The following will extract hourly weather information for each month of a
given number of years from a weather station from my region. You fill
receive one file for each month in a given number of years including the
curent year. Results will be ok on your PC but incomplete on the iPad.
Your iPad file system will also become confused.
---------------------------------------------------------------------------------------------------------------------------------
require '~addons/web/gethttp/gethttp.ijs'
require '~addons/tables/csv/csv.ijs'
years =: 2 NB. years of hourly climate data
main=: 3 : 0
NB. y: years of hourly climate data for weather station 27377 (Ste-Foy ,
Laval university, Canada)
get=:,/(":,.,/({.6!:0'')-|.i.y),"(1)/'&Month=',"(1)(":,.1+i.12),"1('&Day=14&timeframe=1')
get=: '
http://climate.weather.gc.ca/climate_data/bulk_data_e.html?format=csv&stationID=27377&Year=',"
(1) get
get=:(#~1-' '=])&.><"(1)get NB. NO blank spaces in the request
data =: gethttp each get
data=: ,/>fixcsv &.> data
)
main years
--------------------------------------------------------------------------------------------------------------------------------
Available space on my iPad is close to 8 Gigs, well in excess of the
required 2.2 MB.
This is a segment of my script for estimating the energy saving for
various brands of heat-pumps for witch I have obtained sufficiently
detailed specs. Now that I have made my choice, I can verify that the
energy savings agree with the maker's promisses, taking into account local
weather conditions.
Robert Cyr
On Mon, Nov 19, 2018 at 1:35 PM 'Mike Day' via General <
[email protected]> wrote:
> I tend to take the iPad out with me after updating the script I'm
> working on
> with a jjget from the less mobile laptop. I tweak the script a bit
> perhaps, and
> jjput the newer version. There are minor problems with the editing
> process,
> but worth it for the mobility.
>
> The trouble with your mail is that it sounds dangerous to try to emulate
> your
> problem - no trouble with the mail itself, that is, but I don't want to
> zap my J
> installation on the iPad, any more than you want to zap yours!
>
> My iPad is a bit short of storage - too many photos and videos! - is
> that perhaps
> a feature of yours, too?
>
> Anyway, it might be useful if you could provide a concrete example or two.
>
> Cheers,
>
> Mike
>
>
>
>
> On 19/11/2018 05:19, Robert Cyr wrote:
> > A request for 90K of CSV data only retrieves a fraction of this, varying
> > from 0.8 K to 15K.
> >
> > This error probably caused another problem. My script often contains
> about
> > 100 such requests, and is fine in Windows 10. When it runs on my 2016
> iPad
> > Pro no error is reported, but J's file system appears to become
> completely
> > useless. The J icon in the screen's bottom row is grayed and clicking on
> > the regular J icon starts J almost normally but without access to any of
> > its files. It happens every time, I then download a new copy of J and
> > re-transfer all my useful addons along with all my other scripts with
> jj.
> >
> > It would be nice but perhaps not urgent for this problem to be fixed as
> > the iPad is great for fiddling with a new concept in a few lines of
> compact
> > code, but maybe it is not too efficient for a more involved project.
> > Your experience may differ, but my smallish project involving 100 lines
> of
> > code written on my laptop and the iPad progressed at least twice as fast
> > on the PC as the iPad.
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
