removed duplicate data definition
@@ -336,10 +336,6 @@ The width of the bars are set using ``mark_bar(size=30)`` and the width of the c
An example using the second mechanism (using ``rangeStep``):
.. altair-plot::
- import altair as alt
- import pandas as pd
-
- data = pd.DataFrame({'name': ['a', 'b'], 'value': [4, 10]})
alt.Chart(data).mark_bar(size=30).encode(
alt.X('name:N', scale=alt.Scale(rangeStep=100)),
