Horizontal EMA

Designed to plot a horizontal Exponential Moving Average (EMA) line on a TradingView chart. The script allows users to specify the period and source for the EMA calculation. The line remains fixed at the calculated EMA value, providing a visual reference for the trend over the specified period. The script uses version 5 of Pine Script and draws a blue horizontal line at the EMA value on the chart, updating as new data is available.