TauricResearch/TradingAgents · error · ValueError

Indicator {indicator} is not supported. Please choose from:

Error message

Indicator {indicator} is not supported. Please choose from: {list(best_ind_params.keys())}

What it means

ValueError raised in get_stock_stats_info_indicators_window (y_finance.py) when the requested technical indicator name is not a key of the best_ind_params dict. The library supports a fixed indicator set, and the error message lists exactly which names are accepted. Any other indicator string fails fast before any data fetch.

Source

Thrown at tradingagents/dataflows/y_finance.py:155

            "ATR: Averages true range to measure volatility. "
            "Usage: Set stop-loss levels and adjust position sizes based on current market volatility. "
            "Tips: It's a reactive measure, so use it as part of a broader risk management strategy."
        ),
        # Volume-Based Indicators
        "vwma": (
            "VWMA: A moving average weighted by volume. "
            "Usage: Confirm trends by integrating price action with volume data. "
            "Tips: Watch for skewed results from volume spikes; use in combination with other volume analyses."
        ),
        "mfi": (
            "MFI: The Money Flow Index is a momentum indicator that uses both price and volume to measure buying and selling pressure. "
            "Usage: Identify overbought (>80) or oversold (<20) conditions and confirm the strength of trends or reversals. "
            "Tips: Use alongside RSI or MACD to confirm signals; divergence between price and MFI can indicate potential reversals."
        ),
    }

    if indicator not in best_ind_params:
        raise ValueError(
            f"Indicator {indicator} is not supported. Please choose from: {list(best_ind_params.keys())}"
        )

    end_date = curr_date
    curr_date_dt = datetime.strptime(curr_date, "%Y-%m-%d")
    before = curr_date_dt - relativedelta(days=look_back_days)

    # Optimized: Get stock data once and calculate indicators for all dates
    try:
        indicator_data = _get_stock_stats_bulk(symbol, indicator, curr_date)

        # Generate the date range we need
        current_dt = curr_date_dt
        date_values = []

        while current_dt >= before:
            date_str = current_dt.strftime('%Y-%m-%d')

View on GitHub (pinned to a33fd4c0f1)

Solutions

1. Lowercase and match the indicator name against the keys listed in the error message.
2. Inspect tradingagents.dataflows.y_finance best_ind_params to get the authoritative supported list.
3. Add a mapping layer in your code that translates your indicator aliases to the supported names before calling.

Example fix

# before
get_stock_stats_info_indicators_window('NVDA', '2024-06-01', 'BBANDS', 30)

# after
indicator = 'bbands'.lower()
supported = {'ema','sma','rsi','macd','boll','vwma','mfi'}
assert indicator in supported, f'unsupported: {indicator}'
get_stock_stats_info_indicators_window('NVDA', '2024-06-01', indicator, 30)

from tradingagents.dataflows.y_finance import best_ind_params

def normalize_indicator(name: str) -> str:
    key = name.strip().lower()
    if key not in best_ind_params:
        raise ValueError(f'{name!r} not supported; choose from {sorted(best_ind_params)}')
    return key

try:
    report = get_stock_stats_info_indicators_window(symbol, date, indicator, lookback)
except ValueError as e:
    if 'not supported' in str(e):
        indicator = 'ema'  # or drop the indicator from the request
    else:
        raise

When it happens

Trigger: Calling the indicator helper with indicator='ADX' (or any name not in the supported map) — the membership check `if indicator not in best_ind_params` fires immediately. Supported names include keys like 'ema', 'sma', 'rsi', 'macd', 'boll', 'vwma', 'mfi', etc.

Common situations: Passing an indicator abbreviation that differs from the library's naming (e.g. 'BOLL' vs 'boll', 'bb' vs 'boll'), assuming an indicator is supported because TradingView/pandas-ta has it, or forwarding free-text from an LLM/user without normalizing case.

Related errors

• Indicator {indicator} is not supported. Please choose from:
• ticker cannot consist solely of dots: {value!r}
• Unsupported date format: {date_input}
• Date must be string or datetime object, got {type(date_input
• '{indicator}' is not a known macro alias or a valid FRED ser

AI-assisted analysis of TauricResearch/TradingAgents@a33fd4c0f1 (2026-08-14). Data as JSON: /api/errors/2f4f33753d8b999d. Report an issue: GitHub.