Network Field Technician
by ashaikfe＠gmail.com
A Network Field Technician is responsible for network development and maintenance in the field for any organization. The individual works with the organization’s technical team and its clients to install, configure, maintain, and fix all LAN/WAN and other equipment issues, ensuring efficient network functionality.
The technician maintains computer equipment, mobile devices, phones, cabling, routers, switches, and printers, among others, to address all of the client’s networking requirements either remotely or at the clients’ premises.
Read More: https://www.fieldengineer.com/skills/network-field-technician
1 year, 7 months
Hamilton trend-cycle decomposition
by Riccardo (Jack) Lucchetti
Hi all,
yesterday, after having taught my students the HP decomposition, I
wondered if I should also tell them that one of the greatest time-series
econometricians on Earth recently wrote a rather scathing paper entitled
"Why You Should Never Use the Hodrick-Prescott Filter", where he proposes
a simple alternative.
So this morning I rustled up a little script with Hamilton's filter. Here
it is:
<hansl>
function series hamcycle(series y, bool do_plot[1], string title[null])
h0 = 2 * $pd
h1 = h0 + 4
list PROJ = y(-h0 to -h1)
ols y 0 PROJ -q
# ht = $yhat
hc = $uhat
if do_plot
if !exists(title)
title = argname(y)
endif
print title
diff8 = y - y(-h0)
setinfo diff8 --graph-name="Random walk"
setinfo hc --graph-name="Regression"
list PLT = diff8 hc
plot PLT
options time-series with-lines
literal set linetype 1 lc rgb "#ff0000"
literal set linetype 2 lc rgb "#000000"
literal set key top right
printf "set title '%s'", title
end plot --output=display
endif
return hc
end function
# example
nulldata 300
setobs 4 1947:1
open fedstl.bin
data gdpc1 expgsc1 pcecc96
list Y = gdpc1 expgsc1 pcecc96
LY = logs(Y)
strings Titles = strsplit("GDP Exports Consumption")
k = 1
# reproduce part of figure 6
loop foreach i LY --quiet
hc = hamcycle($i*100,,Titles[k++])
endloop
</hansl>
Should we turn this into a function package?
-------------------------------------------------------
Riccardo (Jack) Lucchetti
Dipartimento di Scienze Economiche e Sociali (DiSES)
Università Politecnica delle Marche
(formerly known as Università di Ancona)
r.lucchetti(a)univpm.it
http://www2.econ.univpm.it/servizi/hpp/lucchetti
-------------------------------------------------------
2 years, 5 months
building gretl from git: heads up!
by Allin Cottrell
For anyone who's building gretl from the current git sources, and
doing the build outside of the source tree (recommended), here's an
alert:
Please "rm -rf addons/geoplot/examples"
in your build tree (NOT the source tree) then rerun the configure
script. This will recreate the examples directory in its new form,
not as a symlink into the source tree but as a directory in its own
right, containing symlinks to the files under "examples" in the
source. This is a cleaner model, and will probably be extended to
the other addons before too long.
Allin
3 years
how to use word-completion with keyboard shortcut?
by Sven Schreiber
Hi,
in gretl's script editor on Windows I have word completion suggestions
enabled. See the attached screenshot for an example which gives me 4
choices. Notice the little numbers on the right - how do I use them to
directly choose the corresponding suggestion? I've tried typing the
numbers or using combinations with shift or control without success.
thanks
sven
3 years
Re: Sorry, gretl crashed when I tried matrix m = zeros(2,2) * .NaN (Marcin Błażejowski)
by Fred Engst
Thanks Marcin,
Now I know how to create a matrix of NA’s.
Still, gretl should not have crashed.
I’m sorry to make more work for Allin, it seems.
Best,
Fred
> On May 24, 2020, at 4:22 PM, gretl-users-request(a)gretlml.univpm.it wrote:
>
> Send Gretl-users mailing list submissions to
> gretl-users(a)gretlml.univpm.it
>
> To subscribe or unsubscribe via email, send a message with subject or
> body 'help' to
> gretl-users-request(a)gretlml.univpm.it
>
> You can reach the person managing the list at
> gretl-users-owner(a)gretlml.univpm.it
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Gretl-users digest..."
>
> Today's Topics:
>
> 1. Re: Sorry, gretl crashed when I tried matrix m = zeros(2,2) * .NaN
> (Marcin Błażejowski)
> 2. Another repeatable crash (Fred Engst)
>
>
> ----------------------------------------------------------------------
>
> Date: Sun, 24 May 2020 07:27:32 +0200
> From: Marcin Błażejowski <marcin(a)wrzosy.nsb.pl>
> Subject: [Gretl-users] Re: Sorry, gretl crashed when I tried matrix m
> = zeros(2,2) * .NaN
> To: Gretl list <gretl-users(a)gretlml.univpm.it>
> Message-ID: <dfcd134a-49a5-8712-6be1-9cba5bcb4512(a)wrzosy.nsb.pl>
> Content-Type: text/plain; charset=utf-8
>
> On 24.05.2020 06:13, Fred Engst wrote:
>> Hi Allin and all,
>> As I was trying to find a way to create an empty matrix with all NaN’s, it didn’t work.
>
> Try this:
>
> matrix Foo = zeros(2,2) * NA
>
> M
>
> --
> Marcin Błażejowski
>
3 years
Re: Another repeatable crash
by Fred Engst
Hi Artur, Marcin, and Allin,
Artur, it was the br dataset accompanying POE.
Yes, Marcin, that is so much simpler. Great advise.
Allin, you did again, like always!
Thank all of you so much.
Fred
> On May 25, 2020, at 6:00 AM, gretl-users-request(a)gretlml.univpm.it wrote:
>
> Send Gretl-users mailing list submissions to
> gretl-users(a)gretlml.univpm.it
>
> To subscribe or unsubscribe via email, send a message with subject or
> body 'help' to
> gretl-users-request(a)gretlml.univpm.it
>
> You can reach the person managing the list at
> gretl-users-owner(a)gretlml.univpm.it
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Gretl-users digest..."
>
> Today's Topics:
>
> 1. Re: Another repeatable crash (Artur Tarassow)
> 2. Re: Sorry, gretl crashed when I tried matrix m = zeros(2,2) * .NaN (Marcin Błażejowski)
> (Fred Engst)
> 3. Re: Sorry, gretl crashed when I tried matrix m = zeros(2,2) * .NaN (Marcin Błażejowski)
> (Riccardo (Jack) Lucchetti)
> 4. Re: Sorry, gretl crashed when I tried matrix m = zeros(2,2) * .NaN
> (Allin Cottrell)
> 5. Re: Another repeatable crash (Allin Cottrell)
>
>
> ----------------------------------------------------------------------
>
> Date: Sun, 24 May 2020 10:30:01 +0200
> From: Artur Tarassow <atecon(a)posteo.de>
> Subject: [Gretl-users] Re: Another repeatable crash
> To: gretl-users(a)gretlml.univpm.it
> Message-ID: <499a916b-c053-f111-4019-f2994476a501(a)posteo.de>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Hi Fred,
>
> which data set are you using?
>
> Artur
>
> Am 24.05.20 um 10:21 schrieb Fred Engst:
>> Hi Allin and all,
>> While I was doing some scripting, I found another repeatable crash.
>>
>> This is my stripped down version from a more developed script:
>>
>
> ------------------------------
>
> Date: Sun, 24 May 2020 16:56:59 +0800
> From: Fred Engst <engst.uibe(a)gmail.com>
> Subject: [Gretl-users] Re: Sorry, gretl crashed when I tried matrix m
> = zeros(2,2) * .NaN (Marcin Błażejowski)
> To: gretl-users(a)gretlml.univpm.it
> Message-ID: <D648D4AD-3300-44EF-AF5D-61D81ED0B726(a)gmail.com>
> Content-Type: text/plain; charset=utf-8
>
> Thanks Marcin,
> Now I know how to create a matrix of NA’s.
>
> Still, gretl should not have crashed.
> I’m sorry to make more work for Allin, it seems.
> Best,
> Fred
>
>
>> On May 24, 2020, at 4:22 PM, gretl-users-request(a)gretlml.univpm.it wrote:
>>
>> Send Gretl-users mailing list submissions to
>> gretl-users(a)gretlml.univpm.it
>>
>> To subscribe or unsubscribe via email, send a message with subject or
>> body 'help' to
>> gretl-users-request(a)gretlml.univpm.it
>>
>> You can reach the person managing the list at
>> gretl-users-owner(a)gretlml.univpm.it
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Gretl-users digest..."
>>
>> Today's Topics:
>>
>> 1. Re: Sorry, gretl crashed when I tried matrix m = zeros(2,2) * .NaN
>> (Marcin Błażejowski)
>> 2. Another repeatable crash (Fred Engst)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Date: Sun, 24 May 2020 07:27:32 +0200
>> From: Marcin Błażejowski <marcin(a)wrzosy.nsb.pl>
>> Subject: [Gretl-users] Re: Sorry, gretl crashed when I tried matrix m
>> = zeros(2,2) * .NaN
>> To: Gretl list <gretl-users(a)gretlml.univpm.it>
>> Message-ID: <dfcd134a-49a5-8712-6be1-9cba5bcb4512(a)wrzosy.nsb.pl>
>> Content-Type: text/plain; charset=utf-8
>>
>> On 24.05.2020 06:13, Fred Engst wrote:
>>> Hi Allin and all,
>>> As I was trying to find a way to create an empty matrix with all NaN’s, it didn’t work.
>>
>> Try this:
>>
>> matrix Foo = zeros(2,2) * NA
>>
>> M
>>
>> --
>> Marcin Błażejowski
>>
>
> ------------------------------
>
> Date: Sun, 24 May 2020 11:09:24 +0200 (CEST)
> From: "Riccardo (Jack) Lucchetti" <r.lucchetti(a)univpm.it>
> Subject: [Gretl-users] Re: Sorry, gretl crashed when I tried matrix m
> = zeros(2,2) * .NaN (Marcin Błażejowski)
> To: Gretl list <gretl-users(a)gretlml.univpm.it>
> Message-ID:
> <alpine.DEB.2.22.394.2005241108020.32100(a)ec-4.econ.univpm.it>
> Content-Type: multipart/mixed;
> boundary="-842988409-2089853478-1590311364=:32100"
>
> This message is in MIME format. The first part should be readable text,
> while the remaining parts are likely unreadable without MIME-aware tools.
>
> ---842988409-2089853478-1590311364=:32100
> Content-Type: text/plain; charset=utf-8; format=flowed
> Content-Transfer-Encoding: quoted-printable
>
> On Sun, 24 May 2020, Fred Engst wrote:
>
>> Thanks Marcin,
>> Now I know how to create a matrix of NA=E2=80=99s.
>
> better still:
>
> <hansl>
> matrix m =3D mshape(NA, 2, 2)
> </hansl>
>
>> Still, gretl should not have crashed.
>
> Of course not.
>
> -------------------------------------------------------
> Riccardo (Jack) Lucchetti
> Dipartimento di Scienze Economiche e Sociali (DiSES)
>
> Universit=C3=A0 Politecnica delle Marche
> (formerly known as Universit=C3=A0 di Ancona)
>
> r.lucchetti(a)univpm.it
> http://www2.econ.univpm.it/servizi/hpp/lucchetti
> -------------------------------------------------------
> ---842988409-2089853478-1590311364=:32100--
>
> ------------------------------
>
> Date: Sun, 24 May 2020 08:16:04 -0400 (EDT)
> From: Allin Cottrell <cottrell(a)wfu.edu>
> Subject: [Gretl-users] Re: Sorry, gretl crashed when I tried matrix m
> = zeros(2,2) * .NaN
> To: Gretl list <gretl-users(a)gretlml.univpm.it>
> Message-ID:
> <alpine.LFD.2.20.3.2005240815001.148270(a)myrtle.attlocal.net>
> Content-Type: multipart/mixed;
> boundary="-1463795199-1658901890-1590322568=:148270"
>
> ---1463795199-1658901890-1590322568=:148270
> Content-Type: text/plain; charset=UTF-8; format=flowed
> Content-Transfer-Encoding: quoted-printable
>
> On Sun, 24 May 2020, Fred Engst wrote:
>
>> As I was trying to find a way to create an empty matrix with all=20
>> NaN=E2=80=99s, it didn=E2=80=99t work.
>>
>> So I tried the command "matrix m =3D zeros(2,2) * .NaN=E2=80=9D on the =
> gretl=20
>> console, and gretl crashed.
>>
>> This is a repeatable crash.
>
> Thanks for the report, this is now fixed in git.
>
> Allin
> ---1463795199-1658901890-1590322568=:148270--
>
> ------------------------------
>
> Date: Sun, 24 May 2020 08:18:16 -0400 (EDT)
> From: Allin Cottrell <cottrell(a)wfu.edu>
> Subject: [Gretl-users] Re: Another repeatable crash
> To: Gretl list <gretl-users(a)gretlml.univpm.it>
> Message-ID:
> <alpine.LFD.2.20.3.2005240816570.148270(a)myrtle.attlocal.net>
> Content-Type: text/plain; charset=US-ASCII; format=flowed
>
> On Sun, 24 May 2020, Fred Engst wrote:
>
>> Hi Allin and all,
>> While I was doing some scripting, I found another repeatable crash.
>>
>> This is my stripped down version from a more developed script:
>>
>> # crash test
>> list y = l_price
>> list x = bedrooms age baths
>> strings xnames = defarray("const") + varnames(x)
>>
>> ols y const x --robust --quiet
>> scalar i = 1
>> string xname = xnames[i]
>> scalar coeff = $coeff(xname)
>> scalar coeff = $coeff(xnames[i])
>
> [The last line provoked a crash]
>
> Again, thanks for the report. Fixed in git.
>
> Allin
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it
> To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it
> Website: https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/
>
>
> ------------------------------
>
> End of Gretl-users Digest, Vol 160, Issue 17
> ********************************************
3 years
Another repeatable crash
by Fred Engst
Hi Allin and all,
While I was doing some scripting, I found another repeatable crash.
This is my stripped down version from a more developed script:
# crash test
list y = l_price
list x = bedrooms age baths
strings xnames = defarray("const") + varnames(x)
ols y const x --robust --quiet
scalar i = 1
string xname = xnames[i]
scalar coeff = $coeff(xname)
scalar coeff = $coeff(xnames[i])
Here is the output before the last line:
scalar coeff = $coeff(xnames[i])
gretl version 2020c-git
Current session: 2020-05-24 16:10
? list y = l_price
Replaced list y
? list x = bedrooms age baths
Replaced list x
? strings xnames = defarray("const") + varnames(x)
? ols y const x --robust --quiet
? scalar i = 1
Generated scalar i = 1
? string xname = xnames[i]
Generated string xname
? scalar coeff = $coeff(xname)
Replaced scalar coeff = 10.0438
It is the last line "scalar coeff = $coeff(xnames[i])” that caused the crash.
Here is the crash report:
3 years
