[R] Suppression anova message

Dear all, I am running anova(lm()) on a series of different data frame and I am getting the following message Using dataFrame$levels as id variables 1. Why am I getting that message 2. How do I suppress it (or correct it). Thanks Marco -- Marco Blanchette, Ph.D. Assistant Investigator S

[R] Suppression anova message

Dear all, I am running anova(lm()) on a series of different data frame and I am getting the following message Using dataFrame$levels as id variables 1. Why am I getting that message 2. How do I suppress it (or correct it). Thanks Marco -- Marco Blanchette, Ph.D. Assistant Investigator S