Re: [office] Proposal: Error bar category standard-error

[robert_weir@us.ibm.com]

"Standard
error (standard deviation of the mean) of a data series assuming an equal
distribution"

I believe "assuming a normal distribution"
is the typical wording.  In that case the standard error =  StandardDeviation/Sqrt(N)

-Rob
___________________________

Rob Weir
Software Architect
Workplace, Portal and Collaboration Software
IBM Software Group

email: robert_weir@us.ibm.com
phone: 1-978-399-7122
blog: http://www.robweir.com/blog/

Michael Brauer - Sun Germany - ham02 - Hamburg <Michael.Brauer@Sun.COM>
Sent by: Michael.Brauer@Sun.COM

02/01/2008 07:51 AM

To	office@lists.oasis-open.org
cc
Subject	[office] Proposal: Error bar category standard-error

Hi,

while implementing the ODF 1.2 enhancements for the error category of 
business charts, OOo Chart's developer Björn Milcke noticed that one 
value in the "choice" for the chart:error-category is missing:
the 
standard-error. It's a reasonable value, that some applications do 
support already.

He therefore proposed the following small enhancement:

In chapter "16.33.2 Error Category" add the following value to
the 
choices for the error-category:

[..]

* Standard error (standard deviation of the mean) of a data series
  assuming an equal distribution

[..]


<define name="style-chart-properties-attlist" combine="interleave">
<optional>
   <attribute name="chart:error-category" a:defaultValue="none">
     <choice>
        <value>none</value>
        <value>variance</value>
        <value>standard-deviation</value>
        <value>percentage</value>
        <value>error-margin</value>
        <value>constant</value>
* new * <value>standard-error</value>
        <value>cell-range</value>
     </choice>
   </attribute>
</optional>
</define>

Best regards

Michael

-- 
Michael Brauer, Technical Architect Software Engineering
StarOffice/OpenOffice.org
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