I am very new to the field of microarrays and need help sorting through data. I have a dataset that was produced on an Agilent 4x44K two color array that has already been normalized with LOWESS to obtain M and A values. However, half of the samples have M/A values, and the other half have maM/maA values. I am unfamiliar with this- does anyone know how the maM/maA values are calculated or why? I was hoping there was a way to back-calculate these values so that the dataset is uniform with only M and A values instead.
Thanks so much for your help everyone!