[R] (no subject)

[bob jackson]

hi, 
I'm working on a research project where we're looking at the changing resonances in femur bones during hip replacement operations. basically, I've got a spreadsheet with one column listing frequencies in 5Hz bands and 3 columns showing the amplitude of that frequency when the bone is loose, medium to tight (referring to the tension of the reamer/chisel creating a cavity for the hip replacement). 
I'm coming at this more from a sound perspective so I would really appreciate some advice from anyone with a handle on stats, could correlograms be used in presenting this data? When working with a large number of bone samples, can anyone recommend a good method of recognizing and mapping these changes?
All the best, 
Bob