>>>>> "JB" == JB <[EMAIL PROTECTED]> writes:
> (1) So finally, thank to your help I have this: > summary(lm(x ~ 0+I(t^2))) [...] Would you post your data set? It is hard for me to sort out what is going on without seeing the input. Regards, Mike ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help