What do you use as a decimal point? SPM is happy with 1.23, but may not be so happy with the usual Norwegian 1,23. Best regards, -John On 14 December 2011 08:55, Lauvsnes, Maria Boge <[log in to unmask]> wrote: > Dear SPM users. > I am performing a regression analysis in SPM8, but I get an error message when I use decimals in the covariate values, is this a limitation of the method? > > Thanks! > > Maria Boge Lauvsnes, > Stavanger, Norway