SW318 Social Work Statistics Slide 1

1
Using SPSS for Graphic Presentation

• Various Graphics in SPSS
• Pie chart
• Bar chart
• Histogram
• Area chart
• Line chart
• Scatter plot
• Various Options for Graphics in SPSS
• Simple graphics Use Chart option in Analyze
  Descriptive Statistics Frequencies
• Complex graphics Use Graphs in Menu bar

2
Histogram in SPSS (1)
Suppose we want to create a histogram showing
survey respondents age age distribution. We
start it with opening Frequencies window by
clicking Analyze Descriptive Statistics
Frequencies.
3
Histogram in SPSS (2)
After you move the variable of interest age to
the variable box, click on Charts button at the
bottom of the window.
4
Histogram in SPSS (3)
Then, a new window pops up. Here you click on
Histograms in Chart Type box. Now click on
Continue button to finish the Charts setting and
OK button to see the Output.
5
Histogram in SPSS (4)
Histograms are useful to present overall
distribution pattern of interval level variables,
such as age age.
6
Pie Chart in SPSS (1)
Suppose we want to create a pie chart showing
survey respondents marital status distribution.
We start it with opening Frequencies window by
clicking Analyze Descriptive Statistics
Frequencies.
7
Pie Chart in SPSS (2)
After you move the variable of interest marital
to the variable box, click on Charts button at
the bottom of the window.
8
Pie Chart in SPSS (3)
Then a new window pops up. Here you click on Pie
charts in Chart Type box and Frequencies in Chart
Values box. Now click on Continue button to
finish the Charts setting and OK button to see
the Output.
9
Pie Chart in SPSS (4)
This is the output window you will see. The first
two tables are the same Frequencies tables as you
saw in the last class. But, now you have a pie
chart that graphically shows the distribution of
the survey respondents marital status marital.
10
Pie Chart in SPSS (5)
In this chart, however, there is no exact
frequencies or percentage information which might
help the audience better to understand the
distribution of marital status. Of course we can
add those info onto this chart. It starts with
opening a SPSS Chart Editor window by
double-clicking the chart.
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Pie Chart in SPSS (6)
First, click on Chart Options in the window.
12
Pie Chart in SPSS (7)
In the Pie Options window, you click on Values of
Labels box to add frequency or Percents to add
percent value onto the chart (You can choose
either or both of them). Then, click on OK
button.
13
Pie Chart in SPSS (8)
Now, you can see the percentage value for each
category is added under each value label.
14
Bar Chart in SPSS (1)
Follow the direction of Pie Chart in SPSS slide 1
through 3 but select Bar charts option at this
time. Also, select whether you use frequency
values or percentage values for chart values by
clicking one in the Chart Values box. Then, click
on Continue and OK buttons.
15
Bar Chart in SPSS (2)
Since we selected Frequencies of the Chart
Values options in the previous slide, this bar
chart presents frequency value for each category
of marital status.
16
Clustered Bar Chart in SPSS (1)
Assuming you want to present how the
distributions of marital status marital of the
survey respondents are different by gender sex
group. Then, you may need this type of clustered
bar chart.
17
Clustered Bar Chart in SPSS (2)
For this kind of complex chart, we use Graphs
menu in the menu bar. Select Graphs Bar to open
a bar chart window.
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Clustered Bar Chart in SPSS (3)
Select Clustered in the middle of three graph
options and Summaries for groups for cases in
the Data in Chart Area box. Then click on Define
button.
19
Clustered Bar Chart in SPSS (4)
First, select which value you want for bars to
represent in the chart among the options of Bars
Represent box. To select frequencies of each
category, choose of cases.
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Clustered Bar Chart in SPSS (5)
Select marital from the list of variables on
the left and move to the Category Axis text box
by clicking the triangle button in between. Also,
select and move the variable sex to the Define
Clusters by box. Now click on OK button.
21
Clustered Bar Chart in SPSS (6)
Since we selected of cases in the Bars
represent options, bars in the chart represent
percent values for marital status of the survey
respondents. Also, as shown in the legend, red
bars are for male respondents marital status
whereas green bars are for female. By double
clicking the chart, you can open the Graph Editor
window.
22
Clustered Bar Chart in SPSS (7)
You can add exact percent value of each bar using
Format Bar Label Style in the SPSS Chart Editor
window or simply clicking icon from the icon bar.
23
Clustered Bar Chart in SPSS (8)
You can also add a title for graph and/or
footnotes in the SPSS Chart Editor window. This
slide shows a Clustered Bar Chart with value
labels, titles, and footnote.
24
Stacked Bar Chart in SPSS (1)
If you selected Stacked instead of Clustered
in slide 18, you would have a Stacked Bar Chart
shown in the next slide.
25
Stacked Bar Chart in SPSS (2)