Very often when such wierd things happen, the cause has been due to one or more variables having a missing value or a weight set which the user didn't realise.
J' On Wed, Jul 22, 2026 at 11:08:55PM +0200, ftr wrote: > I am sorry, for my late answer, but I was occupied, and then I was not able > to reproduce the error. > > In the meantime, the error did not appear again. > > Thanks for your proposition to help. > > - ftr > > On 14/06/2026 17:24, Ben Pfaff wrote: > > That looks like a bug. If you're willing to share the data with me, or > > some subset of the data that shows similar problems, then I will try to > > find the bug. > > > > On Sat, Jun 13, 2026 at 2:11 PM ftr <[email protected]> wrote: > > > > Hi, > > > > I try to calculate à typology of sociocultural milieux with data > > from the ESS survey. After having calculated three continuous > > variables: ses culture populism as input for the typology I now > > want to cluster them. > > > > N = 2420. > > > > > > QUICK CLUSTER ses culture populism > > /CRITERIA CLUSTERS(8) > > /SAVE CLUSTER(milieu). > > > > The result is incomprehensible to me. > > > > The majority of cases disappeared, though there are few missings > > in the original variables. > > > > And the clusters have a NaN entry which says nothing to me. The > > PSPP Help tries to explain what NaN means, but I don't understand it. > > > > And I don't see how to run a cluster analysis that works. > > > > > > Final Cluster Centers > > ╭───────────────┬────────────────────────────────────╮ > > │ │ Cluster │ > > │ ├───┬────┬─────┬───┬─────┬───┬───┬───┤ > > │ │ 1 │ 2 │ 3 │ 4 │ 5 │ 6 │ 7 │ 8 │ > > ├───────────────┼───┼────┼─────┼───┼─────┼───┼───┼───┤ > > │ses │NaN│2.87│-2.94│NaN│-1.76│NaN│NaN│NaN│ > > │values │NaN│-.23│ 1.91│NaN│ -.30│NaN│NaN│NaN│ > > │populism │NaN│-.49│ -.25│NaN│ .76│NaN│NaN│NaN│ > > ╰───────────────┴───┴────┴─────┴───┴─────┴───┴───┴───╯ > > > > Number of Cases in each Cluster > > ╭─────────┬─────╮ > > │ │Count│ > > ├─────────┼─────┤ > > │Cluster 1│ 0│ > > │ 2│ 363│ > > │ 3│ 129│ > > │ 4│ 0│ > > │ 5│ 639│ > > │ 6│ 0│ > > │ 7│ 0│ > > │ 8│ 0│ > > ├─────────┼─────┤ > > │Valid │ 1131│ > > ╰─────────┴─────╯ > > > > > > Thanks for your help. > > > > - ftr > >
