update documentation

.Rbuildignore

@@ -8,3 +8,5 @@ vignettes/Cigar.csv
 inst/standarderrors.pdf
 /figure
 /cache
+/inst/doc/*.log
+/inst/doc/*.Rmd

.gitignore

@@ -1,2 +1,3 @@
 README.html
 inst/standarderrors.pdf
+inst/doc/*.log

DESCRIPTION

@@ -2,9 +2,9 @@ Package: margins
 Type: Package
 Title: Marginal Effects for Model Objects
 Description: An R port of Stata's 'margins' command, which can be used to
-    calculate marginal effects or partial effects from model objects.
+    calculate marginal (or partial) effects from model objects.
 License: MIT + file LICENSE
-Version: 0.1.25
+Version: 0.2.0
 Date: 2016-08-05
 Authors@R: c(person("Thomas J.", "Leeper",
                     role = c("aut", "cre"),

README.Rmd

@@ -33,24 +33,6 @@ Given the challenges of interpreting the contribution of a given regressor in an
 
 Some technical details of the package are worth briefly noting. The estimation of marginal effects relies on numeric derivatives produced using `predict()` and [`numDeriv::grad()`](https://cran.r-project.org/package=numDeriv). While symbolic differentiation of some models (e.g., linear models) is possible using `D()` and `deriv()`, R's modelling language (the "formula" class) is sufficiently general to enable the construction of model formulae that contain terms that fall outside of R's symbolic differentiation rule table (e.g., `y ~ factor(x)` or `y ~ I(FUN(x))` for any arbitrary `FUN()`). By relying on numeric differentiation, `margins()` supports *any* model that can be expressed in R formula syntax. Even Stata's `margins` command is limited in its ability to handle variable transformations (e.g., including `x` and `log(x)` as predictors) and quadratic terms (e.g., `x^3`); these scenarios are easily expressed in an R formula and easily handled, correctly, by `margins()`.
 
-## Requirements and Installation ##
-
-[![CRAN](http://www.r-pkg.org/badges/version/slopegraph)](http://cran.r-project.org/web/packages/margins/index.html)
-[![Build Status](https://travis-ci.org/leeper/margins.svg?branch=master)](https://travis-ci.org/leeper/margins)
-[![Build status](https://ci.appveyor.com/api/projects/status/t6nxndmvvcw3gw7f/branch/master?svg=true)](https://ci.appveyor.com/project/leeper/margins/branch/master)
-[![codecov.io](http://codecov.io/github/leeper/margins/coverage.svg?branch=master)](http://codecov.io/github/leeper/margins?branch=master)
-[![Project Status: Wip - Initial development is in progress, but there has not yet been a stable, usable release suitable for the public.](http://www.repostatus.org/badges/latest/wip.svg)](http://www.repostatus.org/#wip)
-
-The development version of this package can be installed directly from GitHub using `devtools`:
-
-```R
-if (!require("ghit")) {
-    install.packages("ghit")
-    library("ghit")
-}
-install_github("leeper/margins")
-```
-
 ## Simple code examples ##
 
 ```{r opts, echo = FALSE}
@@ -105,3 +87,21 @@ persp(x, xvar = "cyl", yvar = "wt", what = "effect", nx = 10)
 
 The numerous package vignettes and help files contain extensive documentation and examples of all package functionality.
 
+## Requirements and Installation ##
+
+[![CRAN](http://www.r-pkg.org/badges/version/slopegraph)](http://cran.r-project.org/web/packages/margins/index.html)
+[![Build Status](https://travis-ci.org/leeper/margins.svg?branch=master)](https://travis-ci.org/leeper/margins)
+[![Build status](https://ci.appveyor.com/api/projects/status/t6nxndmvvcw3gw7f/branch/master?svg=true)](https://ci.appveyor.com/project/leeper/margins/branch/master)
+[![codecov.io](http://codecov.io/github/leeper/margins/coverage.svg?branch=master)](http://codecov.io/github/leeper/margins?branch=master)
+[![Project Status: Wip - Initial development is in progress, but there has not yet been a stable, usable release suitable for the public.](http://www.repostatus.org/badges/latest/wip.svg)](http://www.repostatus.org/#wip)
+
+The development version of this package can be installed directly from GitHub using `devtools`:
+
+```R
+if (!require("ghit")) {
+    install.packages("ghit")
+    library("ghit")
+}
+install_github("leeper/margins", build_vignettes = FALSE)
+```
+

README.md

@@ -33,24 +33,6 @@ Given the challenges of interpreting the contribution of a given regressor in an
 
 Some technical details of the package are worth briefly noting. The estimation of marginal effects relies on numeric derivatives produced using `predict()` and [`numDeriv::grad()`](https://cran.r-project.org/package=numDeriv). While symbolic differentiation of some models (e.g., linear models) is possible using `D()` and `deriv()`, R's modelling language (the "formula" class) is sufficiently general to enable the construction of model formulae that contain terms that fall outside of R's symbolic differentiation rule table (e.g., `y ~ factor(x)` or `y ~ I(FUN(x))` for any arbitrary `FUN()`). By relying on numeric differentiation, `margins()` supports *any* model that can be expressed in R formula syntax. Even Stata's `margins` command is limited in its ability to handle variable transformations (e.g., including `x` and `log(x)` as predictors) and quadratic terms (e.g., `x^3`); these scenarios are easily expressed in an R formula and easily handled, correctly, by `margins()`.
 
-## Requirements and Installation ##
-
-[![CRAN](http://www.r-pkg.org/badges/version/slopegraph)](http://cran.r-project.org/web/packages/margins/index.html)
-[![Build Status](https://travis-ci.org/leeper/margins.svg?branch=master)](https://travis-ci.org/leeper/margins)
-[![Build status](https://ci.appveyor.com/api/projects/status/t6nxndmvvcw3gw7f/branch/master?svg=true)](https://ci.appveyor.com/project/leeper/margins/branch/master)
-[![codecov.io](http://codecov.io/github/leeper/margins/coverage.svg?branch=master)](http://codecov.io/github/leeper/margins?branch=master)
-[![Project Status: Wip - Initial development is in progress, but there has not yet been a stable, usable release suitable for the public.](http://www.repostatus.org/badges/latest/wip.svg)](http://www.repostatus.org/#wip)
-
-The development version of this package can be installed directly from GitHub using `devtools`:
-
-```R
-if (!require("ghit")) {
-    install.packages("ghit")
-    library("ghit")
-}
-install_github("leeper/margins")
-```
-
 ## Simple code examples ##
 
 
@@ -132,3 +114,21 @@ persp(x, xvar = "cyl", yvar = "wt", what = "effect", nx = 10)
 
 The numerous package vignettes and help files contain extensive documentation and examples of all package functionality.
 
+## Requirements and Installation ##
+
+[![CRAN](http://www.r-pkg.org/badges/version/slopegraph)](http://cran.r-project.org/web/packages/margins/index.html)
+[![Build Status](https://travis-ci.org/leeper/margins.svg?branch=master)](https://travis-ci.org/leeper/margins)
+[![Build status](https://ci.appveyor.com/api/projects/status/t6nxndmvvcw3gw7f/branch/master?svg=true)](https://ci.appveyor.com/project/leeper/margins/branch/master)
+[![codecov.io](http://codecov.io/github/leeper/margins/coverage.svg?branch=master)](http://codecov.io/github/leeper/margins?branch=master)
+[![Project Status: Wip - Initial development is in progress, but there has not yet been a stable, usable release suitable for the public.](http://www.repostatus.org/badges/latest/wip.svg)](http://www.repostatus.org/#wip)
+
+The development version of this package can be installed directly from GitHub using `devtools`:
+
+```R
+if (!require("ghit")) {
+    install.packages("ghit")
+    library("ghit")
+}
+install_github("leeper/margins", build_vignettes = FALSE)
+```
+