contract/account_analytic_analysis_recurring/account_analytic_analysis_recurring_cron.xml

<?xml version="1.0" encoding='UTF-8'?>
<openerp>
    <data>

        <record model="ir.cron" id="account_analytic_cron_for_invoice">
           <field name="name">Generate Recurring Invoices from Contracts</field>
           <field name="interval_number">1</field>
           <field name="interval_type">days</field>
           <field name="numbercall">-1</field>
           <field name="model" eval="'account.analytic.account'"/>
           <field name="function" eval="'recurring_create_invoice'"/>
           <field name="args" eval="'()'"/>
        </record>

    </data>
</openerp>