Histogram Grouped by Gender

[Justin Meyer-3]

Hi fellow SPSSlisters,

 

I'm trying to create a histogram that shows the number of students who
received each score on a standardized test. The problem is that I want
to show how many males received each score and how many females received
each score side by side on the same graph. Specifically, I want the
order to be like this: number of males who scored a one, number of
females who scored a one, number of males who scored a two, number of
females who scored a two, etc. The closest I have come is to use the
GUI, go to the Groups/ Point ID tab, check Grouping/stacking variable,
and use gender as the grouping/stacking variable. This works, but it
stacks the bars on top of one another when I want them side by side. The
syntax from this graph is below.

 

I also tried to use the bar graph instead of histogram and I was able to
get the bars side by side, but then I have a bar graph, not a histogram.

 

I hope all of this is clear. Thanks for any help you can provide.

 

* Chart Builder.

GGRAPH

  /GRAPHDATASET NAME="graphdataset" VARIABLES=SS1 S08GenderCombined

  MISSING=LISTWISE REPORTMISSING=NO

  /GRAPHSPEC SOURCE=INLINE.

BEGIN GPL

 SOURCE: s=userSource(id("graphdataset"))

 DATA: SS1=col(source(s), name("SS1"))

 DATA: S08GenderCombined=col(source(s), name("S08GenderCombined"),

  unit.category())

 GUIDE: axis(dim(1), label("SS1"))

 GUIDE: axis(dim(2), label("Frequency"))

 GUIDE: legend(aesthetic(aesthetic.color.interior), label("S08Gender
with ",

  "Missing Filled from Fall"))

 SCALE: cat(aesthetic(aesthetic.color.interior))

 ELEMENT: interval.stack(position(summary.count(bin.rect(SS1))),

  color.interior(S08GenderCombined), shape.interior(shape.square))

END GPL.

 

 

____________________________________

Justin Meyer

Researcher

Rowland Reading Foundation

1 South Pinckney Street, Suite 324

Madison, WI  53703

phone: [phone]  fax: [phone]

www.rowlandreading.org <http://www.rowlandreading.org/>

____________________________________

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[hidden email] (not to SPSSX-L), with no body text except the
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[ViAnn Beadle]

Theoretically there is no such thing as a grouped histogram. In a histogram
the X axis is scale, so you can't have two bin centers with equal values
side-by-side. They have to be in the same location on that scale. The most
effective way of showing the differences between males and females is to
overlay the two histograms. When one histogram is overlaid on another, there
is a high probability that one bar will completely occlude another bar. The
way to solve this problem is to make the bars a bit transparent. Here's the
way to do that using an the Employee Data.sav sample file:

GGRAPH
  /GRAPHDATASET NAME="graphdataset" VARIABLES=salary gender MISSING=LISTWISE
REPORTMISSING=NO
  /GRAPHSPEC SOURCE=INLINE.
BEGIN GPL
  SOURCE: s=userSource(id("graphdataset"))
  DATA: salary=col(source(s), name("salary"))
  DATA: gender=col(source(s), name("gender"), unit.category())
  GUIDE: axis(dim(1), label("Current Salary"))
  GUIDE: axis(dim(2), label("Frequency"))
  GUIDE: legend(aesthetic(aesthetic.color.interior), label("Gender"))
  SCALE: cat(aesthetic(aesthetic.color.interior), include("f", "m"))
  ELEMENT: interval(position(summary.count(bin.rect(salary))),
color.interior(gender),
    shape.interior(shape.square), transparency(transparency.".50"))
END GPL.

This syntax was generated with chart builder and modified as follows:

The stack modifier is removed from the interval function.
The transparency function is added to the ELEMENT statement specifying 50%
transparency.

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Justin Meyer
Sent: Monday, October 13, 2008 3:35 PM
To: [hidden email]
Subject: Histogram Grouped by Gender

Hi fellow SPSSlisters,



I'm trying to create a histogram that shows the number of students who
received each score on a standardized test. The problem is that I want
to show how many males received each score and how many females received
each score side by side on the same graph. Specifically, I want the
order to be like this: number of males who scored a one, number of
females who scored a one, number of males who scored a two, number of
females who scored a two, etc. The closest I have come is to use the
GUI, go to the Groups/ Point ID tab, check Grouping/stacking variable,
and use gender as the grouping/stacking variable. This works, but it
stacks the bars on top of one another when I want them side by side. The
syntax from this graph is below.



I also tried to use the bar graph instead of histogram and I was able to
get the bars side by side, but then I have a bar graph, not a histogram.



I hope all of this is clear. Thanks for any help you can provide.



* Chart Builder.

GGRAPH

  /GRAPHDATASET NAME="graphdataset" VARIABLES=SS1 S08GenderCombined

  MISSING=LISTWISE REPORTMISSING=NO

  /GRAPHSPEC SOURCE=INLINE.

BEGIN GPL

 SOURCE: s=userSource(id("graphdataset"))

 DATA: SS1=col(source(s), name("SS1"))

 DATA: S08GenderCombined=col(source(s), name("S08GenderCombined"),

  unit.category())

 GUIDE: axis(dim(1), label("SS1"))

 GUIDE: axis(dim(2), label("Frequency"))

 GUIDE: legend(aesthetic(aesthetic.color.interior), label("S08Gender
with ",

  "Missing Filled from Fall"))

 SCALE: cat(aesthetic(aesthetic.color.interior))

 ELEMENT: interval.stack(position(summary.count(bin.rect(SS1))),

  color.interior(S08GenderCombined), shape.interior(shape.square))

END GPL.





____________________________________

Justin Meyer

Researcher

Rowland Reading Foundation

1 South Pinckney Street, Suite 324

Madison, WI  53703

phone: [phone]  fax: [phone]

www.rowlandreading.org <http://www.rowlandreading.org/>

____________________________________

=======
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