7 SMMA & 20 EMA -Amoy

7 SMMA (Smoothed Moving Average):

Pine Script doesn't have a built-in function for SMMA, so I used a recursive calculation based on the previous SMMA value.
The first value is calculated using a simple moving average (ta.sma()), and for subsequent values, the formula incorporates the previous SMMA value.
20 EMA (Exponential Moving Average):

The 20-period EMA is calculated using ta.ema().
Plotting:The script plots both the 7 SMMA (orange line) and the 20 EMA (blue line) on the chart.
Buy/Sell Signals:

A buy signal is generated when the 20 EMA crosses above the 7 SMMA.
A sell signal is generated when the 20 EMA crosses below the 7 SMMA.
These signals are marked with green "BUY" and red "SELL" labels on the chart.
How to use:
Copy and paste the code into TradingView's Pine Script editor.
Add the script to a chart to visualize both moving averages and the crossover signals.
Let me know if you need further modifications or have other requests!