The documentation on Analytic Accounting seems to suggest one can make reports based on the analytic chart of accounts, but I cannot find this option anywhere in the menu.
https://www.odoo.com/documentation/user/9.0/accounting/others/analytic/usage.html
I have the option indicated in the previous response in my Odoo instance, yes. If you don't have it perhaps you don't have the analytic accounting app installed? I assume the free online version is still the enterprise edition? I don't think these reports are included in the community edition.