12:59 p.m.
Dear
gretl-community,
Is it
possible to plot two or even more scatter plots in one graph?
For example I have:
series x1=normal()
series x2=normal()
series y1=x1+normal()
series y2=-x2+normal()
#Then I
want to plot y1 against x1 and y2 against x2
Is this
possible? I am wondering because I found no way to achieve this as in Excel it
is quite easy to do this by just adding a second line (see attached Excel graph). In R
there is the possibilty to "overplot" to scatters, but what is with gretl?
Thank you
so much in advance for any of your proposals!
Best
regards
Elmar
1:08 p.m.
I think that you should see if Gnuplot is able to do it. Try to run
the demos (they are included in gretl install in Windows or gnuplot's
in Linux).
Gretl is prepared for two data series (y1, y2) against one explanatory (x) var.
See the gnuplot commands that gretl generates and go from there.
Good luck,
Hélio
On Wed, Jan 30, 2013 at 12:59 PM, savos schmagges <elmarelch(a)hotmail.com> wrote:
Dear gretl-community,
Is it possible to plot two or even more scatter plots in one graph?
For example I have:
series x1=normal()
series x2=normal()
series y1=x1+normal()
series y2=-x2+normal()
#Then I want to plot y1 against x1 and y2 against x2
Is this possible? I am wondering because I found no way to achieve this as
in Excel it is quite easy to do this by just adding a second line (see
attached Excel graph). In R there is the possibilty to "overplot" to
scatters, but what is with gretl?
Thank you so much in advance for any of your proposals!
Best regards
Elmar
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3:47 p.m.
On Wed, 30 Jan 2013, savos schmagges wrote:
Is it possible to plot two or even more scatter plots in one
graph?
You can plot several y-variables against one x (in the GUI,
under /View/Graph specified vars/X-Y scatter, or in script
mode using the "gnuplot" command). However, at present you
cannot have multiple x variables in a single scatterplot.
Or at least this is not supported by gretl's interface; you
can do it in gnuplot. For example, given a data file "gpdat"
with 4 columns of values, you can do
plot 'gpdat' using 1:2, 'gpdat' using 3:4
to get overlaid plots.
Allin Cottrell
7:24 p.m.
On Wed, 30 Jan 2013, Allin Cottrell wrote:
On Wed, 30 Jan 2013, savos schmagges wrote:
> Is it possible to plot two or even more scatter plots in one
> graph?
Is this a passable approximation to what you have in mind?
<hansl>
set echo off
set messages off
nulldata 40
loop i=1..2 --quiet
x$i = normal()
cf = (-1)^i
y$i = cf*x$i + normal()
ols y$i 0 x$i --quiet
a$i = $coeff[1]
b$i = $coeff[2]
end loop
string fname = "my_thing.gp"
outfile @dotdir/@fname --write
printf "set key off\n"
printf "plot '-' using 1:2, "
printf "'-' using 1:2, "
printf "%g + %g*x, ", a1, b1
printf "%g + %g*x\n", a2, b2
loop i=1..$nobs
printf "%g %g\n", x1[i], y1[i]
end loop
printf "e\n"
loop i=1..$nobs
printf "%g %g\n", x2[i], y2[i]
end loop
printf "e\n"
outfile @dotdir/@fname --close
gnuplot --input="@dotdir/@fname" --output=display
</hansl>
-------------------------------------------------------
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
-------------------------------------------------------
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3 comments
4 participants
participants (4)
-
Allin Cottrell -
Hélio Guilherme -
Riccardo (Jack) Lucchetti -
savos schmagges