frombasic_unitsimportcm,inchimportmatplotlib.pyplotaspltimportnumpyasnpN=5tea_means=[15*cm,10*cm,8*cm,12*cm,5*cm]tea_std=[2*cm,1*cm,1*cm,4*cm,2*cm]fig,ax=plt.subplots()ax.yaxis.set_units(inch)ind=np.arange(N)# the x locations for the groupswidth=0.35# the width of the barsax.bar(ind,tea_means,width,bottom=0*cm,yerr=tea_std,label='Tea')coffee_means=(14*cm,19*cm,7*cm,5*cm,10*cm)coffee_std=(3*cm,5*cm,2*cm,1*cm,2*cm)ax.bar(ind+width,coffee_means,width,bottom=0*cm,yerr=coffee_std,label='Coffee')ax.set_title('Cup height by group and beverage choice')ax.set_xticks(ind+width/2,labels=['G1','G2','G3','G4','G5'])ax.legend()ax.autoscale_view()plt.show()

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