 1 day.

    # Get a pandas dataframe
    datapath = ('Index-2018.csv')

    dataframe = pandas.read_csv(datapath,
                                skiprows=0,
                                header=0,
                                parse_dates=True,
                                index_col=0)

    dataframe.index = pandas.to_datetime(dataframe.index, unit='s')

    # Set timeframe of original history data
    data = btfeeds.PandasData(dataname=dataframe, timeframe=bt.TimeFrame.Minutes, compression=5)

    # Resample desired timeframe
    # cerebro.resampledata(data, timeframe=bt.TimeFrame.Minutes, compression=60)
    cerebro.resampledata(data, timeframe=bt.TimeFrame.Days, compression=1)

Then run the test likes:

./talibtest.py --plot --ind sma
or 
./talibtest.py --plot --ind stoc
...

But the results display only candles charting. There is no indicator plotting on.

So where is my error, wrong logic here? Thanks so much!

Quỳnh H Nguyễn

Oh, mainly cerebro missed the adding strategy. So sorry when annoy everyone!