"""
Seattle Weather Heatmap
-----------------------
This example shows the 2010 daily high temperature (F) in Seattle, WA.
"""
# category: case studies
import altair as alt
from vega_datasets import data

# Since the data is more than 5,000 rows we'll import it from a URL
source = data.seattle_temps.url

alt.Chart(
    source,
    title="2010 Daily High Temperature (F) in Seattle, WA"
).mark_rect().encode(
    x='date(date):O',
    y='month(date):O',
    color=alt.Color('max(temp):Q', scale=alt.Scale(scheme="inferno")),
    tooltip=[
        alt.Tooltip('monthdate(date):T', title='Date'),
        alt.Tooltip('max(temp):Q', title='Max Temp')
    ]
).properties(width=550)