EMA + RSI + Supertrend Indicator By Abhay Pushkar the best

This script integrates three widely used technical indicators: Exponential Moving Averages (EMA), Relative Strength Index (RSI), and the Supertrend indicator. It helps traders identify potential buy and sell signals based on trend direction and market momentum.

Key Components:
Inputs:

Users can customize the lengths of the EMAs and the RSI, as well as the ATR length and multiplier for the Supertrend calculation. This flexibility allows the indicator to adapt to different trading styles and market conditions.

Parameters:

Short EMA Length: Default is 9.
Long EMA Length: Default is 21.
RSI Length: Default is 14.
RSI Overbought Level: Default is 70.
RSI Oversold Level: Default is 30.
ATR Length: Default is 10.
ATR Multiplier: Default is 3.0.
EMA Calculation:

The script calculates two EMAs:
A short EMA (based on the last 9 periods) for quick signals.
A long EMA (based on the last 21 periods) for broader trend analysis.
RSI Calculation:

The RSI is calculated over a specified period (14 by default) to gauge the market's momentum.
Levels for overbought (70) and oversold (30) conditions are set to assist in identifying potential reversal points.
Supertrend Calculation:

The Supertrend indicator is based on the average true range (ATR) to measure volatility and define the trend direction.
It utilizes the average price (HL2) and adjusts the bands based on a specified ATR multiplier to generate upper and lower bands.
The script dynamically sets the Supertrend value based on the relationship between the closing price and the previous Supertrend value.
Plotting:

The short and long EMAs are plotted on the chart in green and red, respectively.
The Supertrend is plotted with color changes based on the trend direction: green for an uptrend and red for a downtrend.
Buy and Sell Signals:

Buy Signal: Triggered when the short EMA crosses above the long EMA while the RSI is below the oversold level (30), indicating a potential reversal.
Sell Signal: Triggered when the short EMA crosses below the long EMA while the RSI is above the overbought level (70), suggesting a potential market downturn.
Visual Signals:
The script visually represents buy/sell signals on the chart:

Buy Signal: A label appears below the bar with "BUY".
Sell Signal: A label appears above the bar with "SELL".
Use Cases:
This indicator is suitable for traders looking to identify entry and exit points in trending markets while managing risk using momentum analysis. It can be used on various timeframes for both short-term and long-term trading strategies.