A quick possibility: if you have pasted in the formula you used, I see an order of operations problem: .5*ln(1+r)-ln(1-r) means (.5*ln(1+r))-ln(1-r), where the usual formula is .5*ln((1+r)/(1-r)), which after some log identities becomes .5*(ln(1+r)-ln(1-r)).
Tim On Mon, Mar 30, 2015 at 11:02 AM, Yizhou Ma <[email protected]> wrote: > Dear HCP experts, > > I am trying to reproduce the individual netmats from HCP500-PTN so that I > am sure where the numbers come from. I used individual node timeseries in > /ts2/subjID and did correlation in matlab. I then used fisher's z > transformation: .5*ln(1+r)-ln(1-r). The resulting netmat is different from > what is provided in *_netmat1/. However, they almost have a linear > relationship. It seems to me that HCP is not using the same z > transformation I have used. The transformation seems more like > 7*ln(1+r)-ln(1-r). > > I have downloaded FSLNets but could not identify which function was used > to generate individual netmats in the first place. The example script seems > to be about group-level netmats only. > > Could you please share with me how exactly the numbers in individual > netmats were generated? > > Thanks, > Cherry > > _______________________________________________ > HCP-Users mailing list > [email protected] > http://lists.humanconnectome.org/mailman/listinfo/hcp-users > _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
