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Using the vennLasso Package23 hours ago
vennLasso Intro | Model Setup | Borrowing Strength Across Subpopulations via Hierarchical Importance | Loss Function for Hierarchical Selection | Installation | An Example with Simulated Data | Cross Validation for Tuning Parameter Selection | Confidence Intervals Using the Adaptive Lasso | References
Augmented (Doubly-Robust) Estimation5 days ago
Overview | $$\hat\tau_ | Basic usage | How it works with cross-fitting | Simulation comparison | User-supplied outcome predictions | When to use augmentation | References
Cross-Fitting for Debiased Kernel Estimation5 days ago
The overfitting problem | Cross-fitting details | K-fold cross-fitting | The role of leaf size | Practical usage | Choosing the number of folds | References
Getting Started with forestBalance5 days ago
Overview | Setup | Simulating data | Estimating the ATE | Forest balance | Entropy balancing (WeightIt) | Energy balancing (WeightIt) | Comparison | Covariate balance | Simulation study | Step-by-step interface
Performance and Scalability5 days ago
Overview | Mathematical background | The kernel energy balancing system | The kernel factorization | Direct solver (block Cholesky) | CG solver (matrix-free) | Block Jacobi preconditioned CG | Solver comparison | End-to-end timing | Scaling with number of trees | Pipeline stage breakdown | Memory usage | Summary
Benchmark Study for 'fastglm'7 days ago
Standard GLMs | Sparse and big.matrix paths | Negative-binomial regression | Firth bias-reduced GLMs | Firth across all decomposition methods | Firth on sparse and streaming designs | Hurdle models | Zero-inflated models | Summary | Ordinal models | References
Firth Bias-Reduced GLMs with 'fastglm'8 days ago
Logistic regression under separation | General GLM families | Binomial (logit, probit, cloglog) | Poisson (log, sqrt) | Gamma (log, inverse) | Gaussian (identity, log) | Inverse Gaussian (log) | Standard errors | Assessing convergence | Adjusted scores and penalized likelihood | Profile intervals and tests for logistic regression | Speed comparison across families | References
Large-data estimation and inference with fastglm8 days ago
Sparse and mapped matrices | Preserving a model across chunks | A more stable solve for related predictors | Bias reduction with repeated block reads | Prediction and robust inference | Ordered outcomes from repeatable blocks | Robust covariance for ordered outcomes | Assessment and testing without collecting the observations | Parquet and database sources | Count and two-part models from the same readers
Ordered outcomes and cumulative-link models with fastglm8 days ago
Ordinal functionality at a glance | Models and estimation | Inference, assessment, and computation | Models and estimation | Common slopes and the cumulative-logit model | Housing satisfaction: fitting and interpretation | Alternative cumulative links | Partial proportional odds and nonparallel effects | The range of valid predictions | Mean bias reduction with varying effects | Prediction and effect summaries | Continuous predictors and local changes | Hypothesis tests and uncertainty | Coefficient profiles and score tests | Comparing common and varying effects | Robust covariance and bootstrap uncertainty | Model assessment | Residuals and reporting | Prediction scores, calibration, and graphical slope comparisons | Testing the common-slope restriction | Separation and a bias-reduced null | Repeated fits and large-data computation | Simulating responses from a fitted model | Prepared designs and repeated outcomes | Streaming from repeatable sources | Assessment and common-slope tests on the original source | Numerical computation and likelihood conventions | Locating small probabilities and predictor gaps | Missing intermediate categories within a predictor pattern | Category support and limits of inference
Quick Usage Guide to the 'fastglm' Package8 days ago
Example | Computational stability
Negative Binomial Convergence: fastglm vs MASS8 days ago
Data-generating process | Convergence comparison | Summary | Log-likelihood comparison | Theta estimates | Cases where only fastglm converges
Count regression, truncation, and excess zeros with fastglm8 days ago
Negative-binomial variation | Positive counts and hurdle models | Zero-inflated counts | Testing associations within and across components | Larger datasets and common model specifications | Uncertainty for average counts
Negative Binomial Stability Benchmark: fastglm vs MASS8 days ago
Data-generating process | Scoring convergence | Running the benchmark | Results | References
Models, inference, and computation with fastglm10 days ago
Package scope and model selection | Models and estimation | Inference, prediction, and assessment | Data size and repeated fitting | Specifying the mean model | Choosing a decomposition | Inference and population averages | Joint coefficient tests | Repeated outcomes on a shared design
Two-part models for nonnegative continuous outcomes11 days ago
Fitting and interpreting the components | Marginal predictions | Comparing average outcomes | Reading large outcome datasets in blocks
Stagewise Variable Selection for Joint Semi-Competing Risk Models4 months ago
Overview | 1. Statistical Background | 1.1 Semi-Competing Risks | 1.2 Joint Frailty Model (JFM) | 1.3 Joint Scale-Change Model (JSCM) | 1.4 Stagewise Variable Selection | 1.5 Cross-Validation | 2. Installation | 3. Data Format | 4. Simulating Data | 4.1 Joint Frailty Model data | 4.2 Joint Scale-Change Model data | 5. Joint Frailty Model (JFM) Workflow | 5.1 Fit the Stagewise Regularization Path | 5.2 Explore the Regularization Path | 5.3 Plot the Coefficient Path | 5.4 Cross-Validation | 5.5 Plot the CV Results | 5.6 Extract Coefficients and Summarize | 5.7 Baseline Hazard | 5.8 Survival Prediction | 6. Other Penalty Types (JFM) | 6.1 Lasso | 6.2 Group Lasso | 6.3 Comparing Penalties | 7. Joint Scale-Change Model (JSCM) Workflow | 7.1 Fit the Stagewise Path | 7.2 Cross-Validation | 7.3 Results | 7.4 Baseline Hazard (JSCM) | 7.5 Survival Prediction and AFT Interpretation | 8. Interpreting Output | 8.1 Alpha and Beta Conventions | 8.2 Cooperative Lasso and Variable Grouping | 8.3 Survival Curve Interpretation | 9. Default Parameters | 10. Model Evaluation | 10.1 Coefficient Recovery | 10.2 Time-Varying AUC | 11. References
Using the jcolors Package3 years ago
jcolors intro | Installation | Display all available palettes | Discrete palettes | Continuous palettes | Discrete Color Palettes | Use with ggplot2 | default | More example plots | Continuous Color Palettes | Display all continuous palettes
Usage of the oem Package4 years ago
Introduction | Installation | Quick Start | Key Features | Available functions | Available Penalties | Available Model Families | Fitting multiple penalties at once | Timing Comparison | Linear Regression | Logistic Regression | Cross Validation | Extremely Fast Cross Validation for Linear Models | Evaluation Metrics | Misclassification Rate | Area Under the ROC Curve | Methods for Very Large Scale Problems | OEM with Precomputed $X^TX$, $X^TY$ for Linear Models | Out-of-memory Computation | Other Features | Parallelization via OpenMP | Penalty Adjustment | More Information | References
Estimation of Flexible ITRs with xgboost4 years ago
First simulate data with complicated conditional average treatment effect/benefit score | Setup | Using xgboost for estimation of ITRs | Comparing performance with linear ITRs
Usage of the Personalized Package4 years ago
Introduction to personalized | Choice of $M$ function | Choice of $f$ | Variable Selection | Extension to multi-category treatments | Quick Usage Reference | Creating and Checking Propensity Score Model | Fitting Subgroup Identification Models | Evaluating Treatment Effects within Estimated Subgroups | User Guide | Overview | Creating and Checking a propensity Score Model | Observational Studies | Randomized Controlled Trials | Explanation of Major Function Arguments | x | y | trt | propensity.func | loss | method | larger.outcome.better | cutpoint | retcall | ... | Continuous Outcomes | Binary Outcomes | Count Outcomes | Time-to-event Outcomes | Efficiency Augmentation | Plotting Fitted Models | Comparing Subgroups from a Fitted Model | Validating Subgroup Identification Models | Repeated Training/Test Splitting | Bootstrap Bias Correction | Plotting Validated Models
Utilities for Improving Estimation Efficiency via Augmentation and for Propensity Score Estimation4 years ago
Efficiency augmentation | Propensity score utilities | Augmentation utilities | Comparing performance with augmentation
Multi-category Treatments with personalized4 years ago
Example with multi-category treatments | More details on propensity scores for multi-category treatments