Reference and Function Lookup

Task-based routing for finding the right np, npRmpi, and crs functions and the best first page for each workflow.
Keywords

npreg, npudens, npqreg, npRmpi.init, crs, crssigtest, reference

This page is not meant to replace the package help system. It is here to help you find the right family of functions quickly, after which the package help pages and examples should do the rest.

The fastest route to authoritative help

  • In R, type ?npreg, ?npudens, ?crs, and so forth.
  • In RStudio, click the package name in the Packages pane, then select the function help page you want.
  • Use the site search box if you know the function name but not which page mentions it.

Fast routing by function family

Use this table when you already know roughly what you want to do, but not which page or script should be your first stop.

Task Functions Best first page Working code route
Kernel regression npreg, npregbw, npplot Kernel Primer Quickstarts
Unconditional density and distribution npudens, npudensbw, npudist Density, Distribution, Quantiles Quickstarts
Conditional density and distribution npcdens, npcdensbw, npcdist Density, Distribution, Quantiles Quickstarts
Quantile regression npqreg, npcdistbw Density, Distribution, Quantiles Quickstarts
Semiparametric models npplreg, npplregbw, npindex, npindexbw, npscoef, npscoefbw Semiparametric Models Quickstarts
Mode estimation and classification npconmode Classification and Modes Quickstarts
Plotting, gradients, and intervals plot, predict, npplot Plotting and Intervals Quickstarts
Model specification and significance tests npcmstest, npsigtest Significance and Specification Quickstarts
Entropy, equality, symmetry, and dependence tests npdeneqtest, npunitest, npsymtest, npdeptest, npsdeptest Entropy and Testing Quickstarts
Kernel sums and lower-level customization npksum Build With npksum Code Catalog
MPI versions of familiar np workflows npRmpi.init, npreg, npregbw, other np* calls under autodispatch MPI and Large Data Quickstarts
Regression splines crs Splines Quickstarts
Spline significance testing crssigtest Splines Spline Primer
Instrumental regression splines crsiv, crsivderiv Splines Code Catalog
Generalized local polynomial regression npglpreg Worked Examples Code Catalog

np and npRmpi function families

Task Functions
Kernel regression npreg, npregbw, npplot
Unconditional density and distribution npudens, npudensbw, npudist
Conditional density and distribution npcdens, npcdensbw, npcdist
Quantile regression npqreg, npqcmstest
Semiparametric models npplreg, npplregbw, npindex, npindexbw, npscoef, npscoefbw
Mode estimation npconmode
Copulas npcopula
Model specification and significance tests npcmstest, npsigtest, npdeneqtest, npunitest, npsymtest, npsdeptest, npdeptest
Instrumental methods npregiv, npregivderiv
Kernel sums and lower-level support npksum

crs function families

Task Functions
Regression splines crs
Spline significance testing crssigtest
Instrumental regression splines crsiv, crsivderiv
Generalized local polynomial regression npglpreg
Supporting utilities gsl.bs, snomadr

Common datasets worth remembering

Use these when you want quick, reproducible examples without hunting for external data.

Dataset Typical use on this site
cps71 first regression fits with npreg
faithful unconditional density and distribution examples
Italy conditional density, distribution, and quantiles
wage1 interactive and multivariate regression illustrations
oecdpanel larger-panel style workflows

Datasets that are often useful when learning

  • cps71
  • Engel95
  • wage1
  • Italy
  • oecdpanel

External package documentation

Back to top