diff --git a/ploterific.cabal b/ploterific.cabal
--- a/ploterific.cabal
+++ b/ploterific.cabal
@@ -1,5 +1,5 @@
 name:                ploterific
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            Basic plotting of tabular data for the command line.
 description:         A quick and easy way to plot tabular data from the command line. Meant for quick visualizations, not too customizable.
 homepage:            http://github.com/GregorySchwartz/ploterific#readme
diff --git a/src/Ploterific/Plot/Plot.hs b/src/Ploterific/Plot/Plot.hs
--- a/src/Ploterific/Plot/Plot.hs
+++ b/src/Ploterific/Plot/Plot.hs
@@ -15,6 +15,7 @@
 import Control.Monad.Reader (ReaderT (..), asks, liftIO)
 import Data.Bool (bool)
 import Data.Char (ord)
+import Data.Either (rights)
 import Data.List (foldl')
 import Data.Maybe (fromMaybe)
 import qualified Control.Lens as L
@@ -96,9 +97,12 @@
         . getColMeasurement
         $ x
     textToNumbers x = VL.Numbers
+                    . fmap fst
+                    . rights
                     . fmap ( maybe
-                              (error "Can not parse number in column")
-                              (either error fst . T.double)
+                              ( error
+                              $ "Column not in table: " <> show (getColName x))
+                              T.double
                            . Map.lookup (getColName x)
                            )
     textToString x = VL.Strings . fmap (fromMaybe "" . Map.lookup (getColName x))
diff --git a/src/Ploterific/Program/Options.hs b/src/Ploterific/Program/Options.hs
--- a/src/Ploterific/Program/Options.hs
+++ b/src/Ploterific/Program/Options.hs
@@ -26,7 +26,6 @@
               , output :: Maybe String <?> "([STDOUT] | PATH) HTML output path."
               , feature :: [String] <?> "(COLUMN) A list of columns to use in the plot in the format --feature col1 --feature col2 etc. for axes X, Y, etc. To force a measurement, add `:` followed by `N`, `O`, `Q`, or `T` for nominal, ordinal, quantitiative, or temporal measurements, respectively. Full list of measurements located at https://vega.github.io/vega-lite/docs/type.html."
               , color :: Maybe String <?> "(NOTHING | COLUMN) The column containing a feature to use for colors. Add measurement according to --feature if needed."
-              , measurement :: [String] <?> "(Nothing | MEASUREMENT) Specify the level of measurement for each --feature in order. For instance, --feature col1 --feature col2 --measurement quantitative --measurement nominal. "
               , mark :: String <?> "(MARK) The mark type for the plot. Common types are Circle, Bar, Boxplot, and Line. See https://hackage.haskell.org/package/hvega-0.11.0.1/docs/Graphics-Vega-VegaLite.html#t:Mark for a list."
               , delimiter :: Maybe Char <?> "([,] | CHAR) The delimiter for the table."
               , height :: Maybe Double <?> "(Nothing | DOUBLE) The height of the plot."