Talk:Using SPSS and PASW/Recoding Variables: from scale to category

This page isn't carefully written. If a variable is of ratio scale, its values start at zero. By the scheme and info presented, one would have to enter -.0000000...1 in order to start its first tier at 0. Gherson (discuss • contribs) 00:57, 24 July 2014 (UTC)

Can you explain what difference it would make?

You start recoding by choosing lowest through, in other words for the first/lowest of the new ordinals you only specify the ceiling - you would never have to specify the floor. SPSS has no mechanism for differentiating interval and ratio variables here (or anywhere?) and the only reason to do this would be data validation which isn't part of recoding.