On 5/26/21, greg heil wrote:
> Another take on viewing such DOHLCV data
Thanks, Greg! I've already implemented previous ideas, but I will
look into your code for possible applications in the future. Again,
thanks!
Harvey
--
Fo
NB. int part of % for LN
pl10 =: <. @ pct @ l10 NB. " for l10
Note'eg usage'
fn=: (i.6) numb cBoxs 0 dedash cBoxs f
1 pl10 cBoxs fn
)
--
from: chris burke
to: Programming forum
date: May 17, 2021, 6:37 AM
subject: Re: [Jprogramming] Mass amend
> I'm at a
> I'm at a point where I would like to learn how to write GUIs in J and how
to write visually oriented J programs (such as stock market
charting programs). I think it may be challenging because, from my initial
investigating, there seems to be *extremely* little
information (including coding sampl
Hi, Raul!
On 5/16/21, Raul Miller wrote:
> You left out your example data for 'filer', but you gave enough detail
> that I think I can see what you are trying to do.
The following (which I did show) was the untransposed original
version, downloaded from Yahoo Finance:
DateOpen H
Ok...
You left out your example data for 'filer', but you gave enough detail
that I think I can see what you are trying to do.
That said, I think that I would split this up into two different routines:
One routine would deal with unpacking the "rows" (or "inverted
columns) from your data and ame
Hello--I was out of the house for much of today, so I haven't been
able to respond until now.
Thanks to all who responded with suggestions! Unfortunately, none of
them worked as is, probably because you're used to a different way of
approaching the problem and also because I probably should have
Depends what Harvey means by "values", I suppose.
I assumed he meant scalars. Otherwise my observation is pretty useless!
Cheers,
Mike
On 15/05/2021 19:01, Joey K Tuttle wrote:
I'm probably wrong, but when I first saw Harvey's request, I thought by amend
he might be visualizing something
I'm probably wrong, but when I first saw Harvey's request, I thought by amend
he might be visualizing something like -
(],%:) &.> <"0 ]i. 2 5
+-+-+-+-+---+
|0 0 |1 1 |2 1.414213562|3 1.732050808|4 2|
+-+-
Sorry... another early send!
You’ve already had some helpful, constructive, replies. All I’ve got to add is
to wonder why you’re working with boxed data if your data are as regular as
your example suggests.
If you really do have m rows of n boxed numeric values, why not just open it
up w
Sent from my iPad
> On 15 May 2021, at 04:13, HH PackRat wrote:
>
> Hello again!
>
> I'm thinking, for example, of a table of boxed data in its transposed
> horizontal position that has, say, 3 rows of, say, 1000 *boxed* values
> each. My goal is to amend *all* of the boxed values to their s
None has been talking about base 10 logs here.
The fact that scaling a logarithm is equivalent to using
a different base doesn’t mean changing the base mirrors
the semantics of every occurrence of (factor&*&^.)
Sometimes you just want to /scale this value up/.
And the base you’d come up with that
Hmm... why would we do that?
^. gives the natural log, if we wanted to work with base 10 logs we'd
be using 10&^. instead of a bare ^. and if we're treating logs as
percentages we'd probably be working with log10
(But what is the domain where we'd be wanting logs-as-percent?)
Thanks,
--
Raul
For completeness’ sake: for the scaled variant, you’d do
hh_constant =: 100
scaled_logs =: hh_constant&*&^. each original
Am 15.05.21 um 06:46 schrieb Raul Miller:
> logs=: ^. each original
--
--
mail written using NEO
neo-layout.org
---
To expand on greg heil's suggestion, and to try and interpret what you
suggested, it sounds like you want something like this:
original=: <"0 i.3 1000
roots=: %:each original
logs=: ^. each original
But you also talked about amending all of the values, so maybe you want
original=: roots
or
origin
PM
subject: [Jprogramming] Mass amend
Hello again!
>I'm thinking, for example, of a table of boxed data in its transposed
>horizontal position that has, say, 3 rows of, say, 1000 *boxed* values each.
>My goal is to amend *all* of the boxed values to their square roots in one
>versi
Harvey
sounds like you are looking for each, eg
%: each 4;9;16
+-+-+-+
|2|3|4|
+-+-+-+
~greg heil
https//picsrp.github.io
--
from: HH PackRat
to: programm...@jsoftware.com
date: May 14, 2021, 8:13 PM
subject: [Jprogramming] Mass amend
Hello again!
>I'm thinking, for example, of
Hello again!
I'm thinking, for example, of a table of boxed data in its transposed
horizontal position that has, say, 3 rows of, say, 1000 *boxed* values
each. My goal is to amend *all* of the boxed values to their square
roots in one version of what I want to do and *all* of the original
boxed v
17 matches
Mail list logo
