diff --git a/.gitattributes b/.gitattributes
index bdb0cab..cf42ace 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,6 +1,11 @@
 # Auto detect text files and perform LF normalization
 * text=auto
 
+# Lines added from https://github.com/krlmlr/r-appveyor/blob/master/.gitattributes
+data/* binary
+src/* text=lf
+R/* text=lf
+
 # Custom for Visual Studio
 *.cs     diff=csharp
 
diff --git a/R/RcppExports.R b/R/RcppExports.R
index 5a66f3d..ba3e602 100644
--- a/R/RcppExports.R
+++ b/R/RcppExports.R
@@ -144,6 +144,10 @@ rgraph_ba_new_cpp <- function(m0 = 1L, m = 1L, t = 10L) {
     .Call('netdiffuseR_rgraph_ba_new_cpp', PACKAGE = 'netdiffuseR', m0, m, t)
 }
 
+persistant <- function(graph, i, j, n) {
+    .Call('netdiffuseR_persistant', PACKAGE = 'netdiffuseR', graph, i, j, n)
+}
+
 rgraph_er_cpp <- function(n = 10L, p = 0.3, undirected = TRUE, weighted = FALSE, self = FALSE) {
     .Call('netdiffuseR_rgraph_er_cpp', PACKAGE = 'netdiffuseR', n, p, undirected, weighted, self)
 }
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..7d1c45b
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,41 @@
+# 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
+
+# Adapt as necessary starting from here
+
+build_script:
+  - travis-tool.sh install_deps
+
+test_script:
+  - travis-tool.sh run_tests
+
+on_failure:
+  - travis-tool.sh dump_logs
+
+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
diff --git a/src/RcppExports.cpp b/src/RcppExports.cpp
index 55655e4..1b3180d 100644
--- a/src/RcppExports.cpp
+++ b/src/RcppExports.cpp
@@ -199,6 +199,20 @@ BEGIN_RCPP
     return __result;
 END_RCPP
 }
+// persistant
+double persistant(const List& graph, int i, int j, int n);
+RcppExport SEXP netdiffuseR_persistant(SEXP graphSEXP, SEXP iSEXP, SEXP jSEXP, SEXP nSEXP) {
+BEGIN_RCPP
+    Rcpp::RObject __result;
+    Rcpp::RNGScope __rngScope;
+    Rcpp::traits::input_parameter< const List& >::type graph(graphSEXP);
+    Rcpp::traits::input_parameter< int >::type i(iSEXP);
+    Rcpp::traits::input_parameter< int >::type j(jSEXP);
+    Rcpp::traits::input_parameter< int >::type n(nSEXP);
+    __result = Rcpp::wrap(persistant(graph, i, j, n));
+    return __result;
+END_RCPP
+}
 // rgraph_er_cpp
 arma::sp_mat rgraph_er_cpp(int n, double p, bool undirected, bool weighted, bool self);
 RcppExport SEXP netdiffuseR_rgraph_er_cpp(SEXP nSEXP, SEXP pSEXP, SEXP undirectedSEXP, SEXP weightedSEXP, SEXP selfSEXP) {