Date: Fri, 11 Jan 2008 16:26:12 +0100
Reply-To: la volta statistics <schmidhauser@lavolta.ch>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: la volta statistics <schmidhauser@lavolta.ch>
Subject: AW: Simple Scatterplot
In-Reply-To: <14756193.post@talk.nabble.com>
Content-Type: text/plain; charset="US-ASCII"
Hi Fred
I am getting the same result as you, using the example Jason Burke provided.
However, if you change the format of the time variable such as:
FORMAT date_time (TIME8).
then the points appear in the correct position in the chart, -Only the date
is then not shown in the x-axis. I havn't figure out so far, how to format
the x-axis in a way that it provides the date an the time when the data
format in the data sheet is set to TIME8.
I am using SPSS 15 and the varaible date_time is set to scale.
Christian
-----Ursprungliche Nachricht-----
Von: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU]Im Auftrag von
Fred Grehl
Gesendet: Freitag, 11. Januar 2008 15:22
An: SPSSX-L@LISTSERV.UGA.EDU
Betreff: Re: Simple Scatterplot
Hi Jason,
Jason Burke wrote:
>
> Hi Fred,
>
> I am using SPSS 16 and here is an example that works nicely for me,
> using the sample SPSS data file called Employee Data:
>
>
> COMPUTE date_time=$TIME.
> COMPUTE date_time=date_time + RV.NORMAL(0,36000) .
> FORMAT date_time (DATETIME20) .
>
> GGRAPH
> /GRAPHDATASET NAME="data" VARIABLES=date_time jobcat
> /GRAPHSPEC SOURCE=INLINE.
> BEGIN GPL
> SOURCE: s=userSource(id("data"))
> DATA: date_time=col(source(s), name("date_time"))
> DATA: jobcat=col(source(s), name("jobcat"), unit.category())
> ELEMENT: point(position(date_time*jobcat))
> GUIDE: axis(dim(1), label("Incident Date"))
> GUIDE: axis(dim(2), label("Job Class"))
> SCALE: cat(dim(2), include("1", "2", "3"))
> END GPL .
>
This example shows the same strange result.
Even when changing to a numeric variable on the second axis the problem
still persists.
Example:
Variable: ID, Type: Numeric, Measure: Scale
Variable: Time, Type: Date, Measure: Scale
ID; Time
2.0; 24-Dec-2007 10:48
1.0; 24-Dec-2007 10:49
1.0; 24-Dec-2007 10:49
1.0; 24-Dec-2007 11:15
1.0; 24-Dec-2007 10:49
1.0; 24-Dec-2007 10:50
2.0; 25-Dec-2007 08:50
1.0; 25-Dec-2007 08:51
The result:
http://fdahl.de/f1.png
Jason Burke wrote:
>
> The things that may causing an undesired result is the range on the
> date-time axis. The smaller the range, the greater the detail that is
> revealed in the scale.
>
How to change the scale on a time axis?
Using ChartEditor i cannot specify a period of time as major increment,
for example so that a major tick appears every 5 minutes.
Thanks for help,
Fred
Jason Burke wrote:
>
> On 1/11/08, leChef1001 <leChef1001@web.de> wrote:
>> Hi all,
>>
>> i'm using spss 16 and would like to plot a scatterplot with a scale time
>> variable (Example: 24-Dec-07 10:48) on the first axis.
>> Each piont of time maps to a specific corresponding string which is on
>> the
>> second axis.
>>
>> When using ChartBuilder the resulting scatterplot only displays the
>> plotted
>> pionts at 24-Dec-07 00:00, 25-Dec-07 00:00 and so on. All points of time
>> between are also plotted at these piont of times.
>> For example
>> 24-Dec-07 10:48, 24-Dec-07 17:48 is plotted at 25-Dec-07 00:00
>> and
>> 25-Dec-07 08:12 is also plottet at 25-Dec-07 00:00.
>>
>> I just want each point plotted at the point of time it occurs.
>>
>> Please help.
>>
>> Thanks in advance,
>> Fred
>
>
--
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