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+--- Thread: Histogram help (/thread-6398.html)
Histogram help - dandatadan - Nov-20-2017
I want to group the categorical variable values (Materials) from an attribute (arr1) and plot against their corresponding numerical totals? (first the totals in 'arr2' & then in 'arr3')
data = pd.read_csv('Luton1516_DD.csv')
numpyArray = data.as_matrix(["Material", "DD_ComingledTonnes","DD_SegregatedTonnes"])
arr1 = numpyArray[:,0]
arr2 = numpyArray[:,1]
arr3 = numpyArray[:,2]
df1 = pd.DataFrame({'A': arr2,'group': arr1})
df1.pivot(columns='group', values='A').plot.hist(stacked=True)Can anyone offer help with this?
RE: Histogram help - heiner55 - Nov-25-2017
It is difficult to help, without some lines from Luton.csv