RateOfChangePercent Python documentation by Barry Gitarts

Barry Gitarts INVESTOR

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Hello,

I'm trying to use the RateOfChangePercent indicator in a python notebook against a series and it seems it's implemtation differs from the c# one but I can not find a working example of how to use it.

The two commented out lines throw errors as invalid constructors and it's not clear what to do with `ROCP` since I can't pass in `btc.close`

```

btc = h1.loc["BTCUSD"]

#rocp = RateOfChangePercent("BTCUSD", 1, Resolution.Daily)

#btc['daily_return'] = qb.Indicator(rocp, "BTCUSD", 360, Resolution.Daily)

ROCP = RateOfChangePercent(1)

btc_history = btc.close

```

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Barry Gitarts

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Daniel Chen

17.8k ,

Hi Barry,

Thank you for your post. Here I will attach a code snippet for you on how to use RateOfChangePercent Indicator in Research Environment.

qb.AddCrypto("BTCUSD")

# Get the data of BTCUSD for the last 100 days 

btc = qb.History(["BTCUSD"], 100, Resolution.Daily)

# Set up Indicator

rocp = RateOfChangePercent(1)

# ROCP for the last 10 days

df_rocp = qb.Indicator(rocp, "BTCUSD", 10, Resolution.Daily)

df_rocp

Generally speaking, we should first add specific Crypto and request historical data, then claim the Indicator we need and finally transform it in the way Research requires. Please note that the days of historical data should be no shorter than the days for the indicator, or it will cause bug due to insufficient data. Hope it helps!

Barry Gitarts INVESTOR

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