which default params is different between vbt.RSI.run() & vbt.talib('RSI').run().real

[Lianyihwei]

What is the difference between the default parameters between vbt.RSI.run() & vbt.talib('RSI').run().real (window=12)
I use data "2330.tw" period="3y" intervals="1d"

vbt.RSI.run() give me RSI
2022-06-28 00:00:00+00:00 29.738898
2022-06-29 00:00:00+00:00 33.098898
2022-06-30 00:00:00+00:00 27.982053

vbt.talib('RSI').run().real is same as talib.RSI()
2022-06-28 40.082981
2022-06-29 36.866736
2022-06-30 30.671111

Which params are different between them?
df = yf.download("2330.tw", period="3y", intervals="1d")
rsi_vbt = vbt.RSI.run(tsmc.Close, window=12)
rsi_vbt_talib = vbt.talib('RSI').run(df['Close'], timeperiod=12).real
rsi_talib = talib.RSI(df.Close, timeperiod=12)

[Lianyihwei]

i have get the answer on offical webside

If you compare RSI values of vectorbt and TA-Lib, you will notice that they differ. There are different smoothing methods: vectorbt uses SMA and EMA, while other libraries and TradingView use the original Wilder's method. There is no right or wrong method. If you want to use the Wilder's method, use vbt.talib('RSI').