Plot of Likert Questions by Scale

[zstatman]

I would like to produce a horizontal bar that shows a set of Likert question
responses in a stacked format. Thus, it would show the percentage of code 1
responses for each question, the % of code 2 responses for each question,
etc.

Tks,
WMB
Statistical Services

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[ViAnn Beadle]

You want one bar per question?

The simplest way to do this is to use VARSTOCASES so that each case has a
response value and an index value for the question. Something like this
should work:

*create some data.
input program.
loop #1=1 to 100.
do repeat q= q1 to q5.
compute q=trunc(uniform(6)).
end repeat.
end case.
end loop.
end file.
end input program.
execute.
*transpose vars to cases.
VARSTOCASES
  /ID=id
  /MAKE question FROM q1 q2 q3 q4 q5
  /INDEX=qindex(question)
  /NULL=KEEP.
* make the chart using chart builder.
* Chart Builder.
GGRAPH
  /GRAPHDATASET NAME="graphdataset" VARIABLES=qindex COUNT()[name="COUNT"]
question[LEVEL=NOMINAL]
    MISSING=LISTWISE REPORTMISSING=NO
  /GRAPHSPEC SOURCE=INLINE.
BEGIN GPL
  SOURCE: s=userSource(id("graphdataset"))
  DATA: qindex=col(source(s), name("qindex"), unit.category())
  DATA: COUNT=col(source(s), name("COUNT"))
  DATA: question=col(source(s), name("question"), unit.category())
  COORD: rect(dim(1,2), transpose())
  GUIDE: axis(dim(1), label("qindex"))
  GUIDE: axis(dim(2), label("Percent"))
  GUIDE: legend(aesthetic(aesthetic.color.interior), label("question"))
  SCALE: linear(dim(2), include(0))
  ELEMENT: interval.stack(position(summary.percent(qindex*COUNT,
base.coordinate(dim(1)))),
    color.interior(question), shape.interior(shape.square))
END GPL.
-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Statmanz
Sent: Monday, December 15, 2008 6:59 AM
To: [hidden email]
Subject: Plot of Likert Questions by Scale

I would like to produce a horizontal bar that shows a set of Likert question
responses in a stacked format. Thus, it would show the percentage of code 1
responses for each question, the % of code 2 responses for each question,
etc.

Tks,
WMB
Statistical Services

============
mailto: [hidden email]
http:\\home.earthlink.net\~info.statman
============

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD

=====================
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[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
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[zstatman]

Thanks ViAnn, after flipping the bar and some cosmetic editing looks good.

W

-----Original Message-----
From: ViAnn Beadle [mailto:[hidden email]]
Sent: Monday, December 15, 2008 9:44 AM
To: 'Statmanz'; [hidden email]
Subject: RE: Plot of Likert Questions by Scale

You want one bar per question?

The simplest way to do this is to use VARSTOCASES so that each case has a
response value and an index value for the question. Something like this
should work:

*create some data.
input program.
loop #1=1 to 100.
do repeat q= q1 to q5.
compute q=trunc(uniform(6)).
end repeat.
end case.
end loop.
end file.
end input program.
execute.
*transpose vars to cases.
VARSTOCASES
  /ID=id
  /MAKE question FROM q1 q2 q3 q4 q5
  /INDEX=qindex(question)
  /NULL=KEEP.
* make the chart using chart builder.
* Chart Builder.
GGRAPH
  /GRAPHDATASET NAME="graphdataset" VARIABLES=qindex COUNT()[name="COUNT"]
question[LEVEL=NOMINAL]
    MISSING=LISTWISE REPORTMISSING=NO
  /GRAPHSPEC SOURCE=INLINE.
BEGIN GPL
  SOURCE: s=userSource(id("graphdataset"))
  DATA: qindex=col(source(s), name("qindex"), unit.category())
  DATA: COUNT=col(source(s), name("COUNT"))
  DATA: question=col(source(s), name("question"), unit.category())
  COORD: rect(dim(1,2), transpose())
  GUIDE: axis(dim(1), label("qindex"))
  GUIDE: axis(dim(2), label("Percent"))
  GUIDE: legend(aesthetic(aesthetic.color.interior), label("question"))
  SCALE: linear(dim(2), include(0))
  ELEMENT: interval.stack(position(summary.percent(qindex*COUNT,
base.coordinate(dim(1)))),
    color.interior(question), shape.interior(shape.square)) END GPL.
-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Statmanz
Sent: Monday, December 15, 2008 6:59 AM
To: [hidden email]
Subject: Plot of Likert Questions by Scale

I would like to produce a horizontal bar that shows a set of Likert question
responses in a stacked format. Thus, it would show the percentage of code 1
responses for each question, the % of code 2 responses for each question,
etc.

Tks,
WMB
Statistical Services

============
mailto: [hidden email]
http:\\home.earthlink.net\~info.statman
============

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command SIGNOFF SPSSX-L For a list of
commands to manage subscriptions, send the command INFO REFCARD

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD