The Income Fund of America, Class R-4 Shares (ticker: RIDEX) is a mutual fund that focuses on generating income for its investors. It invests in a diverse portfolio of fixed-income securities, such as bonds and money market instruments, as well as dividend-paying stocks. This fund is designed for investors seeking a steady stream of income, with a moderate level of risk. The Class R-4 shares are a specific class of shares within the fund, typically offered to retirement plans and other institutional investors. With a focus on income generation, RIDEX may be a suitable option for those looking for a stable and potentially higher yield investment.