 |
 |
yes that is what it means, I thought you were asking what was causing it. what were your degrees of freedom? Cheers, Michael On Tue, Mar 1, 2011 at 8:29 PM, Anna McCarrey <[log in to unmask]>wrote: > Hi Michael thanks for your quick reponse. I was doing a simple condition > > baseline comparison. I only get 'Inf' for the really large F values like > > 100. But the smaller F values report a z stat. > > I thought it might mean infinite ??! > > -----Original Message----- > From: [log in to unmask] [mailto:[log in to unmask]] > On Behalf Of Michael T Rubens > Sent: Wednesday, 2 March 2011 2:58 PM > To: Anna McCarrey > Cc: [log in to unmask] > Subject: Re: [SPM] z values > > that probably means that something is not right. What analysis were > you doing? for instance, if you were doing a permutation test, it > could be that you didn't perform enough iterations to resolve the > significance. > > Cheers, > Michael > > On Tue, Mar 1, 2011 at 7:50 PM, Anna McCarrey <[log in to unmask]> > wrote: > > Hi SPM experts, > > > > in whole brain analyses in fMRI, when the Z value is Inf, what does this > mean and how do I report this? > > > > Many thanks in advance. > > > > Anna > > > > > > -- > Research Associate > Gazzaley Lab > Department of Neurology > University of California, San Francisco > -- Research Associate Gazzaley Lab Department of Neurology University of California, San Francisco