--- /dev/null
+dnl PSPP - a program for statistical analysis.
+dnl Copyright (C) 2017 Free Software Foundation, Inc.
+dnl
+dnl This program is free software: you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation, either version 3 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
+dnl
+AT_BANNER([T-TEST])
+
+AT_SETUP([T-TEST /PAIRS])
+AT_DATA([t-test.sps], [dnl
+data list list /ID * A * B *.
+begin data.
+1 2.0 3.0
+2 1.0 2.0
+3 2.0 4.5
+4 2.0 4.5
+5 3.0 6.0
+end data.
+
+t-test /PAIRS a with b (PAIRED).
+])
+
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+ID,F8.0
+A,F8.0
+B,F8.0
+
+Table: Paired Sample Statistics
+,,N,Mean,Std. Deviation,S.E. Mean
+Pair 1,A,5,2.00,.71,.32
+,B,5,4.00,1.54,.69
+
+Table: Paired Samples Correlations
+,,N,Correlation,Sig.
+Pair 1,A & B,5,.918,.028
+
+Table: Paired Samples Test
+,,Paired Differences,,,,,t,df,Sig. (2-tailed)
+,,Mean,Std. Deviation,S.E. Mean,95% Confidence Interval of the Difference,,,,
+,,,,,Lower,Upper,,,
+Pair 1,A - B,-2.00,.94,.42,-3.16,-.84,-4.78,4,.009
+])
+AT_CLEANUP
+
+
+AT_SETUP([T-TEST /PAIRS with per-analysis missing values])
+
+AT_DATA([ref.sps], [dnl
+data list list /id * a * b * c * d *.
+begin data.
+1 2.0 3.0 4.0 4.0
+2 1.0 2.0 5.1 3.9
+3 2.0 4.5 5.2 3.8
+4 2.0 4.5 5.3 3.7
+56 3.0 6.0 5.9 3.6
+end data.
+
+t-test /PAIRS a c with b d (PAIRED).
+])
+
+AT_DATA([expout], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+id,F8.0
+a,F8.0
+b,F8.0
+c,F8.0
+d,F8.0
+
+Table: Paired Sample Statistics
+,,N,Mean,Std. Deviation,S.E. Mean
+Pair 1,a,5,2.00,.71,.32
+,b,5,4.00,1.54,.69
+Pair 2,c,5,5.10,.69,.31
+,d,5,3.80,.16,.07
+
+Table: Paired Samples Correlations
+,,N,Correlation,Sig.
+Pair 1,a & b,5,.918,.028
+Pair 2,c & d,5,-.918,.028
+
+Table: Paired Samples Test
+,,Paired Differences,,,,,t,df,Sig. (2-tailed)
+,,Mean,Std. Deviation,S.E. Mean,95% Confidence Interval of the Difference,,,,
+,,,,,Lower,Upper,,,
+Pair 1,a - b,-2.00,.94,.42,-3.16,-.84,-4.78,4,.009
+Pair 2,c - d,1.30,.84,.37,.26,2.34,3.47,4,.025
+])
+
+AT_CHECK([pspp -o ref.csv ref.sps])
+AT_CHECK([cat ref.csv], [0], [expout])
+AT_DATA([missing.sps], [dnl
+data list list /id * a * b * c * d *.
+begin data.
+1 2.0 3.0 4.0 4.0
+2 1.0 2.0 5.1 3.9
+3 2.0 4.5 5.2 3.8
+4 2.0 4.5 5.3 3.7
+5 3.0 6.0 5.9 .
+6 3.0 . 5.9 3.6
+end data.
+
+
+t-test /MISSING=analysis /PAIRS a c with b d (PAIRED) /CRITERIA=CI(0.95).
+])
+
+AT_CHECK([pspp -o missing.csv missing.sps])
+AT_CHECK([cat missing.csv], [0], [expout])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /PAIRS with listwise missing values])
+AT_DATA([ref.sps], [dnl
+data list list /id * a * b * c * d *.
+begin data.
+1 2.0 3.0 4.0 4.0
+2 1.0 2.0 5.1 3.9
+3 2.0 4.5 5.2 3.8
+4 2.0 4.5 5.3 3.7
+5 3.0 6.0 5.9 3.6
+end data.
+
+t-test /PAIRS a b with c d (PAIRED).
+])
+
+AT_DATA([expout], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+id,F8.0
+a,F8.0
+b,F8.0
+c,F8.0
+d,F8.0
+
+Table: Paired Sample Statistics
+,,N,Mean,Std. Deviation,S.E. Mean
+Pair 1,a,5,2.00,.71,.32
+,c,5,5.10,.69,.31
+Pair 2,b,5,4.00,1.54,.69
+,d,5,3.80,.16,.07
+
+Table: Paired Samples Correlations
+,,N,Correlation,Sig.
+Pair 1,a & c,5,.410,.493
+Pair 2,b & d,5,-.872,.054
+
+Table: Paired Samples Test
+,,Paired Differences,,,,,t,df,Sig. (2-tailed)
+,,Mean,Std. Deviation,S.E. Mean,95% Confidence Interval of the Difference,,,,
+,,,,,Lower,Upper,,,
+Pair 1,a - c,-3.10,.76,.34,-4.04,-2.16,-9.14,4,.001
+Pair 2,b - d,.20,1.68,.75,-1.89,2.29,.27,4,.803
+])
+
+AT_CHECK([pspp -o ref.csv ref.sps])
+
+AT_CHECK([cat ref.csv], [0], [expout])
+
+AT_DATA([missing.sps], [dnl
+data list list /id * a * b * c * d *.
+begin data.
+1 2.0 3.0 4.0 4.0
+2 1.0 2.0 5.1 3.9
+3 2.0 4.5 5.2 3.8
+4 2.0 4.5 5.3 3.7
+5 3.0 6.0 5.9 3.6
+6 3.0 6.0 5.9 .
+end data.
+
+
+t-test /MISSING=listwise /PAIRS a b with c d (PAIRED).
+])
+AT_CHECK([pspp -o missing.csv missing.sps])
+AT_CHECK([cat missing.csv], [0], [expout])
+AT_CLEANUP
+
+
+dnl Tests for a bug in the paired samples T test when weighted
+dnl Thanks to Douglas Bonett for reporting this.
+AT_SETUP([T-TEST weighted paired bug])
+AT_DATA([t-test.sps], [dnl
+DATA LIST notable LIST /x y w *.
+BEGIN DATA.
+1 1 255
+1 2 43
+1 3 216
+2 1 3
+2 2 1
+2 3 12
+END DATA.
+
+WEIGHT BY w.
+
+T-TEST
+ PAIRS = y WITH x (PAIRED)
+ /MISSING=ANALYSIS
+ /CRITERIA=CI(0.95).
+])
+
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Paired Sample Statistics
+,,N,Mean,Std. Deviation,S.E. Mean
+Pair 1,y,530.00,1.94,.96,.04
+,x,530.00,1.03,.17,.01
+
+Table: Paired Samples Correlations
+,,N,Correlation,Sig.
+Pair 1,y & x,530.00,.114,.008
+
+Table: Paired Samples Test
+,,Paired Differences,,,,,t,df,Sig. (2-tailed)
+,,Mean,Std. Deviation,S.E. Mean,95% Confidence Interval of the Difference,,,,
+,,,,,Lower,Upper,,,
+Pair 1,y - x,.91,.95,.04,.83,.99,22.07,529.00,.000
+])
+AT_CLEANUP
+
+
+dnl Tests for a bug in the paired samples T test.
+dnl Thanks to Mike Griffiths for reporting this problem.
+AT_SETUP([T-TEST /PAIRS bug])
+AT_DATA([t-test.sps], [dnl
+set format f8.3.
+data list list /A * B *.
+begin data.
+11 2
+1 1
+1 1
+end data.
+
+t-test pairs = a with b (paired).
+])
+AT_CHECK([pspp -o pspp.csv t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+A,F8.0
+B,F8.0
+
+Table: Paired Sample Statistics
+,,N,Mean,Std. Deviation,S.E. Mean
+Pair 1,A,3,4.333,5.774,3.333
+,B,3,1.333,.577,.333
+
+Table: Paired Samples Correlations
+,,N,Correlation,Sig.
+Pair 1,A & B,3,1.000,.000
+
+Table: Paired Samples Test
+,,Paired Differences,,,,,t,df,Sig. (2-tailed)
+,,Mean,Std. Deviation,S.E. Mean,95% Confidence Interval of the Difference,,,,
+,,,,,Lower,Upper,,,
+Pair 1,A - B,3.000,5.196,3.000,-9.908,15.908,1.000,2,.423
+])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /GROUPS])
+AT_DATA([t-test.sps], [dnl
+data list list /ID * INDEP * DEP1 * DEP2 *.
+begin data.
+1 1.1 1 3
+2 1.1 2 4
+3 1.1 2 4
+4 1.1 2 4
+5 1.1 3 5
+6 2.1 3 1
+7 2.1 4 2
+8 2.1 4 2
+9 2.1 4 2
+10 2.1 5 3
+11 3.1 2 2
+end data.
+
+* Note that the last case should be IGNORED since it doesn't have a
+ dependent variable of either 1.1 or 2.1.
+
+t-test /GROUPS=indep(1.1,2.1) /var=dep1 dep2.
+])
+
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+ID,F8.0
+INDEP,F8.0
+DEP1,F8.0
+DEP2,F8.0
+
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+DEP1,1.10,5,2.00,.71,.32
+,2.10,5,4.00,.71,.32
+DEP2,1.10,5,4.00,.71,.32
+,2.10,5,2.00,.71,.32
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+DEP1,Equal variances assumed,.00,1.000,-4.47,8.00,.002,-2.00,.45,-3.03,-.97
+,Equal variances not assumed,,,-4.47,8.00,.002,-2.00,.45,-3.03,-.97
+DEP2,Equal variances assumed,.00,1.000,4.47,8.00,.002,2.00,.45,.97,3.03
+,Equal variances not assumed,,,4.47,8.00,.002,2.00,.45,.97,3.03
+])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /GROUPS with one value for independent variable])
+AT_DATA([t-test.sps], [dnl
+data list list /INDEP * DEP *.
+begin data.
+ 1 6
+ 1 6
+ 1 7
+ 1 6
+ 1 13
+ 1 4
+ 1 7
+ 1 9
+ 1 7
+ 1 12
+ 1 11
+ 2 11
+ 2 9
+ 2 8
+ 2 4
+ 2 16
+ 2 9
+ 2 9
+ 2 5
+ 2 4
+ 2 10
+ 2 14
+end data.
+t-test /groups=indep(1.514) /var=dep.
+])
+
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+INDEP,F8.0
+DEP,F8.0
+
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+DEP,≥ 1.51,11,9.00,3.82,1.15
+,< 1.51,11,8.00,2.86,.86
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+DEP,Equal variances assumed,.17,.683,.69,20.00,.495,1.00,1.44,-2.00,4.00
+,Equal variances not assumed,,,.69,18.54,.496,1.00,1.44,-2.02,4.02
+])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /GROUPS with per-analysis missing values])
+AT_DATA([ref.sps], [dnl
+data list list /id * indep * dep1 * dep2 *.
+begin data.
+1 1.0 3.5 6
+2 1.0 2.0 5
+3 1.0 2.0 4
+4 2.0 3.5 3
+56 2.0 3.0 1
+end data.
+
+t-test /group=indep /var=dep1, dep2.
+])
+AT_DATA([expout], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+id,F8.0
+indep,F8.0
+dep1,F8.0
+dep2,F8.0
+
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+dep1,1.00,3,2.50,.87,.50
+,2.00,2,3.25,.35,.25
+dep2,1.00,3,5.00,1.00,.58
+,2.00,2,2.00,1.41,1.00
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+dep1,Equal variances assumed,3.75,.148,-1.12,3.00,.346,-.75,.67,-2.89,1.39
+,Equal variances not assumed,,,-1.34,2.78,.279,-.75,.56,-2.61,1.11
+dep2,Equal variances assumed,.60,.495,2.85,3.00,.065,3.00,1.05,-.35,6.35
+,Equal variances not assumed,,,2.60,1.68,.144,3.00,1.15,-2.98,8.98
+])
+AT_CHECK([pspp -o ref.csv ref.sps])
+AT_CHECK([cat ref.csv], [0], [expout])
+AT_DATA([missing.sps], [dnl
+data list list /id * indep * dep1 * dep2.
+begin data.
+1 1.0 3.5 6
+2 1.0 2.0 5
+3 1.0 2.0 4
+4 2.0 3.5 3
+5 2.0 3.0 .
+6 2.0 . 1
+7 . 3.1 5
+end data.
+
+* Note that if the independent variable is missing, then it's implicitly
+* listwise missing.
+
+t-test /missing=analysis /group=indep /var=dep1 dep2.
+])
+AT_CHECK([pspp -o missing.csv missing.sps])
+AT_CHECK([cat missing.csv], [0], [expout])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /GROUPS with listwise missing values])
+AT_DATA([ref.sps], [dnl
+data list list /id * indep * dep1 * dep2.
+begin data.
+1 1.0 3.5 6
+2 1.0 2.0 5
+3 1.0 2.0 4
+4 2.0 3.5 3
+5 2.0 3.0 2
+6 2.0 4.0 1
+end data.
+
+t-test /group=indep /var=dep1 dep2.
+])
+
+AT_DATA([expout], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+id,F8.0
+indep,F8.0
+dep1,F8.0
+dep2,F8.0
+
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+dep1,1.00,3,2.50,.87,.50
+,2.00,3,3.50,.50,.29
+dep2,1.00,3,5.00,1.00,.58
+,2.00,3,2.00,1.00,.58
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+dep1,Equal variances assumed,2.00,.230,-1.73,4.00,.158,-1.00,.58,-2.60,.60
+,Equal variances not assumed,,,-1.73,3.20,.176,-1.00,.58,-2.77,.77
+dep2,Equal variances assumed,.00,1.000,3.67,4.00,.021,3.00,.82,.73,5.27
+,Equal variances not assumed,,,3.67,4.00,.021,3.00,.82,.73,5.27
+])
+
+AT_CHECK([pspp -o ref.csv ref.sps])
+AT_CHECK([cat ref.csv], [0], [expout])
+AT_DATA([missing.sps], [dnl
+data list list /id * indep * dep1 * dep2 *.
+begin data.
+1 1.0 3.5 6
+2 1.0 2.0 5
+3 1.0 2.0 4
+4 2.0 3.5 3
+5 2.0 3.0 2
+6 2.0 4.0 1
+7 2.0 . 0
+end data.
+
+t-test /missing=listwise,exclude /group=indep /var=dep1, dep2.
+])
+AT_CHECK([pspp -o missing.csv missing.sps])
+AT_CHECK([cat missing.csv], [0], [expout])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /TESTVAL])
+AT_DATA([t-test.sps], [dnl
+data list list /ID * ABC *.
+begin data.
+1 3.5
+2 2.0
+3 2.0
+4 3.5
+5 3.0
+6 4.0
+end data.
+
+t-test /testval=2.0 /var=abc.
+])
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+ID,F8.0
+ABC,F8.0
+
+Table: One-Sample Statistics
+,N,Mean,Std. Deviation,S.E. Mean
+ABC,6,3.00,.84,.34
+
+Table: One-Sample Test
+,Test Value = 2,,,,,
+,t,df,Sig. (2-tailed),Mean Difference,95% Confidence Interval of the Difference,
+,,,,,Lower,Upper
+ABC,2.93,5,.033,1.00,.12,1.88
+])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /TESTVAL with per-analysis missing values])
+AT_DATA([ref.sps], [dnl
+data list list /id * x1 * x2.
+begin data.
+1 3.5 34
+2 2.0 10
+3 2.0 23
+4 3.5 98
+5 3.0 23
+67 4.0 8
+end data.
+
+t-test /testval=3.0 /var=x1 x2.
+])
+AT_DATA([expout], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+id,F8.0
+x1,F8.0
+x2,F8.0
+
+Table: One-Sample Statistics
+,N,Mean,Std. Deviation,S.E. Mean
+x1,6,3.00,.84,.34
+x2,6,32.67,33.40,13.64
+
+Table: One-Sample Test
+,Test Value = 3,,,,,
+,t,df,Sig. (2-tailed),Mean Difference,95% Confidence Interval of the Difference,
+,,,,,Lower,Upper
+x1,.00,5,1.000,.00,-.88,.88
+x2,2.18,5,.082,29.67,-5.39,64.72
+])
+AT_CHECK([pspp -o ref.csv ref.sps])
+AT_CHECK([cat ref.csv], [0], [expout])
+AT_DATA([missing.sps], [dnl
+data list list /id * x1 * x2.
+begin data.
+1 3.5 34
+2 2.0 10
+3 2.0 23
+4 3.5 98
+5 3.0 23
+6 4.0 .
+7 . 8
+end data.
+
+t-test /missing=analysis /testval=3.0 /var=x1 x2.
+])
+AT_CHECK([pspp -o missing.csv missing.sps])
+AT_CHECK([cat missing.csv], [0], [expout])
+AT_CLEANUP
+
+AT_SETUP([T-TEST /TESTVAL with listwise missing values])
+AT_DATA([ref.sps], [dnl
+data list list /id * x1 * x2.
+begin data.
+1 3.5 34
+2 2.0 10
+3 2.0 23
+4 3.5 98
+5 3.0 23
+end data.
+
+t-test /testval=3.0 /var=x1 x2.
+])
+AT_DATA([expout], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+id,F8.0
+x1,F8.0
+x2,F8.0
+
+Table: One-Sample Statistics
+,N,Mean,Std. Deviation,S.E. Mean
+x1,5,2.80,.76,.34
+x2,5,37.60,34.82,15.57
+
+Table: One-Sample Test
+,Test Value = 3,,,,,
+,t,df,Sig. (2-tailed),Mean Difference,95% Confidence Interval of the Difference,
+,,,,,Lower,Upper
+x1,-.59,4,.587,-.20,-1.14,.74
+x2,2.22,4,.090,34.60,-8.63,77.83
+])
+AT_CHECK([pspp -o ref.csv ref.sps])
+AT_CHECK([cat ref.csv], [0], [expout])
+AT_DATA([missing.sps], [dnl
+data list list /id * x1 * x2.
+begin data.
+1 3.5 34
+2 2.0 10
+3 2.0 23
+4 3.5 98
+5 3.0 23
+6 4.0 99
+end data.
+
+MISSING VALUES x2(99).
+
+t-test /missing=listwise /testval=3.0 /var=x1 x2.
+])
+AT_CHECK([pspp -o missing.csv missing.sps])
+AT_CHECK([cat missing.csv], [0], [expout])
+AT_CLEANUP
+
+AT_SETUP([T-TEST wih TEMPORARY transformation])
+AT_DATA([ref.sps], [dnl
+data list list /ind * x * .
+begin data.
+1 3.5
+1 2.0
+1 2.0
+2 3.5
+2 3.0
+2 4.0
+end data.
+
+t-test /groups=ind(1,2) /var x.
+])
+AT_DATA([expout], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+ind,F8.0
+x,F8.0
+
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+x,1.00,3,2.50,.87,.50
+,2.00,3,3.50,.50,.29
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+x,Equal variances assumed,2.00,.230,-1.73,4.00,.158,-1.00,.58,-2.60,.60
+,Equal variances not assumed,,,-1.73,3.20,.176,-1.00,.58,-2.77,.77
+])
+AT_CHECK([pspp -o ref.csv ref.sps])
+AT_CHECK([cat ref.csv], [0], [expout])
+AT_DATA([temporary.sps], [dnl
+data list list /ind * x * .
+begin data.
+1 3.5
+1 2.0
+1 2.0
+2 3.5
+2 3.0
+2 4.0
+2 9.0
+end data.
+
+TEMPORARY.
+SELECT IF x < 7.
+
+t-test /groups=ind(1 2) /var x.
+])
+AT_CHECK([pspp -o temporary.csv temporary.sps])
+AT_CHECK([cat temporary.csv], [0], [expout])
+AT_CLEANUP
+
+dnl This is an example from doc/tutorial.texi
+dnl So if the results of this have to be changed in any way,
+dnl make sure to update that file.
+AT_SETUP([T-TEST tutorial example])
+cp $top_srcdir/examples/physiology.sav .
+AT_DATA([t-test.sps], [dnl
+GET FILE='physiology.sav'.
+RECODE height (179 = SYSMIS).
+T-TEST GROUP=sex(0,1) /VARIABLES=height temperature.
+])
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+Height in millimeters ,Male,22,1796.49,49.71,10.60
+,Female,17,1610.77,25.43,6.17
+Internal body temperature in degrees Celcius,Male,22,36.68,1.95,.42
+,Female,18,37.43,1.61,.38
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+Height in millimeters ,Equal variances assumed,.97,.331,14.02,37.00,.000,185.72,13.24,158.88,212.55
+,Equal variances not assumed,,,15.15,32.71,.000,185.72,12.26,160.76,210.67
+Internal body temperature in degrees Celcius,Equal variances assumed,.31,.581,-1.31,38.00,.198,-.75,.57,-1.91,.41
+,Equal variances not assumed,,,-1.33,37.99,.190,-.75,.56,-1.89,.39
+])
+AT_CLEANUP
+
+dnl Tests for a bug which caused T-TEST to crash when given invalid syntax.
+AT_SETUP([T-TEST invalid syntax])
+AT_DATA([t-test.sps], [dnl
+DATA LIST LIST NOTABLE /id * a * .
+BEGIN DATA.
+1 3.5
+2 2.0
+3 2.0
+4 3.5
+5 3.0
+6 4.0
+END DATA.
+
+T-TEST /testval=2.0 .
+T-TEST /groups=id(3) .
+])
+AT_CHECK([pspp -O format=csv t-test.sps], [1], [dnl
+"t-test.sps:11.1-11.21: error: T-TEST: Required subcommand VARIABLES was not specified.
+ 11 | T-TEST /testval=2.0 .
+ | ^~~~~~~~~~~~~~~~~~~~~"
+
+"t-test.sps:12.1-12.22: error: T-TEST: Required subcommand VARIABLES was not specified.
+ 12 | T-TEST /groups=id(3) .
+ | ^~~~~~~~~~~~~~~~~~~~~~"
+])
+AT_CLEANUP
+
+dnl Tests for bug #11227, exhibited when the independent variable is a string.
+AT_SETUP([T-TEST string variable])
+AT_DATA([t-test.sps], [dnl
+data list list /ID * INDEP (a1) DEP1 * DEP2 *.
+begin data.
+1 'a' 1 3
+2 'a' 2 4
+3 'a' 2 4
+4 'a' 2 4
+5 'a' 3 5
+6 'b' 3 1
+7 'b' 4 2
+8 'b' 4 2
+9 'b' 4 2
+10 'b' 5 3
+11 'c' 2 2
+end data.
+
+
+t-test /GROUPS=indep('a','b') /var=dep1 dep2.
+])
+
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+ID,F8.0
+INDEP,A1
+DEP1,F8.0
+DEP2,F8.0
+
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+DEP1,a,5,2.00,.71,.32
+,b,5,4.00,.71,.32
+DEP2,a,5,4.00,.71,.32
+,b,5,2.00,.71,.32
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+DEP1,Equal variances assumed,.00,1.000,-4.47,8.00,.002,-2.00,.45,-3.03,-.97
+,Equal variances not assumed,,,-4.47,8.00,.002,-2.00,.45,-3.03,-.97
+DEP2,Equal variances assumed,.00,1.000,4.47,8.00,.002,2.00,.45,.97,3.03
+,Equal variances not assumed,,,4.47,8.00,.002,2.00,.45,.97,3.03
+])
+AT_CLEANUP
+
+AT_SETUP([T-TEST string variable, only one value])
+AT_DATA([t-test.sps], [dnl
+data list list notable /id * indep (a1) dep1 * dep2 *.
+begin data.
+1 'a' 1 3
+2 'a' 2 4
+3 'a' 2 4
+4 'a' 2 4
+5 'a' 3 5
+6 'b' 3 1
+7 'b' 4 2
+8 'b' 4 2
+9 'b' 4 2
+10 'b' 5 3
+11 'c' 2 2
+end data.
+
+
+t-test /GROUPS=indep('a') /var=dep1 dep2.
+])
+AT_CHECK([pspp -O format=csv t-test.sps], [1], [dnl
+"t-test.sps:17.16-17.25: error: T-TEST: When applying GROUPS to a string variable, two values must be specified.
+ 17 | t-test /GROUPS=indep('a') /var=dep1 dep2.
+ | ^~~~~~~~~~"
+])
+AT_CLEANUP
+
+dnl Tests for a bug which didn't properly compare string values.
+AT_SETUP([T-TEST string variable comparison bug])
+AT_DATA([t-test.sps], [dnl
+data list list /x * gv (a8).
+begin data.
+3 One
+2 One
+3 One
+2 One
+3 One
+4 Two
+3.5 Two
+3.0 Two
+end data.
+
+t-test group=gv('One', 'Two')
+ /variables = x.
+])
+
+AT_CHECK([pspp -o pspp.csv -o pspp.txt t-test.sps])
+AT_CHECK([cat pspp.csv], [0], [dnl
+Table: Reading free-form data from INLINE.
+Variable,Format
+x,F8.0
+gv,A8
+
+Table: Group Statistics
+,Group,N,Mean,Std. Deviation,S.E. Mean
+x,One,5,2.60,.55,.24
+,Two,3,3.50,.50,.29
+
+Table: Independent Samples Test
+,,Levene's Test for Equality of Variances,,T-Test for Equality of Means,,,,,,
+,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,95% Confidence Interval of the Difference,
+,,,,,,,,,Lower,Upper
+x,Equal variances assumed,1.13,.329,-2.32,6.00,.060,-.90,.39,-1.85,.05
+,Equal variances not assumed,,,-2.38,4.70,.067,-.90,.38,-1.89,.09
+])
+AT_CLEANUP
+
+
+
+dnl Tests for a bug assert failed when the group variables were not of either class
+AT_SETUP([T-TEST wrong group])
+AT_DATA([t-test-crs.sps], [dnl
+data list list /x * g *.
+begin data.
+1 2
+2 2
+3 2
+4 2
+5 2
+end data.
+
+t-test /variables = x group=g(1,3).
+])
+
+AT_CHECK([pspp t-test-crs.sps], [0],[ignore], [ignore])
+
+AT_CLEANUP
+
+
+
+dnl Tests for a bug assert failed when a non-number was passes as the p value
+AT_SETUP([T-TEST non number p value])
+AT_DATA([t.sps], [dnl
+data list list /age d_frage_1 weight height *.
+begin data.
+1 2 3 1
+4 5 6 2
+end data.
+
+T-TEST /VARIABLES=age weight height
+ /GROUPS=d_frage_1(1,0) /MISSING=ANALYSIS /CRITERIA=CIN(p.95).
+])
+
+AT_CHECK([pspp t.sps], [1],[ignore], [ignore])
+
+AT_CLEANUP
+
+
+
+dnl Another crash on invalid input
+AT_SETUP([T-TEST unterminated string - paired])
+AT_DATA([t.sps], [dnl
+data list list /id * a * b * c * d *.
+begin data.
+5 2.0 3.0 4.0 4.0
+3 1.0 2.0 5.1 3.9
+3 2.0 4.5 5.2(3.8
+4 2.0 4.5 5n3 3.7
+5 3.0 6.0 5.9 3.6
+6 3.4 6.0 5.9 .
+end data.
+
+
+t-test /MISSING=listwise /PAIRS a"b with c d (PA RED).
+]) dnl "
+
+AT_CHECK([pspp t.sps],[1],[ignore],[ignore])
+
+AT_CLEANUP
+
+AT_SETUP([T-TEST syntax errors])
+AT_DATA([t-test.sps], [dnl
+DATA LIST LIST NOTABLE/x y z * s(a10).
+T-TEST TESTVAL=**.
+T-TEST GROUPS=**.
+T-TEST GROUPS=x(**).
+T-TEST GROUPS=x(1,**).
+T-TEST GROUPS=x(1,2 **).
+T-TEST GROUPS=s('a').
+T-TEST VARIABLES=x y PAIRS.
+T-TEST PAIRS=**.
+T-TEST PAIRS=x WITH **.
+T-TEST PAIRS=x WITH y z (PAIRED).
+T-TEST PAIRS=x WITH y/VARIABLES.
+T-TEST VARIABLES=**.
+T-TEST MISSING=**.
+T-TEST CRITERIA=**.
+T-TEST CRITERIA=CIN**.
+T-TEST CRITERIA=CIN(**).
+T-TEST CRITERIA=CIN(1 **).
+T-TEST **.
+T-TEST MISSING=INCLUDE.
+T-TEST MISSING=INCLUDE/TESTVAL=1.
+])
+AT_CHECK([pspp -O format=csv t-test.sps], [1], [dnl
+"t-test.sps:2.16-2.17: error: T-TEST: Syntax error expecting number.
+ 2 | T-TEST TESTVAL=**.
+ | ^~"
+
+"t-test.sps:3.15-3.16: error: T-TEST: Syntax error expecting variable name.
+ 3 | T-TEST GROUPS=**.
+ | ^~"
+
+"t-test.sps:4.17-4.18: error: T-TEST: Syntax error expecting number.
+ 4 | T-TEST GROUPS=x(**).
+ | ^~"
+
+"t-test.sps:5.19-5.20: error: T-TEST: Syntax error expecting number.
+ 5 | T-TEST GROUPS=x(1,**).
+ | ^~"
+
+"t-test.sps:6.21-6.22: error: T-TEST: Syntax error expecting `)'.
+ 6 | T-TEST GROUPS=x(1,2 **).
+ | ^~"
+
+"t-test.sps:7.15-7.20: error: T-TEST: When applying GROUPS to a string variable, two values must be specified.
+ 7 | T-TEST GROUPS=s('a').
+ | ^~~~~~"
+
+"t-test.sps:8.22-8.26: error: T-TEST: VARIABLES subcommand may not be used with PAIRS.
+ 8 | T-TEST VARIABLES=x y PAIRS.
+ | ^~~~~"
+
+"t-test.sps:9.14-9.15: error: T-TEST: Syntax error expecting variable name.
+ 9 | T-TEST PAIRS=**.
+ | ^~"
+
+"t-test.sps:10.21-10.22: error: T-TEST: Syntax error expecting variable name.
+ 10 | T-TEST PAIRS=x WITH **.
+ | ^~"
+
+"t-test.sps:11.14-11.23: error: T-TEST: PAIRED was specified, but the number of variables preceding WITH (1) does not match the number following (2).
+ 11 | T-TEST PAIRS=x WITH y z (PAIRED).
+ | ^~~~~~~~~~"
+
+"t-test.sps:12.23-12.31: error: T-TEST: VARIABLES subcommand may not be used with PAIRS.
+ 12 | T-TEST PAIRS=x WITH y/VARIABLES.
+ | ^~~~~~~~~"
+
+"t-test.sps:13.18-13.19: error: T-TEST: Syntax error expecting variable name.
+ 13 | T-TEST VARIABLES=**.
+ | ^~"
+
+"t-test.sps:14.16-14.17: error: T-TEST: Syntax error expecting INCLUDE, EXCLUDE, LISTWISE, or ANALYSIS.
+ 14 | T-TEST MISSING=**.
+ | ^~"
+
+"t-test.sps:15.17-15.18: error: T-TEST: Syntax error expecting CIN or CI.
+ 15 | T-TEST CRITERIA=**.
+ | ^~"
+
+"t-test.sps:16.20-16.21: error: T-TEST: Syntax error expecting `('.
+ 16 | T-TEST CRITERIA=CIN**.
+ | ^~"
+
+"t-test.sps:17.21-17.22: error: T-TEST: Syntax error expecting number.
+ 17 | T-TEST CRITERIA=CIN(**).
+ | ^~"
+
+"t-test.sps:18.23-18.24: error: T-TEST: Syntax error expecting `)'.
+ 18 | T-TEST CRITERIA=CIN(1 **).
+ | ^~"
+
+"t-test.sps:19.8-19.9: error: T-TEST: Syntax error expecting TESTVAL, GROUPS, PAIRS, VARIABLES, MISSING, or CRITERIA.
+ 19 | T-TEST **.
+ | ^~"
+
+"t-test.sps:20: error: T-TEST: Exactly one of TESTVAL, GROUPS and PAIRS subcommands must be specified."
+
+"t-test.sps:21.1-21.33: error: T-TEST: Required subcommand VARIABLES was not specified.
+ 21 | T-TEST MISSING=INCLUDE/TESTVAL=1.
+ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
+])
+AT_CLEANUP
projects / pspp / blobdiff