Problem with overlapping bars in a plot with 2 y axis.

I am trying to plot a bar chart with 2 y-axes in MATLAB. The 2-axes feature works, however, the bars are overlapping. Also, the categories on the right-hand axis should have different colors, not the same red. How can this be done? Also, how can I label both y axes? Here is the code I am using:

C1=[0.9;0.89;0.65;0.05;0.01;0.01]

C2=[7.76 9.42;7.7 9.14;8.4 6.3;8.5 6;9.6 7.1;9.5 7.15]

yyaxis left

bar(C1)

ylim([0 1.1])

yyaxis right

bar(C2);

ylim([0 12])

set(gca,'XTickLabel',{'0.013 g','0.13 g','0.27 g','0.67 g','1.30 g','2.7 g'},'FontWeight','bold')

legend('Nitrate removal','pH','DO','FontWeight','bold')

ylabel('pH/DO','FontWeight','bold')

xlabel('Amount of NPs (g)','FontWeight','bold')

Answer 1

[dpb]

Answers/325849 bar graph with two yaxes Illustrates how to solve this...it's a pain TMW hasn't built a routine for such already; it's an obvious shortcoming.