TS vela anterior (M15)

This script detects a “TS” (sweep + close back inside) against the immediately previous candle (1-bar), and it triggers only after the candle closes.

What it considers a “TS” (vs the previous candle)
1) Bearish TS (marker above the candle)

It flags a bearish TS when the current candle:

Breaks above the previous candle’s high (high > high[1])

Then closes back below that previous high (close < high[1])

And the close is still inside the previous candle’s range (close > low[1])

Extra filter you requested: the candle must be bearish (black) → close < open

2) Bullish TS (marker below the candle)

It flags a bullish TS when the current candle:

Breaks below the previous candle’s low (low < low[1])

Then closes back above that previous low (close > low[1])

And the close is inside the previous candle’s range (close < high[1])

Extra filter you requested: the candle must be bullish (white) → close > open

What it does when a TS is detected

Plots a small “TS” triangle:

Above the candle for bearish TS

Below the candle for bullish TS

Provides alert conditions so you can create TradingView alerts for:

Any TS

Bearish TS only

Bullish TS only

Notes

It detects TS only against the previous candle (1-bar), not against multi-candle swing highs/lows.

Doji candles (close == open) are excluded by the bullish/bearish color filter.