CROSSTABS: Add test to verify treatment of ties.
[pspp] / tests / language / stats / crosstabs.at
index ce95d75e9f4f3f07c4175f0d5bb4b3b701f9333a..31546677686d20425d837076019d8da6688a6394 100644 (file)
@@ -376,32 +376,32 @@ z,Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
 
 Table: Directional measures.
 z,Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
-1,Nominal by Nominal,Lambda,Symmetric,.40,.28,1.12,
-,,,x Dependent,.25,,1.12,
-,,,y Dependent,1.00,,1.12,
-,,Goodman and Kruskal tau,x Dependent,.25,,,
-,,,y Dependent,1.00,,,
-,,Uncertainty Coefficient,Symmetric,.47,.18,1.51,
-,,,x Dependent,.31,.15,2.02,
-,,,y Dependent,1.00,.00,2.02,
-,Ordinal by Ordinal,Somers' d,Symmetric,.00,.09,.00,
-,,,x Dependent,.00,.50,.00,
-,,,y Dependent,.00,.20,.00,
-,Nominal by Interval,Eta,x Dependent,.04,,,
-,,,y Dependent,1.00,,,
-2,Nominal by Nominal,Lambda,Symmetric,.50,.25,2.00,
-,,,x Dependent,.33,,1.15,
-,,,y Dependent,1.00,,1.15,
-,,Goodman and Kruskal tau,x Dependent,.33,,,
-,,,y Dependent,1.00,,,
-,,Uncertainty Coefficient,Symmetric,.58,.17,1.56,
-,,,x Dependent,.41,.17,2.36,
-,,,y Dependent,1.00,.00,2.36,
-,Ordinal by Ordinal,Somers' d,Symmetric,-.67,.04,-1.73,
-,,,x Dependent,-1.00,.00,-1.73,
-,,,y Dependent,-.50,.29,-1.73,
-,Nominal by Interval,Eta,x Dependent,.73,,,
-,,,y Dependent,1.00,,,
+1,Nominal by Nominal,Lambda,Symmetric,.40,.28,1.12,.264
+,,,x Dependent,.25,.22,1.12,.264
+,,,y Dependent,1.00,.00,1.12,.264
+,,Goodman and Kruskal tau,x Dependent,.25,,,.   @&t@
+,,,y Dependent,1.00,,,.   @&t@
+,,Uncertainty Coefficient,Symmetric,.47,.18,,.   @&t@
+,,,x Dependent,.31,.15,2.02,.   @&t@
+,,,y Dependent,1.00,.00,2.02,.   @&t@
+,Ordinal by Ordinal,Somers' d,Symmetric,.00,,.00,1.000
+,,,x Dependent,.00,.50,.00,1.000
+,,,y Dependent,.00,.20,.00,1.000
+,Nominal by Interval,Eta,x Dependent,.04,,,.   @&t@
+,,,y Dependent,1.00,,,.   @&t@
+2,Nominal by Nominal,Lambda,Symmetric,.50,.25,2.00,.046
+,,,x Dependent,.33,.27,1.15,.248
+,,,y Dependent,1.00,.00,1.15,.248
+,,Goodman and Kruskal tau,x Dependent,.33,,,.   @&t@
+,,,y Dependent,1.00,,,.   @&t@
+,,Uncertainty Coefficient,Symmetric,.58,.17,,.   @&t@
+,,,x Dependent,.41,.17,2.36,.   @&t@
+,,,y Dependent,1.00,.00,2.36,.   @&t@
+,Ordinal by Ordinal,Somers' d,Symmetric,-.67,,-1.73,.083
+,,,x Dependent,-1.00,.00,-1.73,.083
+,,,y Dependent,-.50,.29,-1.73,.083
+,Nominal by Interval,Eta,x Dependent,.73,,,.   @&t@
+,,,y Dependent,1.00,,,.   @&t@
 ]])
 AT_CLEANUP
 
@@ -1030,11 +1030,11 @@ x * y,1296.000,100.0%,.000,0.0%,1296.000,100.0%
 
 Table: Directional measures.
 Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
-Nominal by Nominal,Lambda,Symmetric,.423,.021,16.875,
-,,x Dependent,.497,,15.986,
-,,y Dependent,.370,,16.339,
-,Goodman and Kruskal tau,x Dependent,.382,,,
-,,y Dependent,.198,,,
+Nominal by Nominal,Lambda,Symmetric,.423,.021,16.875,.000
+,,x Dependent,.497,.024,15.986,.000
+,,y Dependent,.370,.020,16.339,.000
+,Goodman and Kruskal tau,x Dependent,.382,,,.   @&t@
+,,y Dependent,.198,,,.   @&t@
 
 Table: Summary.
 ,Cases,,,,,
@@ -1044,11 +1044,11 @@ x * y,137.000,100.0%,.000,0.0%,137.000,100.0%
 
 Table: Directional measures.
 Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
-Nominal by Nominal,Lambda,Symmetric,.259,.081,2.902,
-,,x Dependent,.250,,2.479,
-,,y Dependent,.267,,2.766,
-,Goodman and Kruskal tau,x Dependent,.129,,,
-,,y Dependent,.123,,,
+Nominal by Nominal,Lambda,Symmetric,.259,.081,2.902,.004
+,,x Dependent,.250,.089,2.479,.013
+,,y Dependent,.267,.085,2.766,.006
+,Goodman and Kruskal tau,x Dependent,.129,,,.   @&t@
+,,y Dependent,.123,,,.   @&t@
 
 Table: Summary.
 ,Cases,,,,,
@@ -1058,10 +1058,481 @@ x * y,6800.000,100.0%,.000,0.0%,6800.000,100.0%
 
 Table: Directional measures.
 Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
-Nominal by Nominal,Lambda,Symmetric,.208,.010,18.793,
-,,x Dependent,.224,,16.076,
-,,y Dependent,.192,,14.438,
-,Goodman and Kruskal tau,x Dependent,.089,,,
-,,y Dependent,.081,,,
+Nominal by Nominal,Lambda,Symmetric,.208,.010,18.793,.000
+,,x Dependent,.224,.013,16.076,.000
+,,y Dependent,.192,.012,14.438,.000
+,Goodman and Kruskal tau,x Dependent,.089,,,.   @&t@
+,,y Dependent,.081,,,.   @&t@
+])
+AT_CLEANUP
+
+AT_SETUP([CROSSTABS Goodman and Kruskal's lambda - treatment of ties])
+AT_DATA([lambda.sps], [dnl
+SET FORMAT F8.3.
+
+* From Douglas Bonett.
+DATA LIST LIST NOTABLE/x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 225
+1 2 43
+1 3 216
+2 1 3
+2 2 1
+2 3 12
+END DATA.
+
+CROSSTABS x BY y/CELLS=NONE/STATISTICS=LAMBDA.
+])
+AT_CHECK([pspp -O format=csv lambda.sps], [0], [dnl
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,500.000,100.0%,.000,0.0%,500.000,100.0%
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Lambda,Symmetric,.031,.013,2.336,.019
+,,x Dependent,.000,.000,NaN,NaN
+,,y Dependent,.033,.014,2.336,.019
+,Goodman and Kruskal tau,x Dependent,.012,,,.   @&t@
+,,y Dependent,.009,,,.   @&t@
+])
+AT_CLEANUP
+
+AT_SETUP([CROSSTABS Somers' D, Tau-B, Tau-C, Gamma])
+AT_DATA([somersd.sps], [dnl
+SET FORMAT F8.3.
+
+* From http://stats.stackexchange.com/questions/72203/problem-with-calculating-asymptotic-standard-error-for-somers-d.
+DATA LIST LIST NOTABLE/x y * w (F10.6).
+WEIGHT BY w.
+BEGIN DATA.
+1 1 0.000025
+1 2 0.0001
+1 3 0.001
+1 4 0.0025
+1 5 0.004
+1 6 0.0075
+1 7 0.0125
+2 1 0.049975
+2 2 0.0999
+2 3 0.199
+2 4 0.2475
+2 5 0.196
+2 6 0.1425
+2 7 0.0375
+END DATA.
+CROSSTABS x BY y/STATISTICS=D/CELLS=NONE.
+
+* From http://uregina.ca/~gingrich/gamma.pdf.
+DATA LIST LIST NOTABLE/x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 34
+1 2 24
+1 3 15
+2 1 42
+2 2 74
+2 3 67
+3 1 28
+3 2 111
+3 3 292
+END DATA.
+CROSSTABS x BY y/STATISTICS=BTAU CTAU GAMMA D/CELLS=NONE.
+])
+AT_CHECK([pspp -O format=csv somersd.sps], [0], [dnl
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,1.000000,100.0%,.000000,0.0%,1.000000,100.0%
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,-.084,,-.149,.882
+,,x Dependent,-.045,.300,-.149,.882
+,,y Dependent,-.684,2.378,-.149,.882
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,687.000,100.0%,.000,0.0%,687.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Kendall's tau-b,.372,.033,10.669,
+,Kendall's tau-c,.310,.029,10.669,
+,Gamma,.591,.043,10.669,
+N of Valid Cases,,687.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,.371,,10.669,.000
+,,x Dependent,.351,.032,10.669,.000
+,,y Dependent,.394,.035,10.669,.000
+])
+
+AT_DATA([ordinal.sps], [dnl
+SET FORMAT F8.3.
+
+* From https://www.iup.edu/WorkArea/DownloadAsset.aspx?id=9829, "Case 1".
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 2 40
+2 3 80
+3 4 30
+END DATA.
+CROSSTABS x BY y/STATISTICS=GAMMA D BTAU/CELLS=NONE.
+
+* Same site, case 2.
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 40
+2 3 80
+3 4 30
+END DATA.
+CROSSTABS x BY y/STATISTICS=GAMMA D BTAU/CELLS=NONE.
+
+* Same site, case 3.
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 4 40
+2 3 80
+3 2 30
+END DATA.
+CROSSTABS x BY y/STATISTICS=GAMMA D BTAU/CELLS=NONE.
+
+* Same site, case 4.
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 20
+1 2 20
+2 3 80
+3 4 30
+END DATA.
+CROSSTABS x BY y/STATISTICS=GAMMA D BTAU/CELLS=NONE.
+
+* Same site, case 5.
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 2 40
+2 2 80
+3 2 29
+3 3 1
+END DATA.
+CROSSTABS x BY y/STATISTICS=GAMMA D BTAU/CELLS=NONE.
+
+* Same site, case 6.
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 3
+1 2 6
+1 3 28
+1 4 61
+2 1 4
+2 2 5
+2 3 21
+2 4 20
+END DATA.
+CROSSTABS x BY y/STATISTICS=GAMMA D BTAU/CELLS=NONE.
+
+* Same site, case 7.
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 38
+1 2 6
+1 3 3
+1 4 51
+2 1 4
+2 2 20
+2 3 21
+2 4 5
+END DATA.
+CROSSTABS x BY y/STATISTICS=LAMBDA D PHI GAMMA/CELLS=NONE.
+
+* Same site, case 8.
+DATA LIST LIST NOTABLE /x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 2
+1 2 3
+1 3 5
+1 4 1
+2 1 2
+2 2 16
+2 3 3
+2 4 6
+3 1 3
+3 2 10
+3 3 35
+3 4 27
+4 1 6
+4 2 15
+4 3 33
+4 4 45
+END DATA.
+CROSSTABS x BY y/STATISTICS=LAMBDA D PHI BTAU/CELLS=NONE.
+])
+AT_CHECK([pspp -O format=csv ordinal.sps], [0], [dnl
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,150.000,100.0%,.000,0.0%,150.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Kendall's tau-b,1.000,.000,24.841,
+,Gamma,1.000,.000,24.841,
+N of Valid Cases,,150.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,1.000,,24.841,.000
+,,x Dependent,1.000,.000,24.841,.000
+,,y Dependent,1.000,.000,24.841,.000
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,150.000,100.0%,.000,0.0%,150.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Kendall's tau-b,1.000,.000,24.841,
+,Gamma,1.000,.000,24.841,
+N of Valid Cases,,150.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,1.000,,24.841,.000
+,,x Dependent,1.000,.000,24.841,.000
+,,y Dependent,1.000,.000,24.841,.000
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,150.000,100.0%,.000,0.0%,150.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Kendall's tau-b,-1.000,.000,-24.841,
+,Gamma,-1.000,.000,-24.841,
+N of Valid Cases,,150.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,-1.000,,-24.841,.000
+,,x Dependent,-1.000,.000,-24.841,.000
+,,y Dependent,-1.000,.000,-24.841,.000
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,150.000,100.0%,.000,0.0%,150.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Kendall's tau-b,.972,.007,24.841,
+,Gamma,1.000,.000,24.841,
+N of Valid Cases,,150.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,.971,,24.841,.000
+,,x Dependent,.944,.013,24.841,.000
+,,y Dependent,1.000,.000,24.841,.000
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,150.000,100.0%,.000,0.0%,150.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Kendall's tau-b,.119,.059,1.009,
+,Gamma,1.000,.000,1.009,
+N of Valid Cases,,150.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,.035,,1.009,.313
+,,x Dependent,.805,.032,1.009,.313
+,,y Dependent,.018,.017,1.009,.313
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,148.000,100.0%,.000,0.0%,148.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Kendall's tau-b,-.208,.078,-2.641,
+,Gamma,-.381,.130,-2.641,
+N of Valid Cases,,148.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Ordinal by Ordinal,Somers' d,Symmetric,-.206,,-2.641,.008
+,,x Dependent,-.182,.069,-2.641,.008
+,,y Dependent,-.237,.089,-2.641,.008
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,148.000,100.0%,.000,0.0%,148.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Phi,.731,,,
+,Cramer's V,.731,,,
+Ordinal by Ordinal,Gamma,-.110,.107,-1.022,
+N of Valid Cases,,148.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Lambda,Symmetric,.338,.059,4.743,.000
+,,x Dependent,.640,.085,4.875,.000
+,,y Dependent,.174,.050,3.248,.001
+,Goodman and Kruskal tau,x Dependent,.534,,,.   @&t@
+,,y Dependent,.167,,,.   @&t@
+Ordinal by Ordinal,Somers' d,Symmetric,-.074,,-1.022,.307
+,,x Dependent,-.060,.059,-1.022,.307
+,,y Dependent,-.096,.094,-1.022,.307
+
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,212.000,100.0%,.000,0.0%,212.000,100.0%
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Phi,.432,,,
+,Cramer's V,.249,,,
+Ordinal by Ordinal,Kendall's tau-b,.209,.062,3.338,
+N of Valid Cases,,212.000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Lambda,Symmetric,.102,.067,1.473,.141
+,,x Dependent,.027,.087,.302,.763
+,,y Dependent,.165,.065,2.349,.019
+,Goodman and Kruskal tau,x Dependent,.051,,,.   @&t@
+,,y Dependent,.068,,,.   @&t@
+Ordinal by Ordinal,Somers' d,Symmetric,.209,,3.338,.001
+,,x Dependent,.202,.060,3.338,.001
+,,y Dependent,.217,.064,3.338,.001
+])
+AT_CLEANUP
+
+AT_SETUP([CROSSTABS many statistics])
+AT_DATA([crosstabs.sps], [dnl
+SET FORMAT=F8.4.
+
+* From http://www4.stat.ncsu.edu/~dzhang2/st744/table3.9.lst.txt.
+DATA LIST LIST NOTABLE/x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 25
+1 2 25
+1 3 12
+2 2 1
+2 3 3
+END DATA.
+CROSSTABS x BY y/STATISTICS=CHISQ PHI CC LAMBDA UC BTAU CTAU GAMMA D CORR/CELLS=NONE.
+])
+AT_CHECK([pspp -O format=csv crosstabs.sps], [0], [dnl
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,66.0000,100.0%,.0000,0.0%,66.0000,100.0%
+
+Table: Chi-square tests.
+Statistic,Value,df,Asymp. Sig. (2-tailed)
+Pearson Chi-Square,6.9562,2.0000,.031
+Likelihood Ratio,6.6901,2.0000,.035
+Linear-by-Linear Association,5.8450,1.0000,.016
+N of Valid Cases,66.0000,,
+
+Table: Symmetric measures.
+Category,Statistic,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Phi,.3246,,,
+,Cramer's V,.3246,,,
+,Contingency Coefficient,.3088,,,
+Ordinal by Ordinal,Kendall's tau-b,.2752,.0856,1.9920,
+,Kendall's tau-c,.1497,.0751,1.9920,
+,Gamma,.8717,.1250,1.9920,
+,Spearman Correlation,.2908,.0906,2.4311,
+Interval by Interval,Pearson's R,.2999,.0973,2.5147,
+N of Valid Cases,,66.0000,,,
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Lambda,Symmetric,.0455,.1629,.2723,.785
+,,x Dependent,.0000,.0000,NaN,NaN
+,,y Dependent,.0500,.1791,.2723,.785
+,Goodman and Kruskal tau,x Dependent,.1054,,,.   @&t@
+,,y Dependent,.0434,,,.   @&t@
+,Uncertainty Coefficient,Symmetric,.0780,.0474,,.   @&t@
+,,x Dependent,.2217,.1062,1.5373,.   @&t@
+,,y Dependent,.0473,.0306,1.5373,.   @&t@
+Ordinal by Ordinal,Somers' d,Symmetric,.1960,,1.9920,.046
+,,x Dependent,.1152,.0572,1.9920,.046
+,,y Dependent,.6573,.1417,1.9920,.046
+])
+AT_CLEANUP
+
+AT_SETUP([CROSSTABS uncertainy coefficient])
+AT_DATA([uc.sps], [dnl
+* From http://groups.chass.utoronto.ca/pol242/5bMeasuringAssociation.htm.
+SET FORMAT=F8.3.
+
+DATA LIST LIST NOTABLE/x y w.
+WEIGHT BY w.
+BEGIN DATA.
+1 1 416
+1 2 121
+2 1 335
+2 2 2
+3 1 112
+3 2 1
+END DATA.
+CROSSTABS x BY y/STATISTICS=LAMBDA UC/CELLS=NONE.
+])
+AT_CHECK([pspp -O format=csv uc.sps], [0], [dnl
+Table: Summary.
+,Cases,,,,,
+,Valid,,Missing,,Total,
+,N,Percent,N,Percent,N,Percent
+x * y,987.000,100.0%,.000,0.0%,987.000,100.0%
+
+Table: Directional measures.
+Category,Statistic,Type,Value,Asymp. Std. Error,Approx. T,Approx. Sig.
+Nominal by Nominal,Lambda,Symmetric,.000,.000,NaN,NaN
+,,x Dependent,.000,.000,NaN,NaN
+,,y Dependent,.000,.000,NaN,NaN
+,Goodman and Kruskal tau,x Dependent,.076,,,.   @&t@
+,,y Dependent,.108,,,.   @&t@
+,Uncertainty Coefficient,Symmetric,.105,.012,,.   @&t@
+,,x Dependent,.073,.009,7.890,.   @&t@
+,,y Dependent,.184,.019,7.890,.   @&t@
 ])
 AT_CLEANUP