adding appveyor support

.Rbuildignore

@@ -4,3 +4,4 @@
 ^README\.Rmd$
 ^README-.*\.png$
 cran-comment
+^appveyor\.yml$

README.Rmd

@@ -16,6 +16,7 @@ knitr::opts_chunk$set(
 
 [![CRAN_Status_Badge](http://www.r-pkg.org/badges/version/NPflow)](https://cran.r-project.org/package=NPflow)
 [![Travis-CI Build Status](https://travis-ci.org/borishejblum/NPflow.svg?branch=CRANrelease)](https://travis-ci.org/borishejblum/NPflow)
+[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/borishejblum/NPflow?branch=master&svg=true)](https://ci.appveyor.com/project/borishejblum/NPflow)
 [![Downloads](https://cranlogs.r-pkg.org/badges/NPflow?color=blue)](https://www.r-pkg.org/pkg/NPflow)
 
 

README.md

@@ -3,7 +3,7 @@
 `NPflow`
 ========
 
-[![CRAN\_Status\_Badge](http://www.r-pkg.org/badges/version/NPflow)](https://cran.r-project.org/package=NPflow) [![Travis-CI Build Status](https://travis-ci.org/borishejblum/NPflow.svg?branch=CRANrelease)](https://travis-ci.org/borishejblum/NPflow) [![Downloads](https://cranlogs.r-pkg.org/badges/NPflow?color=blue)](https://www.r-pkg.org/pkg/NPflow)
+[![CRAN\_Status\_Badge](http://www.r-pkg.org/badges/version/NPflow)](https://cran.r-project.org/package=NPflow) [![Travis-CI Build Status](https://travis-ci.org/borishejblum/NPflow.svg?branch=CRANrelease)](https://travis-ci.org/borishejblum/NPflow) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/borishejblum/NPflow?branch=master&svg=true)](https://ci.appveyor.com/project/borishejblum/NPflow) [![Downloads](https://cranlogs.r-pkg.org/badges/NPflow?color=blue)](https://www.r-pkg.org/pkg/NPflow)
 
 Overview
 --------

appveyor.yml

@@ -0,0 +1,57 @@
+# DO NOT CHANGE the "init" and "install" sections below
+
+# Download script file from GitHub
+init:
+  ps: |
+        $ErrorActionPreference = "Stop"
+        Invoke-WebRequest http://raw.github.com/krlmlr/r-appveyor/master/scripts/appveyor-tool.ps1 -OutFile "..\appveyor-tool.ps1"
+        Import-Module '..\appveyor-tool.ps1'
+
+install:
+  ps: Bootstrap
+
+cache:
+  - C:\RLibrary
+
+# Adapt as necessary starting from here
+
+build_script:
+  - travis-tool.sh install_deps
+
+test_script:
+  - travis-tool.sh run_tests
+
+on_failure:
+  - 7z a failure.zip *.Rcheck\*
+  - appveyor PushArtifact failure.zip
+
+environment:
+  global:
+    WARNINGS_ARE_ERRORS: 1
+    _R_CHECK_FORCE_SUGGESTS_: 0
+    R_ARCH: x64
+    USE_RTOOLS: true ## to be able to use Remotes (i.e. packages from non-CRAN sources)
+
+  matrix:
+    - R_VERSION: release
+
+    - R_VERSION: devel
+
+artifacts:
+  - path: '*.Rcheck\**\*.log'
+    name: Logs
+
+  - path: '*.Rcheck\**\*.out'
+    name: Logs
+
+  - path: '*.Rcheck\**\*.fail'
+    name: Logs
+
+  - path: '*.Rcheck\**\*.Rout'
+    name: Logs
+
+  - path: '\*_*.tar.gz'
+    name: Bits
+
+  - path: '\*_*.zip'
+    name: Bits