Troubleshooting Key Errors in a Quantitative Hyperparameter Search

Summary

This brief support exchange addresses a user’s report that a hyperparameter module raises a key error even though the key appears in the visual chart and can be found in code-mode parameters. The response attributes the issue to an error in the hyperparameter search module’s scoring function and directs the user to consult a template as a reference for correcting that function.

The document offers a practical debugging clue: when a parameter appears to exist but the search workflow still reports a missing key, inspect the scoring function and its expected inputs. However, it does not show the failing code, identify the specific key or exception trace, or explain how the score function should be changed. The linked example is the only suggested follow-up, so the diagnosis cannot be independently verified from the text. This is platform troubleshooting rather than a trading method, and it provides no strategy, market analysis, or performance evidence.

Key ideas

• A reported key error persisted despite the parameter appearing in the chart and code-mode parameter list.
• The response locates the likely problem in the hyperparameter search scoring function.
• A template is offered as a reference, but the document does not describe the required code change.
• The limited report includes no traceback or reproducible example, so the diagnosis remains unverified.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.