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
