From 71fa0091c0f41d95ed8d9ed840c6a657e3a71a3a Mon Sep 17 00:00:00 2001
From: Danielle Callan <dcallan@upenn.edu>
Date: Wed, 29 Nov 2023 23:08:50 -0500
Subject: [PATCH] make sure we always have a data2 var

---
 R/server.R | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/R/server.R b/R/server.R
index 4e0fd8e..46ca2b3 100644
--- a/R/server.R
+++ b/R/server.R
@@ -37,6 +37,8 @@ server <- function(input, output, session) {
       data1 <- readData(file1)
       if (!is.null(file2)) {
         data2 <- readData(file2)
+      } else {
+        data2 <- NULL
       }
 
       lastData1ColIndex <- length(data1)