Matrix Operations on a big dataset

Hello Matlab Gurus!

I have a big data with 11 columns and thousand of rows.

C1  C2  C3  C4  C5  C6   C7    C8   C9  C10  C11
1  1  1
1  1  1
1  1  2  
1  1  2
1  2  1  
1  2  1  
1  2  2  
1  2  2
2  1  1  
2  1  2

For each unique set of (C1 C2 C3) I need to find a min & a max value from C5 & C11 together, and report their difference. Also, I need to report the values on C4(“SP”) & C8(“FP") corresponding to the min and max (from C5 or C11!).

So the new matrix will look like:

1  1  1  min  diff  SP  FP
1  1  2  min  diff  SP  FP
1  2  1  min  diff  SP  FP
1  2  2  min  diff  SP  FP
2  1  1  min  diff  SP  FP
2  2  1  min  diff  SP  FP

Thank you