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histograms have the correct default style

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This commit is contained in:
Dima Kogan 2016-10-15 20:35:48 -07:00
parent 167e85d2a7
commit 4f9adb6e11
1 changed files with 24 additions and 7 deletions
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31
bin/feedgnuplot
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@ -8,7 +8,7 @@ use Getopt::Long;
use Time::HiRes qw( usleep gettimeofday tv_interval );
use IO::Handle;
use IO::Select;
use List::Util qw( first );
use List::Util qw( first any );
use Scalar::Util qw( looks_like_number );
use Text::ParseWords; # for shellwords
use Pod::Usage;
@ -157,6 +157,23 @@ sub interpretCommandline
delete $options{with};
}
# If we're plotting histograms, then set the default histogram options for
# each histogram curve
#
# Apply this to plain (non-cumulative) histograms
if( !$options{curvestyleall} && $options{histstyle} =~ /freq|fnorm/ )
{
for my $hist_curve(@{$options{histogram}})
{
# If we don't specify any options specifically for this histogram, use
# the defaults: filled boxes with borders
if( !any { $options{curvestyle}[$_*2] eq $hist_curve } 0..(@{$options{curvestyle}}/2 - 1) )
{
push @{$options{curvestyle}}, ($hist_curve, 'with boxes fill solid border lt -1');
}
}
}
# --legend and --curvestyle options are conceptually hashes, but are parsed as
# arrays in order to preserve the ordering. I parse both of these into hashes
# because those are useful to have later. After this I can access individual
@ -1497,11 +1514,11 @@ passing something like
C<--histogram curveID>
Set up a this specific curve to plot a histogram. The bin width is given with
the C<--binwidth> option (assumed 1.0 if omitted). C<--histogram> does I<not>
touch the drawing style. It is often desired to plot these with boxes, and this
I<must> be explicitly requested by C<--with boxes>. This works with C<--domain>
the C<--binwidth> option (assumed 1.0 if omitted). If a drawing style is not
specified for this curve (C<--curvestyle>) or all curves (C<--with>,
C<--curvestyleall>) then the default histogram style is set: filled boxes with
borders. This is what the user generally wants. This works with C<--domain>
and/or C<--stream>, but in those cases the x-value is used I<only> to cull old
data because of C<--xlen> or C<--monotonic>. I.e. the x-values are I<not> drawn
in any way. Can be passed multiple times, or passed a comma- separated list
@ -1835,8 +1852,8 @@ in a Thinkpad.
=head2 Plotting a histogram of file sizes in a directory, granular to 10MB
$ ls -l | awk '{print $5/1e6}' |
feedgnuplot --histogram 0 --with boxes
--binwidth 10 --set 'style fill solid'
feedgnuplot --histogram 0
--binwidth 10
--ymin 0 --xlabel 'File size (MB)' --ylabel Frequency
=head1 ACKNOWLEDGEMENT