Re: [ferret_users] plot/i=1:10: No such file or directory when running Ferret tour

Hi Nguyen,

From your screen shot, you have never run pyferret. The '>' that your typed redirected output to a file called 'pyferret' (and since there was no command before it, there is probably an empty file called pyferret in that directory.

In the example you were looking at, the '> ' represents the shell command prompt. SInce you are under bash, your shell command prompt is everything before and including the '$ '

I am assuming you have run the bin/Finstall script under the PyFerret installation directory, which will create the ferret_paths.sh script and the pyferret script. If not, that is the first thing you need to do to finish the installation of PyFerret.

The following is close to what the session should look like to you.
I am going to assume your installation directory of /usr/local/PyFerret/ and you installed the ferret_paths.sh script in /usr/local/PyFerret/bin/ You will need to adjust for your actual location of where you put the ferret_paths.sh script. In the following, the boldface is what you are typing, the rest are prompts and messages. The "yes? " is the prompt for Ferret and Ferret commands in PyFerret

NguyenTuyet$ . /usr/local/PyFerret/bin/ferret_paths.sh
NguyenTuyet$ pyferret
     NOAA/PMEL TMAP
     FERRET v6.96 (PyFerret 1.2)
     Linux 2.6.32-573.8.1.el6.x86_64 - 12/22/15
     2-Feb-16 10:00

yes? set text /font=arial
yes? plot /i=1:10 1/i
yes? quit
NguyenTuyet$

Regards,

Karl

On Tue, Feb 2, 2016 at 8:21 AM, Bier, Andreas <Andreas.Bier@xxxxxx> wrote:

Hello Tuyet,

as seen from your screen shot, your are using Pyferret instead of Ferret. Honestly, I am not really familiar with PyFerret since I am working with the classic Ferret program. I've found in
http://ferret.pmel.noaa.gov/Ferret/documentation/pyferret/known-issues/
that "PLOT+pattern files are not yet supported by the new graphics engines". However, the shade command should work. For example:

set region/i=1:10/j=1:5
shade i/j

Some more information about graphics in Pyferret you also can find here:

http://ferret.pmel.noaa.gov/Ferret/documentation/pyferret/graphics/

Best regards,
Andreas

Nguyen Tuyet wrote:

Hi Bier, Venu,

here’s my screen shot for that error

Even I use this command:
yes? set region/i=1:10
yes? plot 1/i

but it doesn’t work

On Feb 2, 2016, at 6:42 PM, Bier, Andreas <Andreas.Bier@xxxxxx
<mailto:Andreas.Bier@xxxxxx>> wrote:

Hello Tuyet,

I use the ferret/6.9.3 version and actually, your command listed below
works. Another possibility which you can try is doing that by :

yes? set region/i=1:10
yes? plot 1/i

Best regards,
Andreas

Nguyen Tuyet wrote:

Hi all,

Iam quite new to ferret. When I try to run Ferret tour, follow commands
there in http://ferret.pmel.noaa.gov/Ferret/documentation/ferret-tutorial

With command PLOT/i=1:10 1/i, it opens No such file or directory.

I don’t know how to fix it.

Please help me

Tuyet

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Andreas Bier
Telefon +49 8153 28-2519 | Telefax +49 8153 28-1841 |
Andreas.Bier@xxxxxx <mailto:Andreas.Bier@xxxxxx>
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------------------------------------------------------------------
Deutsches Zentrum fuer Luft- und Raumfahrt e.V. (DLR)
Institut fuer Physik der Atmosphaere | Muenchner Strasse 20 | Oberpfaffenhofen | 82234 Wessling | Germany

Andreas Bier
Telefon +49 8153 28-2519 | Telefax +49 8153 28-1841 | Andreas.Bier@xxxxxx
www.dlr.de/ipa

Karl M. Smith, Ph.D.
JISAO Univ. Wash. and PMEL NOAA
"The contents of this message are mine personally and do
not necessarily reflect any position of the Government
or the National Oceanic and Atmospheric Administration."