MMTMMT Docs
Diagnostics

T408

TA source uses a calendar timeframe

T408

Indicators cannot run directly on variable-length month or year timeframes. Use a fixed-length timeframe, such as hours, days, or weeks, before applying the indicator.

Failing example

script "example"
data chart = subscribe(data.ohlcv, timeframe: 1M)
on chart.update { let value = ta.ema(chart.close, 3) }

Corrected example

script "fixed"
data chart = subscribe(data.ohlcv, timeframe: 1h)
on chart.update { let average = ta.ema(chart.close, 3) }

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