variables
Store a series or number and reuse it in plots and rules.
Reference/Language basics/Language
name = expression
Left side is a name, right side is any expression. Names are case-insensitive. input values are also stored this way so the UI can change them.
Return value
series
Example
fastLen = input 9 as "Fast EMA" slowLen = input 21 as "Slow EMA" fast = ema(close, fastLen) slow = ema(close, slowLen) plot fast as "Fast" when fast crosses above slow buy