Download - Part 4 Syntax or point-and-click?
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Part 4Syntax or
point-and-click?
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British Social Attitudes 1986 Q.114, page 43b
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Open blank data file
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Open a new syntax file and write:
title 'Page 43b of BSA 1986'.data list
file 'f:bsa86.dat' records 23
/15 v1508 8-9 v1510 10 v1511 11 v1512 12-13.
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Page 43b of BSA 1986
Data List will read 23 records from F:\bsa86.dat
Variable Rec Start End Format
V1508 15 8 9 F2.0
V1510 15 10 10 F1.0
V1511 15 11 11 F1.0
V1512 15 12 13 F2.0
SPSS reports how data will be read
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Data editor fills Name Type Width and Decimals
columns
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var labels v1508 'Q105a Household size‘ v1510 'Q105b Marital status‘ v1511 'Q106a Sex of respondent‘ v1512 'Q106b Age of respondent last birthday'.
value labels v1510 1 'Married‘ 2 'Living together‘ 3 'Sep or div‘ 4 'Widowed‘ 5 'Not married' 8 'DK' 9 'N/A‘ /v1511 1 'Men' 2 'Women'.
save out 'f:page43b.sav'.
Now write:
missing values v1508 v1512 (98,99) v1510 (8,9).
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Data editor fillsMissing column
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and Label and Values columns
page43b.sav has also been saved to drive f:
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Adjust column widths to see what you've got
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What's in the file?
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Utilities… Variableslets you slide up and down, but that's all
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Utilities… File info.. sends (too much) file information to output
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What point-and-click
can’t do
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display.
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display labels.
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display variables.
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V2018 V2019 V2020 V2021 V2022 V2023 2 2 4 4 4 4 4 4 4 4 4 4 1 2 3 4 4 3 1 2 3 2 4 3 2 2 3 8 4 8 Number of cases read: 5 Number of cases listed: 5
list
list v2018 to v2023 /cases 5.
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A useful trick
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Using COMPUTE to generate groups
• Instead of using IF or DO IF… END IF…
• Use compute and recode
• Check frequencies• Run crosstab• Compute newvar=var1*10 + var2• Recode into desired groups
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Bloomsbury and Islington Health and Lifestyle survey 1988
freq var v670 v715.
cro v715 by v670.
Check frequencies and run a crosstab with:
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V670 RESPONSIBLE FOR CHILDREN
432 30.6 30.6 30.6
953 67.5 67.5 98.2
26 1.8 1.8 100.0
1411 100.0 100.0
1 Yes
2 No
3
Total
ValidFrequency Percent Valid Percent
CumulativePercent
V715 MARITAL STATUS
526 37.3 37.5 37.5
467 33.1 33.3 70.8
73 5.2 5.2 76.0
50 3.5 3.6 79.5
122 8.6 8.7 88.2
160 11.3 11.4 99.6
5 .4 .4 100.0
1403 99.4 100.0
8 .6
1411 100.0
1 SINGLE
2 MARRIED
3 COHABITING
4 SEPARATED
5 DIVORCED
6 WIDOWED
7 OTHER
Total
Valid
SystemMissing
Total
Frequency Percent Valid PercentCumulative
Percent
Frequency count for component variables
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Intermediate crosstab
V715 MARITAL STATUS * V670 RESPONSIBLE FOR CHILDREN Crosstabulation
Count
88 422 16 526
234 228 5 467
30 43 73
23 27 50
46 75 1 122
10 147 3 160
5 5
431 947 25 1403
1 SINGLE
2 MARRIED
3 COHABITING
4 SEPARATED
5 DIVORCED
6 WIDOWED
7 OTHER
V715 MARITALSTATUS
Total
1 Yes 2 No 3
V670 RESPONSIBLE FORCHILDREN
Total
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Create new variable with:
compute famstat=v670*10+v715.recode famstat
(21 24 25 26=1)(22 23=2)(11 14 15 16=3)(12 13=4)(else=sysmis).
value labels famstat 1 'Single: no kids'
2 'Couple: no kids' 3 'Single: + kids' 4 'Couple: + kids'.
freq var famstat.
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FAMSTAT
671 47.6 48.9 48.9
271 19.2 19.7 68.6
167 11.8 12.2 80.8
264 18.7 19.2 100.0
1373 97.3 100.0
38 2.7
1411 100.0
1 Single: no kids
2 Couple: no kids
3 Single: + kids
4 Couple: + kids
Total
Valid
SystemMissing
Total
Frequency Percent Valid PercentCumulative
Percent
Frequency count for new variable
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Another useful trick
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Using COMPUTE to recode
• To reverse values on items in a scale• Add 1 to the highest code value• Subtract the item value from this figure
• eg: Agree – Disagree scale coded 1-5• Subtracting the item value from 6 reverses it
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And one more
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Using MEANS to get %
• Choose a value or values to investigate
• Recode these to 100 and everything else to zero
• Run MEANS
• The figures are percentages and the row totals are the base n
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…and now
Let Battle Begin!