Matlab files used for generating results in paper 
S. Skogestad: "Simple analytic rules for model reduction and PID controller tuning", JPC (2003)

Given files for
	- performance analysis (IAE for setpoint change and input disturbance)
        - input usage (total variation = TV)
	- robustness analysis
        - IAE-optimal tuning
	- IAE-optimal tuning with constraint on Ms
	- more...

See file SUMMARY.m