Statistics Summary Empty in Live Mode

[AlexCatarino]

Expected Behavior

Be able to retrieve Statistics.Summary as soon as possible.

Actual Behavior

Statistics.Summary is empty in live mode (at least on deployment day)

Potential Solution

It appears that LEAN doesn't generate statistics because it hasn't sampled the benchmark yet:

charts.TryGetValue(BenchmarkKey, out var benchmarkChart) &&
benchmarkChart.Series.TryGetValue(BenchmarkKey, out var benchmark)

Lean\Engine\Results\BaseResultsHandler.cs line 859

A potential solution is to sample the benchmark or skip statistics that take it into account.

Reproducing the Problem

Live deployment that logs the summary:

statistics = self.Statistics.Summary
statisticsStr = "\n\t".join([f"{kvp.Key}: {kvp.Value}" for kvp in statistics])

statisticsStr is an empty string.

Checklist

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