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import pandas as pd
from bokeh._legacy_charts import HeatMap, output_notebook, show
from bokeh.palettes import Blues9 as palette
palette = palette[::-1]
from bokeh.sampledata.unemployment1948 import data


    

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output_notebook()


    

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df = data[data.columns[:-1]]
df2 = df.set_index(df[df.columns[0]].astype(str))
df2.drop(df.columns[0], axis=1, inplace=True)
df3 = df2.transpose()


    

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hm = HeatMap(
    df3, palette=palette, xlabel='Years since 1948', ylabel='Months', 
    title="Unemployment, pandas input", height=400, width=1000)
show(hm)


    

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hm_data = df3.values.T
hm = HeatMap(
    hm_data, palette=palette, xlabel='Years since 1948', ylabel='Months', 
    title="Unemployment, array input", height=400, width=1000)
show(hm)


    

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simple_df = pd.DataFrame(
    {'apples':[4,5,8,12,4], 'pears':[6,5,4,8,7], 'bananas':[1,2,4,8,12]}, 
    index=['2009', '2010', '2011', '2012', '2013']
)
hm = HeatMap(
    simple_df, palette=palette, title="Fruit comsumption per year", height=300, width=500)
show(hm)


    

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try:
    from blaze import Data
    simple_b = Data(simple_df)
    hm = HeatMap(simple_b, palette=palette, title="Fruit comsumption per year", notebook=True, height=400, width=1000)
    show(hm)
except ImportError:
    # seems that blaze is not installed
    pass


    

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