(r17) CodingData < MH

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---+ Coding Data
%ABSTRACT%
Repository for Coding Data and comments about working up the data for analysis.
   * [[University Chicago School Mathematics Project Data][UCSMP]] [[University Chicago School Mathematics Project Data]]
      * UCSMP_Topic_vs_Time: <br />
     <img src="%ATTACHURLPATH%/UCSMP_Topic_vs_Time.png" alt="UCSMP_Topic_vs_Time.png" width='90%' />
   *  [[Core Plus Data][CPMP]]  [[Core Plus Data]]
%ENDABSTRACT%

---++ Comments
%COMMENT{ type="below"}%
   * Dick - I just uploaded the updated UCSMP file. I&#39;ll be in touch soon. -- Main.GabrielDobbs - 18 Nov 2009
   * UCSMP coding errors ch 1-8 have been corrected in =FINALS_UCSMP.ods= Chapters 9-13 need to be added in from =UCSMP_Algebra_Ch._1-13.zip=  -- Main.DickFurnas - 17 Nov 2009
   * I have uploaded coding for the entire UCSMP Algebra book (Chapters 1-13).  Looking forward to seeing the analysis! -- Main.MaryAnnHuntley - 17 Nov 2009
   * The reference [[University Chicago School Mathematics Project Data]] which Gabe compiled into a master spreadsheet. The TWiki page is not pretty, but functional in the sense that it can be easily searched and the revision control allows for finding changes going forward. -- Main.DickFurnas - 06 Nov 2009
   * The reference [[Core Plus Data]] which Gabe compiled into a master spreadsheet. The TWiki page is not pretty, but functional in the sense that it can be easily searched and the revision control allows for finding changes going forward. -- Main.DickFurnas - 06 Nov 2009
   * The Core plus data looks great! I just posted the combined UCSMP spreadsheet. It looks to be in the same format as the Core plus data, so hopefully we can apply the formulas you were working on yesterday. -- Main.GabrielDobbs - 03 Nov 2009
   * I separated out Book as referenced in the files from ISBN since in doing some searching and reading about ISBN numbers, they can be messier than I had hoped. I *thought* it true that an ISBN number uniquely identifies a book, edition, and likely pagination, but I&#39;m no longer so sure. It turns out to be discouraged as an identifier for a bibliographic reference. -- Main.DickFurnas - 03 Nov 2009
   * =FINALS_Glencoe.ods= attached. Has nearly everything parsed out into separate columns. *Missing* is file name and a column for the date of original source for data... and where does section number come from? the file name? -- Main.DickFurnas - 03 Nov 2009
   * UCSMP Data Chapters 1-8 attached. -- Main.DickFurnas - 02 Nov 2009
   * Dick- here is an initial attempt of the spreadsheet (including all Core Plus data). I&#39;ll talk to you about filling in the missing parameters soon. -- Main.GabrielDobbs - 02 Nov 2009
   * Thanks Dick, I just had to reregister. I just uploaded some sample files as well. -- Main.GabrielDobbs - 13 Oct 2009
   * Hi Gabriel. Here are the data sets I&#39;ve gotten so far. -- Main.DickFurnas - 18 Sep 2009
   * First Post :-)  -- Main.DickFurnas - 18 Sep 2009

---++ Initial reconnaissance.

Before getting too carried away, I wanted to reconnoiter the first column of the =FINALS.xlsx= spreadsheet since it seemed to have the most diverse assortment of information in it.

Here are some command-line operations I performed in Terminal.app on the Mac after selecting the first column of =FINALS.xlsx= and copying to the clipboard:

---+++ Scale of stuff to look at
<verbatim>
pbpaste | cat | wc
   65536    9807  101150
</verbatim>
   * =pbpaste= takes the contents of the clipboard and sends it to =stdout=
   * =|= pipe character which "pipes" =stdout= to =stdin= of the following command
   * =cat= concatenates to =stdout= . I use =cat= here defensively: =cat= seems to do some smart things with encodings, "conditioning" the text for use by other utilities and in this simple pipeline could have been omitted with identical results. I have encountered situations in which subsequent processing of the clipboard contents behaved better when using =pbpaste= if I inserted =cat= . It may be superfluous voodoo :-) 
   * =wc= performs a word count, reporting number of lines, number of words, number of characters
     * The clipboard apparently has
      * 65536 lines -- more than I want to look at :-) -- Most are probably empty. That number is 2^16 and probably represents the maximum number of possible rows.
      * 9807 words
      * 101150 characters

---+++ Scale of unique stuff
<verbatim>
pbpaste | cat | sort | uniq -c | wc
     967    2571   14253
</verbatim>
   * =sort= sorts the lines
   * =uniq -c= finds unique lines, the =-c= flag says to count how many instances of each line occurred
   * I was actually wanting to see the unique lines, but by starting with =wc= I got an idea of how much stuff I was going to need to look at, here nearly 1000 lines.

---+++ The unique stuff
<verbatim>
pbpaste | cat | sort | uniq -c | less
</verbatim>
   * same as above except replace =wc= with =less= which lets me page backwards and forwards through the output.

---+++ The unique stuff of likely interest that isn't a problem number
<verbatim>
pbpaste | cat | grep '^[A-Z]' | sort | uniq -c | less
</verbatim>
   * similar to above, but only show lines which start with a capital letter
   * =grep= *g* eneralized %NBSP% *r* egular  %NBSP% *e* xpression  %NBSP% *p* arser looks at lines and passes ones which match to =stdout= discarding non-matches
      * =^= anchors to the start of the line
      * =[A-Z]= matches any single character in the given range
      * single quotes to protect the search pattern from interpretation by the shell

---+++ Check the other stuff
<verbatim>
pbpaste | cat | grep -v '^[A-Z]' | sort | uniq -c | less
</verbatim>
   * same as above, except the =-v= flag tells grep to reverse its behavior, send lines which *do not match* to =stdout=
   * Why? To see if I missed anything of interest.

---
-- Main.DickFurnas - 2009-09-18

   * [[%ATTACHURL%/FINALS.xlsx][FINALS.xlsx]]: Glencoe Consolidated Data Spreadsheet

   * [[%ATTACHURL%/UCSMP_FINALS.ods][UCSMP_FINALS.ods]]: UCSMP data

   * UCSMP_Topic_vs_Time.png: <br />
     <img src="%ATTACHURLPATH%/UCSMP_Topic_vs_Time.png" alt="UCSMP_Topic_vs_Time.png" width='1819' height='1013' />
Attachments
Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
ods	FINALS_Glencoe.ods	r1	manage	313.7 K	2009-11-17 - 22:00	DickFurnas	File with formulas as of 17 November 2009
ods	FINALS_UCSMP.ods	r4 r3 r2 r1	manage	860.6 K	2009-11-24 - 18:02	DickFurnas
png	UCSMP_Topic_vs_Time.png	r1	manage	138.1 K	2009-11-24 - 18:00	DickFurnas
zip	UCSMP_Algebra_Ch._1-13.zip	r1	manage	214.8 K	2009-11-17 - 20:04	MaryAnnHuntley	University of Chicago School Mathematics Project
Topic revision: r17 - 2009-11-24 - DickFurnas