You did not show the shapes of the data offending label for the
truncated 10 year case.

Shapes have to match for -: to match.

Shapes can be different because if you have 1 dimension(s), or if you
have invisible characters.

Take care,

-- 
Raul

On Tue, May 26, 2020 at 4:53 AM HH PackRat <[email protected]> wrote:
>
> On 5/25/20, Henry Rich <[email protected]> wrote:
> > You used {: in the last line.  Try it with {. .
> >
> > and on 5/25/20, 'robert therriault' via Programming 
> > <[email protected]> wrote:
> > I noticed in the single line test that you used {: a and not {. a
> >
> > and on 5/25/20, bill lam <[email protected]> wrote:
> > ... Maybe there are some typo such as {: instead of {. inside you code .
>
> Thanks for your eagle eyes in catching that typo!  I had an older
> remarked (NB.) line  immediately above this line of code that had the
> {:a which I visually copied instead of the correct {.a that I had used
> everywhere else.
>
> Unfortunately, making this change did NOT change the results for the
> full 10-year data.   (It did work for the 10-day test case.)  I have
> no idea why this difference should exist.  (The test case is the
> column header row plus the first 10 days of the full 10-year file.)  I
> scanned the 10-year data, but nothing stood out as an anomaly.  The
> ONLY difference I noticed in the running of the J program is that the
> initial boxing looks slightly different for the two sets of data.
> (The data is read into file aa by the dsv routine in J.)  I have no
> idea why the two sets of data should look slightly different since the
> data is the same, except for quantity.  The difference is in the
> display of the headers in the full data.  (I tried my best to make
> these look like the originals.  It's very hard with a proportional
> font.)
>
> Here is what a truncated output looks like for the 10-day test data:
>
> 3 {. aa
> ┌─────┬─────┬─────┬─────┬─────┬──────┬───────┬──────┐
> │ "Date" │ "Price"│"Open"  │ "High"  │"Low"   │  "Vol."   │"Change %"│
>            │
> ├─────┼─────┼─────┼─────┼─────┼──────┼───────┼──────┤
> │"May 22│ 2020" │"670.21"│"668.40"│"670.41"│"665.21"│"-"             │"0.23%" 
> │
> ├─────┼─────┼─────┼─────┼──────┼─────┼───────┼──────┤
> │"May 21│ 2020" │"668.66"│"672.93"│"675.06"│"666.13"│"-"             
> │"-0.70%"│
> └─────┴─────┴─────┴─────┴──────┴─────┴───────┴──────┘
> 3 {. a
> ┌─────┬───┬─────┬────┬────┬────┬──────┬────┐
> │Date     │Price│Open   │High   │Low    │Vol.   │Change %│        │
> ├─────┼───┼─────┼────┼────┼────┼──────┼────┤
> │May 22 │ 2020│670.21│668.40│670.41│665.21│-            │0.23% │
> ├─────┼───┼─────┼────┼────┼────┼──────┼────┤
> │May 21 │ 2020│668.66│672.93│675.06│666.13│-            │-0.70%│
> └─────┴───┴─────┴────┴────┴────┴──────┴────┘
> DATE
> 1   <-------- match is TRUE and column header row is deleted below
> 3 {. a
> ┌─────┬───┬────┬────┬─────┬────┬┬─────┐
> │May 22│ 2020│670.21│668.40│670.41│665.21│-│0.23% │
> ├─────┼───┼────┼────┼─────┼────┼┼─────┤
> │May 21│ 2020│668.66│672.93│675.06│666.13│-│-0.70%│
> ├─────┼───┼────┼────┼─────┼────┼┼─────┤
> │May 20│ 2020│673.36│670.68│675.42│670.26│-│1.73% │
> └─────┴───┴────┴────┴─────┴────┴┴─────┘
>
>
> And here is what a truncated output looks like for the full 10-year data:
>
> 3 {. aa
> ┌──────┬────┬──────┬─────┬─────┬──────┬────────┬──────┐
> │"Date"│"Price"│"Open"    │"High"  │"Low"    │"Vol."    │"Change %"│
>             │
> ├──────┼────┼──────┼─────┼─────┼──────┼────────┼──────┤
> │"May 22  │ 2020" │"670.21"│"668.40"│"670.41"│"665.21"│"-"
>   │"0.23%" │
> ├──────┼────┼──────┼─────┼─────┼──────┼────────┼──────┤
> │"May 21  │ 2020" │"668.66"│"672.93"│"675.06"│"666.13"│"-"
>   │"-0.70%"│
> └──────┴────┴──────┴─────┴─────┴──────┴────────┴──────┘
> 3 {. a
> ┌─────┬───┬-─-─-─┬─────┬────┬────┬──────┬────┐
> │Date│Price│Open  │High    │Low    │Vol.   │Change %│         │
> ├─────┼───┼-─-─-─┼─────┼────┼────┼──────┼────┤
> │May 22 │ 2020│670.21│668.40│670.41│665.21│-            │0.23% │
> ├─────┼───┼-─-──-┼─────┼────┼────┼──────┼────┤
> │May 21 │ 2020│668.66│672.93│675.06│666.13│-            │-0.70%│
> └─────┴───┴─-─-─-┴─────┴────┴────┴──────┴────┘
> DATE
> 0   <-------- match is FALSE and column header row is not deleted below
> 3 {. a
> ┌─────┬───┬-─-─-─┬─────┬────┬────┬──────┬────┐
> │Date│Price│Open  │High    │Low    │Vol.   │Change %│         │
> ├─────┼───┼-─-─-─┼─────┼────┼────┼──────┼────┤
> │May 22 │ 2020│670.21│668.40│670.41│665.21│-            │0.23% │
> ├─────┼───┼-─-──-┼─────┼────┼────┼──────┼────┤
> │May 21 │ 2020│668.66│672.93│675.06│666.13│-            │-0.70%│
> └─────┴───┴─-─-─-┴─────┴────┴────┴──────┴────┘
>
> I'm curious why the headers are completely in sync with the data box
> shapes when using the test data but out of sync with the box shapes
> when using the full data (as well as having a match that is false
> rather than true).
>
> Here is the very brief code that I've been using for testing:
>
> NB. ci2.ijs
> require 'files stdlib'
> require 'tables\dsv'
> root=: '!user\......'  NB. wherever you wish
>
> NB.               syntax:  ci2  'datafilename'
> ci2=: 3 : 0
>   aa=. ',' readdsv (jpath root,y)
> smoutput 3 {. aa
>   a=. removedoublequotes each aa
> smoutput 3 {. a
> smoutput toupper (> 0 { ({. a))
> smoutput 'DATE' -: toupper (> 0 { ({. a))
>   if. 'DATE' -: toupper (> 0 { ({. a)) do. a=. }. a end.
> smoutput 3 {. a
> )
> NB. ========================
> NB. adapted from source: "Special Matrices & Lists" in "Phrases"
> NB. [original: removeblanks]
> removedoublequotes=: -.@('"'&E.) # ]
> NB. ========================
>
> I would be happy to share the test file and full file via email with
> anyone who is interested in figuring out this puzzle.  The test file
> is 699 B, and the full file is 159 KB.
>
> I'm eager to find out why the test file works but the full file
> doesn't (even though the test file is the first 11 rows of the full
> file).
>
> Harvey
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