plotpipe: Allow expressions.
This commit is contained in:
Ole Tange
parent
38c41f0e3a
commit
470a9570d2
|
|
@ -9,7 +9,7 @@ plotpipe - Plot CSV data from a pipe
|
|||
|
||||
=head1 SYNOPSIS
|
||||
|
||||
I<datagenerator> | B<plotpipe> [-n] [-H] [-0] [--log axis] [-C str] [-h] [-V]
|
||||
I<datagenerator> | B<plotpipe> [-n] [-H] [-0] [--log axis] [-C str] [-h] [-V] [I<expression>]
|
||||
|
||||
|
||||
=head1 DESCRIPTION
|
||||
|
|
@ -24,6 +24,16 @@ titles on the plot.
|
|||
|
||||
=over 4
|
||||
|
||||
=item I<expression>
|
||||
|
||||
Evaluate I<expression>. I<expression> consists of parts separated by
|
||||
,. Each part is evaluated as a Perl expression. You can use {I<n>} as
|
||||
the column value:
|
||||
|
||||
seq 10 | plotpipe '{1},{1},{1}**2,sqrt({1})'
|
||||
(echo x y;paste <(seq 10) <(seq 11 20)) |
|
||||
plotpipe {1},{2},{2}/{1}
|
||||
|
||||
=item B<--colsep> I<string>
|
||||
|
||||
=item B<-C> I<string>
|
||||
|
|
@ -76,7 +86,7 @@ Use \0 (NUL) instead of newline (\n) as record separator.
|
|||
|
||||
=item B<-s> I<width>
|
||||
|
||||
Smooth values. Take the average of I<width> y-values.
|
||||
Smooth values. Take the median of I<width> y-values.
|
||||
|
||||
|
||||
=item B<--version>
|
||||
|
|
@ -91,15 +101,15 @@ Show version
|
|||
|
||||
=head1 EXAMPLE
|
||||
|
||||
Plot the points (1,100) .. (100,1):
|
||||
Plot (1,100) .. (100,1):
|
||||
|
||||
paste <(seq 100 -1 1) | plotpipe
|
||||
|
||||
Plot the points (1,101) .. (100,200):
|
||||
Plot (1,101) .. (100,200):
|
||||
|
||||
paste <(seq 100) <(seq 101 200) | plotpipe
|
||||
|
||||
Plot the points (1,101) .. (100,200) and (1,300) .. (100,102):
|
||||
Plot (1,101) .. (100,200) and (1,300) .. (100,102):
|
||||
|
||||
paste <(seq 100) <(seq 101 200) <(seq 300 -2 102) | plotpipe
|
||||
|
||||
|
|
@ -146,11 +156,10 @@ input.csv:
|
|||
You are not limited to a simple graph, but can also do XY-line plots.
|
||||
|
||||
seq 0 0.001 6.29 |
|
||||
perl -nE 'say sin($_*100)*0.3+0.5*cos($_*2),",",
|
||||
sin($_*2)-cos($_*100)*0.3,",",
|
||||
sin($_)+cos($_*99),",",
|
||||
sin($_*3)-cos($_*101)' |
|
||||
plotpipe
|
||||
plotpipe 'sin({1}*100)*0.3+0.5*cos({1}*2),
|
||||
sin({1}*2)-cos({1}*100)*0.3,
|
||||
sin({1})+cos({1}*99),
|
||||
sin({1}*3)-cos({1}*101)'
|
||||
|
||||
|
||||
=head1 LIMITS
|
||||
|
|
@ -189,7 +198,10 @@ B<pipeplot> uses B<gnuplot> and B<perl>.
|
|||
|
||||
=head1 SEE ALSO
|
||||
|
||||
B<gnuplot>, B<perl>
|
||||
B<gnuplot>, B<perl>, B<ploticus>
|
||||
(http://ploticus.sourceforge.net/doc/welcome.html), B<feedgnuplot>
|
||||
(https://github.com/dkogan/feedgnuplot), B<ttyplot>
|
||||
(https://github.com/tenox7/ttyplot)
|
||||
|
||||
|
||||
=cut
|
||||
|
|
@ -368,13 +380,15 @@ if(not GetOptions(options_hash())) {
|
|||
}
|
||||
|
||||
$Global::progname = "plotpipe";
|
||||
$Global::version = 20210222;
|
||||
$Global::version = 20210302;
|
||||
if($opt::version) { version(); exit 0; }
|
||||
if($opt::help) { help(); exit 0; }
|
||||
if($opt::null) { $/ = "\0"; }
|
||||
|
||||
my @eval_function = split/,/, join(" ",@ARGV);
|
||||
|
||||
# Read csv
|
||||
my @csv = <>;
|
||||
my @csv = <STDIN>;
|
||||
|
||||
# Title = lines starting with #
|
||||
my @title = map { s/^#//; s/"/''/g; $_ } map { "$_" } grep { /^#/ } @csv;
|
||||
|
|
@ -408,22 +422,41 @@ if($opt::header) {
|
|||
}
|
||||
|
||||
# Convert input to perl table
|
||||
my $ncols = split /$opt::colsep/, $csv[0];
|
||||
my @tbl;
|
||||
if($ncols >= 2 and not $opt::nox) {
|
||||
# Column 1 = x-axis
|
||||
for(@csv) {
|
||||
chomp;
|
||||
my @row = split /$opt::colsep/, $_;
|
||||
push @tbl,\@row;
|
||||
for(@csv) {
|
||||
chomp;
|
||||
my @row = split /$opt::colsep/, $_;
|
||||
push @tbl,\@row;
|
||||
}
|
||||
|
||||
# Eval
|
||||
if(@eval_function) {
|
||||
for(@eval_function) {
|
||||
my $new_header = $_;
|
||||
$new_header =~ s/\{(\d+)\}/$header[$1-1] || "\\\\{$1\\\\}"/ge;
|
||||
push @new_header, $new_header;
|
||||
}
|
||||
$opt::header = 1;
|
||||
@header = @new_header;
|
||||
for my $row (@tbl) {
|
||||
my @newrow = map {
|
||||
s/\{(\d+)\}/$row->[$1-1]/g;
|
||||
eval "$_"
|
||||
} map { $_ } @eval_function;
|
||||
$row = \@newrow;
|
||||
}
|
||||
}
|
||||
|
||||
# Add x-axis if needed
|
||||
my $ncols = $#{$tbl[0]}+1;
|
||||
if($ncols >= 2 and not $opt::nox) {
|
||||
# Column 1 = x-axis => Data is fine
|
||||
} else {
|
||||
# All data = y-axis, invent x-axis
|
||||
# All data = y-axis => Invent x-axis
|
||||
my $x = 0;
|
||||
for(@csv) {
|
||||
chomp;
|
||||
my @row = ($x++, split /$opt::colsep/, $_);
|
||||
push @tbl,\@row;
|
||||
for my $row (@tbl) {
|
||||
my @newrow = ($x++, @$row);
|
||||
$row = \@newrow;
|
||||
}
|
||||
# Prepend dummy header for x-axis
|
||||
unshift(@header,"");
|
||||
|
|
@ -438,19 +471,42 @@ if($opt::smooth) {
|
|||
exit(255);
|
||||
}
|
||||
my $smooth = $opt::smooth-1;
|
||||
for(my $x = 0; $x < $smooth; $x++) {
|
||||
for (my $y = 0; $y <= $#{$tbl[$x]}; $y++) {
|
||||
$sum[$y] += $tbl[$x][$y] / $opt::smooth;
|
||||
}
|
||||
|
||||
sub median {
|
||||
return ((sort { $a <=> $b } @_)[$#_/2]);
|
||||
}
|
||||
for(my $x = $smooth; $x <= $#tbl; $x++) {
|
||||
sub avg {
|
||||
my $s=0;
|
||||
map { $s += $_ } @_;
|
||||
return ($s / ($#_+1));
|
||||
}
|
||||
|
||||
for(my $x = 0; $x < $#tbl-$smooth; $x++) {
|
||||
for (my $y = 0; $y <= $#{$tbl[$x]}; $y++) {
|
||||
$sum[$y] += $tbl[$x][$y] / $opt::smooth;
|
||||
$new[$x-$smooth][$y] = $sum[$y];
|
||||
$sum[$y] -= $tbl[$x-$smooth][$y] / $opt::smooth;
|
||||
my @med;
|
||||
for(my $m = $x; $m < $x+$smooth; $m++) {
|
||||
push @med, $tbl[$m][$y];
|
||||
}
|
||||
$new[$x+$smooth/2][$y] = median(@med);
|
||||
}
|
||||
}
|
||||
@tbl = @new;
|
||||
|
||||
sub do_average() {
|
||||
for(my $x = 0; $x < $smooth; $x++) {
|
||||
for (my $y = 0; $y <= $#{$tbl[$x]}; $y++) {
|
||||
$sum[$y] += $tbl[$x][$y] / $opt::smooth;
|
||||
}
|
||||
}
|
||||
for(my $x = $smooth; $x <= $#tbl; $x++) {
|
||||
for (my $y = 0; $y <= $#{$tbl[$x]}; $y++) {
|
||||
$sum[$y] += $tbl[$x][$y] / $opt::smooth;
|
||||
$new[$x-$smooth][$y] = $sum[$y];
|
||||
$sum[$y] -= $tbl[$x-$smooth][$y] / $opt::smooth;
|
||||
}
|
||||
}
|
||||
@tbl = @new;
|
||||
}
|
||||
}
|
||||
|
||||
# Save data to tmpfile that will be read by Gnuplot
|
||||
|
|
|
|||
Loading…
Reference in a new issue