Kotlin DataFrame: typesafe in-memory structured data processing for JVM
C-Rank Grade: A (Welcoming) - 69/100
External PR Merge Rate: 77%
Response Time: -
First Timer Success: 100%
Kotlin/dataframe has a recorded first-timer success rate of 100.0%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in Kotlin/dataframe respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 68.5 places Kotlin/dataframe in the A tier.
The external contributor pull request merge rate for Kotlin/dataframe is 77.2%, based on public PR activity from non-core contributors.
Kotlin/dataframe currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Highly welcoming maintainers in Kotlin/dataframe. Prompt code reviews with positive guidance for new contributors.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/Kotlin/dataframe?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 11:00 UTC (11:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 09:00 to 13:00 UTC (09:00 - 13:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (96% approval). Large PRs (>500 lines) take ~115 hours (35% approval). Keep your diff compact for rapid review.
Follow up of #906 The same as in #906 needs to be done, but for the following aliases as well: AnyCol, AnyColumnReference, AnyColumnGroupAccessor, StringCol, ColumnGroupReference The changes should not include internal usages, and the declarations of the aliases themselves should not be removed. The main idea is to make code completion in the public API cleaner.
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When evaluating whether to contribute to Kotlin/dataframe, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of Kotlin/dataframe acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 77.2% were successfully merged into the primary branch.
Kotlin/dataframe has a recorded first-timer success rate of 100.0%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 68.5 places Kotlin/dataframe in the Welcoming tier.
The external pull request merge rate is 77.2%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, Kotlin/dataframe currently has 1 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for Kotlin/dataframe are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.