Prediction Model Pooling, Selection and Performance Evaluation Across Multiply Imputed Datasets

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Documentation for package ‘psfmi’ version 1.4.0

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anderson Data from a placebo-controlled RCT with leukemia patients
aortadis Dataset of patients with a aortadissection
bmd Data of a non-experimental study in more than 300 elderly women
bw_single Predictor selection function for backward selection of Linear and Logistic regression models.
chlrform Data about concentration of ß2-microglobuline in urine as indicator for possible damage to the kidney
chol_long Long dataset of persons from the The Amsterdam Growth and Health Longitudinal Study (AGHLS)
chol_wide Wide dataset of persons from the The Amsterdam Growth and Health Longitudinal Study (AGHLS)
coxph_bw Predictor selection function for backward selection of Cox regression models in single complete dataset.
coxph_fw Predictor selection function for forward selection of Cox regression models in single complete dataset.
day2_dataset4_mi Dataset of low back pain patients with missing values
glm_bw Function for backward selection of Linear and Logistic regression models.
glm_fw Function for forward selection of Linear and Logistic regression models.
hipstudy Dataset of elderly patients with a hip fracture
hipstudy_external External Dataset of elderly patients with a hip fracture
hoorn_basic Dataset of the Hoorn Study
hoslem_test Calculates the Hosmer and Lemeshow goodness of fit test.
infarct Data of a patient-control study regarding the relationship between MI and smoking
ipdna_md Example dataset for the psfmi_mm function
km_estimates Kaplan-Meier risk estimates for Net Reclassification Index analysis
km_fit Kaplan-Meier (KM) estimate at specific time point
lbpmicox Example dataset for psfmi_coxr function
lbpmilr Example dataset for psfmi_lr function
lbpmilr_dev Example dataset for mivalext_lr function
lbpmi_extval Example dataset of Low Back Pain Patients for external validation
lbp_orig Example dataset for psfmi_perform function, method boot_MI
lungvolume Data of the development of lung and heartvolume of unborn babies
mammaca Data of a study among women with breast cancer
men Data of 613 patients with meningitis
mivalext_lr External Validation of logistic prediction models in multiply imputed datasets
nri_cox Net Reclassification Index for Cox Regression Models
nri_est Calculation of Net Reclassification Index measures
pool_auc Calculates the pooled C-statistic (Area Under the ROC Curve) across Multiply Imputed datasets
pool_compare_models Compare the fit and performance of prediction models across Multipy Imputed data
pool_D2 Combines the Chi Square statistics across Multiply Imputed datasets
pool_D4 Pools the Likelihood Ratio tests across Multiply Imputed datasets ( method D4)
pool_intadj Provides pooled adjusted intercept after shrinkage of pooled coefficients in multiply imputed datasets
pool_performance Pooling performance measures across multiply imputed datasets
pool_reclassification Function to pool NRI measures over Multiply Imputed datasets
pool_RR Function to combine estimates by using Rubin's Rules
psfmi_coxr Pooling and Predictor selection function for backward or forward selection of Cox regression models across multiply imputed data.
psfmi_lm Pooling and Predictor selection function for backward or forward selection of Linear regression models across multiply imputed data.
psfmi_lr Pooling and Predictor selection function for backward or forward selection of Logistic regression models across multiply imputed data.
psfmi_mm Pooling and Predictor selection function for multilevel models in multiply imputed datasets
psfmi_mm_multiparm Multiparameter pooling methods called by psfmi_mm
psfmi_perform Internal validation and performance of logistic prediction models across Multiply Imputed datasets
psfmi_stab Function to evaluate bootstrap predictor and model stability in multiply imputed datasets.
psfmi_validate Internal validation and performance of logistic prediction models across Multiply Imputed datasets
risk_coxph Risk calculation at specific time point for Cox model
rsq_nagel Nagelkerke's R-square calculation for logistic regression / glm models
rsq_surv R-square calculation for Cox regression models
sbp_age Dataset with blood pressure measurements
sbp_qas Dataset with blood pressure measurements
scaled_brier Calculates the scaled Brier score
smoking Survival data about smoking
stab_single Function to evaluate bootstrap predictor and model stability.
weight Dataset of persons from the The Amsterdam Growth and Health Longitudinal Study (AGHLS)