Happy Pi Day, 2021

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Happy Pi Day, 2021

Bruce Weaver
Administrator
DATA LIST LIST / junk(F1).
BEGIN DATA
1
END DATA.
COMPUTE pi = 4*ARTAN(1).
FORMATS pi (F16.14).
LIST pi.

 
              pi
 
3.14159265358979
 
 
Number of cases read:  1    Number of cases listed:  1

https://www.ibm.com/support/pages/using-value-pi-spss-transformation-commands




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Re: Happy Pi Day, 2021

Jon Peck
begin program python3. 
from mpmath import mp 
mp.dps=1000 
print(mp.pi) 
end program. 

3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456 485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733 
624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499 
99998372978049951059731732816096318595024459455346908302642522308253344685035261931188171010003137838752886587533208381420617177669147303598253490428755468731159562863882353787593751957781857780532171226806613001927876611195909216420199

On Sun, Mar 14, 2021 at 8:28 AM Bruce Weaver <[hidden email]> wrote:
DATA LIST LIST / junk(F1).
BEGIN DATA
1
END DATA.
COMPUTE pi = 4*ARTAN(1).
FORMATS pi (F16.14).
LIST pi.


              pi

3.14159265358979


Number of cases read:  1    Number of cases listed:  1

https://www.ibm.com/support/pages/using-value-pi-spss-transformation-commands




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Bruce Weaver
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Jon K Peck
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Re: Happy Pi Day, 2021

Bruce Weaver
Administrator
Show off!  ;-)  


Jon Peck wrote

> begin program python3.
> from mpmath import mp
> mp.dps=1000
> print(mp.pi)
> end program.
>
> 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456
> 485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733
> 624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499
> 99998372978049951059731732816096318595024459455346908302642522308253344685035261931188171010003137838752886587533208381420617177669147303598253490428755468731159562863882353787593751957781857780532171226806613001927876611195909216420199
>
> On Sun, Mar 14, 2021 at 8:28 AM Bruce Weaver &lt;

> bruce.weaver@

> &gt;
> wrote:
>
>> DATA LIST LIST / junk(F1).
>> BEGIN DATA
>> 1
>> END DATA.
>> COMPUTE pi = 4*ARTAN(1).
>> FORMATS pi (F16.14).
>> LIST pi.
>>
>>
>>               pi
>>
>> 3.14159265358979
>>
>>
>> Number of cases read:  1    Number of cases listed:  1
>>
>>
>> https://www.ibm.com/support/pages/using-value-pi-spss-transformation-commands
>>
>>
>>
>>
>> -----
>> --
>> Bruce Weaver
>>

> bweaver@

>> http://sites.google.com/a/lakeheadu.ca/bweaver/
>>
>> "When all else fails, RTFM."
>>
>> NOTE: My Hotmail account is not monitored regularly.
>> To send me an e-mail, please use the address shown above.
>>
>> --
>> Sent from: http://spssx-discussion.1045642.n5.nabble.com/
>>
>> =====================
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>>

> LISTSERV@.UGA

>  (not to SPSSX-L), with no body text except the
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>>
>
>
> --
> Jon K Peck

> jkpeck@

>
> =====================
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-----
--
Bruce Weaver
[hidden email]
http://sites.google.com/a/lakeheadu.ca/bweaver/

"When all else fails, RTFM."

NOTE: My Hotmail account is not monitored regularly.
To send me an e-mail, please use the address shown above.

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Bruce Weaver
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"When all else fails, RTFM."

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Re: Happy Pi Day, 2021

Andy W
Well Bruce, at least your solution is good enough for government work,
https://www.jpl.nasa.gov/edu/news/2016/3/16/how-many-decimals-of-pi-do-we-really-need/.



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Andy W
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Re: Happy Pi Day, 2021

Jon Peck
What the article doesn't mention - and this is a more practical consideration - is the accuracy of the modeling data that pi might be applied to.  Most measurements in practice are probably not good to more than four or five significant figures, if that, at least in the social sciences.  I used to give students as an exercise to add a random digit at the accuracy limit and see how it affected their model estimates.  Throw in a little multicollinearity and there you are.

See the famous Morgenstern book  A Perspective on the Accuracy of Economic Observations on JSTOR  and some updates (behind a paywall, unfortunately)

On Mon, Mar 15, 2021 at 9:38 AM Andy W <[hidden email]> wrote:
Well Bruce, at least your solution is good enough for government work,
https://www.jpl.nasa.gov/edu/news/2016/3/16/how-many-decimals-of-pi-do-we-really-need/.



-----
Andy W
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http://andrewpwheeler.wordpress.com/
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Jon K Peck
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===================== 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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Re: Happy Pi Day, 2021

Bruce Weaver
Administrator
“Did you know that 87.166253% of all statistics claim a precision of results
that is not justified by the method employed?”
— Anonymous

https://www.wyliecomm.com/writing-tips/readability/how-to-write-about-statistics/quotes-on-writing-with-statistics/



Jon Peck wrote

> What the article doesn't mention - and this is a more practical
> consideration - is the accuracy of the modeling data that pi might be
> applied to.  Most measurements in practice are probably not good to more
> than four or five significant figures, if that, at least in the social
> sciences.  I used to give students as an exercise to add a random digit at
> the accuracy limit and see how it affected their model estimates.  Throw
> in
> a little multicollinearity and there you are.
>
> See the famous Morgenstern book  A Perspective on the Accuracy of Economic
> Observations on JSTOR &lt;https://www.jstor.org/stable/1403345?seq=1&gt; 
> and
> some updates (behind a paywall, unfortunately)
>
> On Mon, Mar 15, 2021 at 9:38 AM Andy W &lt;

> apwheele@

> &gt; wrote:
>
>> Well Bruce, at least your solution is good enough for government work,
>>
>> https://www.jpl.nasa.gov/edu/news/2016/3/16/how-many-decimals-of-pi-do-we-really-need/
>> .
>>
>>
>>
>> -----
>> Andy W
>>

> apwheele@

>> http://andrewpwheeler.wordpress.com/
>> --
>> Sent from: http://spssx-discussion.1045642.n5.nabble.com/
>>
>> =====================
>> To manage your subscription to SPSSX-L, send a message to
>>

> LISTSERV@.UGA

>  (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
>>
>
>
> --
> Jon K Peck

> jkpeck@

>
> =====================
> To manage your subscription to SPSSX-L, send a message to

> LISTSERV@.UGA

>  (not to SPSSX-L), with no body text except the
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> INFO REFCARD





-----
--
Bruce Weaver
[hidden email]
http://sites.google.com/a/lakeheadu.ca/bweaver/

"When all else fails, RTFM."

NOTE: My Hotmail account is not monitored regularly.
To send me an e-mail, please use the address shown above.

--
Sent from: http://spssx-discussion.1045642.n5.nabble.com/

=====================
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--
Bruce Weaver
bweaver@lakeheadu.ca
http://sites.google.com/a/lakeheadu.ca/bweaver/

"When all else fails, RTFM."

NOTE: My Hotmail account is not monitored regularly.
To send me an e-mail, please use the address shown above.
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Re: Happy Pi Day, 2021

Art Kendall
From my undergrad days as a philosophy major.
"It is the mark of an educated man to look for precision in each class of
things just so far as the nature of the subject admits."
/Nicomachean Ethics/  Aristotle (circa 350 B.C.E.)




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Art Kendall
Social Research Consultants
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Art Kendall
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Re: Happy Pi Day, 2021

John F Hall

Since we're on (Covid) memory lane:

"I'm playing . . all the right notes, but not necessarily in the right order!" as Eric Morecambe famously declared to André Prévin in the brilliant 1971 sketch Grieg's Piano Concerto (8'04'').

https://www.youtube.com/watch?v=r7yb-JncKow (For some reason Youtube thinks my computer is still in France: if you can't  get round the BBC copyright block, it's available on https://www.dailymotion.com/video/xds7am  ) .

 

-----Original Message-----
From: SPSSX(r) Discussion <[hidden email]> On Behalf Of Art Kendall
Sent: 15 March 2021 18:35
To: [hidden email]
Subject: Re: Happy Pi Day, 2021

 

From my undergrad days as a philosophy major.

"It is the mark of an educated man to look for precision in each class of things just so far as the nature of the subject admits."

/Nicomachean Ethics/  Aristotle (circa 350 B.C.E.)

 

 

 

 

-----

Art Kendall

Social Research Consultants

--

Sent from: http://spssx-discussion.1045642.n5.nabble.com/

 

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===================== 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