CompareTo

Determines what the current metric value should be compared against when evaluating alert conditions.

When using TIME_PERIOD, the allowed compare_bin_delta values depend on bin_size:

Example

# Compare current hourly drift to same hour yesterday (24 hours ago)
alert_rule = AlertRule(
    compare_to=CompareTo.TIME_PERIOD,
    bin_size=BinSize.HOUR,
    compare_bin_delta=24  # 24 hours ago
)

# Compare daily metrics to last week (7 days ago)
alert_rule = AlertRule(
    compare_to=CompareTo.TIME_PERIOD,
    bin_size=BinSize.DAY,
    compare_bin_delta=7  # 7 days ago
)

# Compare current accuracy to absolute minimum (no time comparison)
alert_rule = AlertRule(
    compare_to=CompareTo.RAW_VALUE,
    threshold=0.85  # Must be above 85%
)

`TIME_PERIOD` = `"time_period"`

Compare to a historical time period (relative comparison). Useful for detecting changes over time, seasonal patterns, etc. When using TIME_PERIOD, the compare_bin_delta parameter specifies how many time periods back to compare against.

`RAW_VALUE` = `"raw_value"`

Compare to an absolute threshold value (absolute comparison). Useful for hard limits and business rule enforcement. When using RAW_VALUE, compare_bin_delta is ignored.

Fiddler Python Client SDK

Fiddler Evals SDK

Fiddler OTel SDK

Fiddler LangGraph SDK

Fiddler LangChain SDK

Fiddler Google ADK SDK

Fiddler Strands Agent SDK

Fiddler OTel JS SDK

Fiddler LangGraph JS SDK

Fiddler LangChain JS SDK

Example

`TIME_PERIOD` = `"time_period"`

`RAW_VALUE` = `"raw_value"`

​Example

​TIME_PERIOD = "time_period"

​RAW_VALUE = "raw_value"

Example

`TIME_PERIOD` = `"time_period"`

`RAW_VALUE` = `"raw_value"`