forestci

At a glance

• Editor score
  3.0 / 10
• Pricing
  Free plan
• Best for
  Python practitioners needing random-forest uncertainty
• Free plan
  Yes
• Paid from
  Free
• Facts checked
  23 Sep 2026

• Where it wins

  • Computes confidence intervals, prediction variance, and error bars
  • Uses jackknife and infinitesimal-jackknife methods
  • Offers calibration and memory-constrained calculation options

• Where it doesn't

  • Focused on random-forest uncertainty rather than broad statistical analysis
  • Requires Python code and fitted scikit-learn forest models
  • Self-hosted library, not a hosted statistical-analysis application

Our verdict on forestci

forestci is an open-source Python module for estimating uncertainty in predictions from scikit-learn random forests. It is aimed at Python practitioners working with fitted RandomForestRegressor or RandomForestClassifier models who need confidence intervals, prediction variance, or error bars. The package exposes these calculations through the random_forest_error API, making its purpose specific: extending forest predictions with uncertainty estimates rather than serving as a general statistical-analysis environment.

Its core methods are jackknife and infinitesimal-jackknife approaches. An optional calibration step can adjust estimates toward an infinite number of trees, while memory-constrained calculation options address workloads where calculation memory matters. The published feature set describes regression and classification forest support, but does not position forestci as a broad modeling suite: it is best suited to users who already work in Python with these estimators and want uncertainty estimates for their outputs. Buyers looking for a wider range of statistical tests or Bayesian analysis should consider a broader statistical package instead.

forestci is open source and has a free plan, so the published pricing model does not describe paid tiers to compare. It is installed with pip and runs as a self-hosted Python library, rather than as a hosted application. Documentation and email are the listed support channels. That setup fits individuals and small or mid-market teams comfortable integrating a Python package into their work; it is a less natural fit for people seeking a point-and-click application or a full statistical platform. Choose forestci when confidence intervals and variance estimates for scikit-learn random forests are the specific need, not when the priority is a broader analysis workflow.

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forestci fact sheet

Alternatives to forestci

• RA free, programmable environment for statistical analysis, modeling, visualization, and data import.9.4
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• IBM SPSS StatisticsA broad desktop statistics suite with testing, modeling, forecasting, reporting, and R/Python integration.9.2

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update