In on file the data spaces are separated by a space and in the other one they are separated with <tab>, requiring set datafile separator "\t".

How can I say plot "file1.txt", "file2.txt", to be compatible with both?

--
Jean-Pierre Coulon

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On 10.06.2020 13:07, Jean-Pierre Coulon wrote:

In on file the data spaces are separated by a space and in the other one
they are separated with <tab>, requiring set datafile separator "\t".

How can I say plot "file1.txt", "file2.txt", to be compatible with both?

Here the default "whitespace" works with both separators (Tabulator and
Space).

set datafile separator whitespace

Jörg

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On 6/10/20 1:07 PM, Jean-Pierre Coulon wrote:

In on file the data spaces are separated by a space and in the other one
they are separated with <tab>, requiring set datafile separator "\t".

How can I say plot "file1.txt", "file2.txt", to be compatible with both?

Have you just tried it? Since I'am using now 20+ years I never had
problems with Space and \t as separator... neither in same file nor in different files.

Greetings,

Olaf

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On Wed, 10 Jun 2020, Jörg Buchholz wrote:

Here the default "whitespace" works with both separators (Tabulator and Space).

set datafile separator whitespace

In my second file I have: set timefmt "%d/%m/%Y %H:%M:%S" and now when I plot the second file using 1:2 gnuplot believes the hour field is my second
column. Same with 1:3.

I know how to workaround with multiplot but I thought it could be simpler.

--
Jean-Pierre Coulon

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On 10.06.2020 15:43, Jean-Pierre Coulon wrote:

On Wed, 10 Jun 2020, Jörg Buchholz wrote:

Here the default "whitespace" works with both separators (Tabulator and
Space).

set datafile separator whitespace

In my second file I have: set timefmt "%d/%m/%Y %H:%M:%S" and now when I
plot the second file using 1:2 gnuplot believes the hour field is my
second column. Same with 1:3.

I know how to workaround with multiplot but I thought it could be simpler.

There will be more than one solution. My solution is, bring both files
to the same separator. With "sytem" you can do it from inside gnuplot.


system "sed -i 's/\ /\t/g' sep_space.dat"
set datafile separator "\t"
plot 'sep_tab.dat' u 1:2 w lp, 'sep_space.dat' u 1:2 w lp



This "sed -i 's/\ /\t/g' sep_space.dat" convert the space into a
tabulator, in the file "sep_space.dat".

Jörg

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On Thu, 11 Jun 2020, Jörg Buchholz wrote:

I know how to workaround with multiplot but I thought it could be simpler. >>

There will be more than one solution. My solution is, bring both files
to the same separator. With "sytem" you can do it from inside gnuplot.

Thanks, but I am with Windows. But I know how to process either file in Fortran. Or I'll ask the enthusiast who provided the files to standardize either one :-)

--
Jean-Pierre Coulon

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On 6/11/20 8:21 AM, Jean-Pierre Coulon wrote:

On Thu, 11 Jun 2020, Jörg Buchholz wrote:

I know how to workaround with multiplot but I thought it could be
simpler.

There will be more than one solution. My solution is, bring both files
to the same separator. With "sytem" you can do it from inside gnuplot.

Thanks, but I am with Windows. But I know how to process either file in Fortran. Or I'll ask the enthusiast who provided the files to
standardize either one :-)

install cygwin and then use gnuplot there... sed and awk and gnuplot are available under cygwin.

Greetings,

Olaf

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On 11.06.2020 09:18, Olaf Schultz wrote:

On 6/11/20 8:21 AM, Jean-Pierre Coulon wrote:

On Thu, 11 Jun 2020, Jörg Buchholz wrote:

I know how to workaround with multiplot but I thought it could be
simpler.

There will be more than one solution. My solution is, bring both files
to the same separator. With "sytem" you can do it from inside gnuplot.

Thanks, but I am with Windows. But I know how to process either file in
Fortran. Or I'll ask the enthusiast who provided the files to
standardize either one :-)

install cygwin and then use gnuplot there... sed and awk and gnuplot are available under cygwin.

I have a mix of both. On Windows I use the "Win-Gnuplot" and cygwin to
have these nice helpers from the linux/unix world.

Here is another solution with only gnuplot.

set datafile separator whitespace
set table 'space2tab.dat' separator tab
plot 'sep_space.dat' u 1:2 w table
set datafile separator "\t"
unset table
plot 'sep_tab.dat' w p, 'space2tab.dat' w p


Then you have a second dataset (sep_space.dat -> space2tab.dat) with
tabulator instead space separators. It works since version 5.2.2.


Jörg

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Am 10.06.2020 um 15:43 schrieb Jean-Pierre Coulon:

On Wed, 10 Jun 2020, Jörg Buchholz wrote:

Here the default "whitespace" works with both separators
(Tabulator and
Space).

set datafile separator whitespace

In my second file I have: set timefmt "%d/%m/%Y %H:%M:%S" and now
when I plot the second file using 1:2 gnuplot believes the hour
field is my second column. Same with 1:3.

I know how to workaround with multiplot but I thought it could be
simpler.

The timeformat specifier should win against any datafile separator.
At least I was pretty sure it used to. That however doesn´t seem to
be the case both in gp5.3rc1 and 4.6.6. Hmmm ....


$dat << EOD
03/04/2020 14:14:14 654
03/04/2020 15:15:15 543
03/04/2020 16:16:16 654
EOD

#set dataf sep ...

set xdata time
set timefmt "%d/%m/%Y %H:%M:%S"
plot $dat us (timecolumn(1)):3 w lp ps 3

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On 11.06.20 21:24, Karl Ratzsch wrote:

Am 10.06.2020 um 15:43 schrieb Jean-Pierre Coulon:

On Wed, 10 Jun 2020, Jörg Buchholz wrote:

Here the default "whitespace" works with both separators
(Tabulator and
Space).

set datafile separator whitespace

In my second file I have: set timefmt "%d/%m/%Y %H:%M:%S" and now
when I plot the second file using 1:2 gnuplot believes the hour
field is my second column. Same with 1:3.

I know how to workaround with multiplot but I thought it could be
simpler.

The timeformat specifier should win against any datafile separator.
At least I was pretty sure it used to. That however doesn´t seem to
be the case both in gp5.3rc1 and 4.6.6. Hmmm ....

$dat << EOD
03/04/2020 14:14:14 654
03/04/2020 15:15:15 543
03/04/2020 16:16:16 654
EOD

#set dataf sep ...

set xdata time
set timefmt "%d/%m/%Y %H:%M:%S"
plot $dat us (timecolumn(1)):3 w lp ps 3

Thanks to point this out, this can result in less work. GP 5.0.5 Debian Stretch.

Jörg

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