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Calculating Covariance and Standard Deviation ??

 
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seevignesh

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Joined: 08 Sep 2008
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PostPosted: Sun Oct 05, 2008 6:39 pm    Post subject: Calculating Covariance and Standard Deviation ??
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Hello everybody.
I am doing a project in Cobol for stock market..
For that I need to know whether there is any Intrinsic function to calculate that..? Or if You know any logic , pls tell me...

cov(x,y)=E(xy) - E(x) E(y)
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Robert Sample

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PostPosted: Sun Oct 05, 2008 8:10 pm    Post subject:
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Did you check the Language Reference? There's a Standard Deviation formula but covariance you'll have to calculate yourself.
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seevignesh

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PostPosted: Sun Oct 05, 2008 8:22 pm    Post subject:
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thank you for the reply
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kavi1983

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PostPosted: Wed Oct 08, 2008 11:18 am    Post subject: Reply to: Calculating Covariance and Standard Deviation ??
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Am not able to understand what is mean by language reference . Please let me knw icon_sad.gif
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enrico-sorichetti

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PostPosted: Wed Oct 08, 2008 12:36 pm    Post subject: Reply to: Calculating Covariance and Standard Deviation ??
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Quote:
Am not able to understand what is mean by language reference . Please let me knw


in general a product not overly complicated comes with three manuals
- installation and customization ( the name tells )
- user guide ( general considerations and advices on the use )
- user reference ( detailed explanation of the - for example - commands, keyword, syntax )

and the word manual is usually implied when referring to them
and since cobol is a programming language the shortcut is "language reference"
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dick scherrer

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Joined: 23 Nov 2006
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PostPosted: Wed Oct 08, 2008 1:13 pm    Post subject:
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Hello,

Quote:
Am not able to understand what is mean by language reference
At the top of the page is a link to "IBM Manuals". You should see the Language Reference manual for your version of COBOL - just click on it.
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kavi1983

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PostPosted: Wed Oct 08, 2008 1:16 pm    Post subject:
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Thanks a lot for all your responses . icon_biggrin.gif
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