diff --git a/misc.R b/misc.R
index 5d016e3..b0b765d 100644
--- a/misc.R
+++ b/misc.R
@@ -7,14 +7,31 @@ library(plotly)
 library(forcats)
 library(markdown)
 
-uniq <- function(df, ...)
+uniq <- function(df, ..., first = F)
 {
+  uniq_vector <- function(x, fst)
+  {
+    x %>%
+      c %>%
+      rle %>%
+      .$lengths ->
+    l
+
+    if (fst)
+    {
+      l %>%
+        cumsum %>%
+        `-`(l) + 1
+    } else
+    {
+      l %>% cumsum
+    }
+  }
+
   eval(substitute(alist(...))) %>%
     map_chr(as.character) %>%
     intersect(names(df)) %>%
-    map(~rle(df[[.x]] %>% c) %>%
-            .$lengths %>%
-            cumsum) %>%
+    map(~uniq_vector(df[[.x]], first)) %>%
     reduce(union) %>%
     sort -> columns