diff --git a/dataframe.js b/dataframe.js
index 27bfdcf..f9e1163 100644
--- a/dataframe.js
+++ b/dataframe.js
@@ -1,6 +1,5 @@
 /* an attempt to wrap dataframe access in an abstract
  interface that should work for other data too (?)
- note: test on array-of-records data!
  */
 var dataframe = {
     cols: function(data) {
diff --git a/dcplot.js b/dcplot.js
index 9061023..7626cba 100644
--- a/dcplot.js
+++ b/dcplot.js
@@ -435,7 +435,8 @@ function dcplot(frame, groupname, definition) {
         // abstract this into a plugin - this is RCloud-specific (rserve.js)
         function get_levels(dim) {
             var levels = null;
-            if(_.isFunction(dim)) levels = dim.attrs.r_attributes.levels;
+            if(_.isFunction(dim))
+                levels = dim.attrs.r_attributes.levels;
             else if(_.has(dims, dim) && mhas(accessor(dims[dim]), 'attrs', 'r_attributes', 'levels'))
                 levels = accessor(dims[dim]).attrs.r_attributes.levels;
             return levels;
@@ -816,7 +817,7 @@ function dcplot(frame, groupname, definition) {
                 if(_.has(defn, 'wedge'))
                     chart.keyAccessor(key_value(defn.wedge));
                 if(_.has(defn, 'size'))
-                    chart.keyAccessor(key_value(defn.size));
+                    chart.valueAccessor(key_value(defn.size));
 
                 if(_.has(defn, 'radius'))
                     chart.radius(defn.radius);