Hi, All the double minus options in FSL require an equals sign after them. That is: cutoffcalc --tr=2.5 -i emotion.mat All the best, Mark On 8 Dec 2009, at 22:19, Christine Corbly wrote: > I am trying to run cutoffcalc using some of the options. How do I > change the TR? > I have tried various ways to make the option work > ie: > cutoffcalc -tr 2.5 -i emotion.mat > -r: Option doesn't exist! > > cutoffcalc --tr 2.5 -i emotion.mat > --tr: Missing non-optional argument! > > What am I missing? > > Thanks Christine >