Histoprint uses a mix of terminal color codes and Unicode trickery (i.e.
combining characters) to plot overlaying histograms. Some terminals are not
able to display Unicode combining characters correctly. Histoprint can still be
used in those terminals, but the character set needs to be constrained to the
non-combining ones (see below).
$ python -m pip install histoprint
$ conda install -c conda-forge histoprint
Basic examples:
import numpy as np
from histoprint import text_hist, print_hist
A = np.random.randn(1000) - 2
B = np.random.randn(1000)
C = np.random.randn(1000) + 2
D = np.random.randn(500) * 2
# text_hist is a thin wrapper for numpy.histogram
text_hist(
B, bins=[-5, -3, -2, -1, -0.5, 0, 0.5, 1, 2, 3, 5], title="Variable bin widths"
)
histA = np.histogram(A, bins=15, range=(-5, 5))
histB = np.histogram(B, bins=15, range=(-5, 5))
histC = np.histogram(C, bins=15, range=(-5, 5))
histD = np.histogram(D, bins=15, range=(-5, 5))
histAll = ([histA[0], histB[0], histC[0], histD[0]], histA[1])
# print_hist can be used to print multiple histograms at once
# (or just to print a single one as returned by numpy.histogram)
print_hist(histAll, title="Overlays", labels="ABCDE")
print_hist(
histAll,
title="Stacks",
stack=True,
symbols=" ",
bg_colors="rgbcmy",
labels="ABCDE",
)
print_hist(
histAll,
title="Summaries",
symbols=r"=|\/",
fg_colors="0",
bg_colors="0",
labels=["AAAAAAAAAAAAAAAA", "B", "CCCCCCCCCCCCC", "D"],
summary=True,
)
The last example does not use terminal colors, so it can be copied as text:
Summaries
-5.00e+00 _
-4.33e+00 _═⃫
-3.67e+00 _═⃫═⃫═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
-3.00e+00 _═⃫═⃫═⃫═⃫═⃫═⃫═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
-2.33e+00 _╪⃫╪⃫═⃫═⃫═⃫═⃫═⃫═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
-1.67e+00 _╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫═⃫═⃫═⃫═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
-1.00e+00 _╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
-3.33e-01 _╪⃥⃫╪⃥⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪⃫╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
3.33e-01 _╪⃥⃫╪⃥⃫╪⃥⃫╪⃥⃫╪⃥⃫╪⃥⃫╪⃫╪⃫╪⃫╪⃫│⃫│⃫│⃫│⃫│⃫│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
1.00e+00 _╪⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
1.67e+00 _│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥│⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥
2.33e+00 _│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥⃫│⃥│⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥
3.00e+00 _│⃥⃫│⃥⃫ ⃥⃫ ⃥⃫ ⃥⃫ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥
3.67e+00 _ ⃥⃫ ⃥⃫ ⃥⃫ ⃥⃫ ⃥⃫ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥
4.33e+00 _ ⃥⃫ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥ ⃥
5.00e+00 _ ⃥⃫ ⃥
═͏ AAAAAAAAAAAAAAAA │͏ B ⃥ CCCCCCCCCCCCC ⃫ D
Sum: 9.99e+02 1.00e+03 9.99e+02 4.92e+02
Avg: -1.98e+00 1.13e-02 1.99e+00 -1.71e-01
Std: 1.03e+00 1.03e+00 9.94e-01 2.00e+00
Histoprint can directly plot other (more fancy) types of histograms if they
follow the PlottableProtocol conventions, or offer a way of being converted to
the NumPy format. Currently this means they have to expose a numpy() or
to_numpy() method. Both the ROOT TH1 histograms of uproot4,
as well as the histograms of boost-histogram,
are supported:
import boost_histogram as bh
hist = bh.Histogram(bh.axis.Regular(20, -3, 3))
hist.fill(np.random.randn(1000))
print_hist(hist, title="Boost Histogram")
import uproot
file = uproot.open("http://scikit-hep.org/uproot3/examples/Event.root")
hist = file["htime"]
print_hist(hist, title="uproot TH1")
Some terminals are not able to display Unicode combining characters correctly.
To disable the use of combining characters, simply do not use them when calling
print_hist:
print_hist(some_histograms, symbols=" =|")
The combining characters are / and \. Note that they are used in the
default set of characters for the 4th and 5th histogram if they are present.
Histoprint also comes with a simple command-line interface to create
histograms of tabulated data or even ROOT files (with the help of uproot).
It can read in files or take data directly from STDIN:
$ histoprint --help
Usage: histoprint [OPTIONS] INFILE
Read INFILE and print a histogram of the contained columns.
INFILE can be '-', in which case the data is read from STDIN.
Options:
-b, --bins TEXT Number of bins or space-separated bin edges.
-t, --title TEXT Title of the histogram.
--stack / --nostack Stack the histograms.
-s, --summary / -S, --nosummary
Print summary statistics.
-l, --label TEXT Labels for the data, one for each column.
--symbols TEXT Symbol cycle for multiple histograms.
Choices & default: ' |=/\'
--fg-colors TEXT Colour cycle for foreground colours.
Default: 'WWWWW', Choices:
'0rgbcmykwRGBCMYKW'
--bg-colors TEXT Colour cycle for background colours.
Default: 'K0000', Choices:
'0rgbcmykwRGBCMYKW'
-f, --field TEXT Which fields to histogram. Interpretation of
the fields depends on the file format. TXT
files only support integers for column
numbers starting at 0. For CSV files, the
fields must be the names of the columns as
specified in the first line of the file.
When plotting from ROOT files, at least one
field must be specified. This can either be
the path to a single TH1, or one or more
paths to TTree branches. Also supports
slicing of array-like branches, e.g. use
'tree/branch[:,2]' to histogram the 3rd
elements of a vector-like branch.
-C, --cut TEXT Filter the data to be plotted by a cut
condition. For ROOT files, variables must be
referenced by their branch name within the
TTree, e.g. 'momentum > 100.' rather than
'tree/object/momentum > 100.'. For text
files, the fields are referred to as
'data[i]', where 'i' is the field number.
The variables used in the cut do not have to
be part of the plotted fields.
-c, --columns INTEGER Total width of the displayed histogram in
characters. Defaults to width of the
terminal.
-r, --lines INTEGER Approximate total height of the displayed
histogram in characters. Calculated from
number of columns by default.
--version Show the version and exit.
--help Show this message and exit.
$ histoprint -t "Title" -s -b "0.5 1.5 2.5 3.5 4.5" -l A -l B --fg-colors "0" --bg-colors "0" --symbols "|=" - <<EOF
1 2
2 3
2 3
2 nan
3 4
3 4
EOF
Title
5.00e-01 _
│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
1.50e+00 _│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
2.50e+00 _╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏│͏
╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏
╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏
╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏
3.50e+00 _╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏╪͏
═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
4.50e+00 _═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏═͏
│͏ A ═͏ B
Tot: 6.00e+00 5.00e+00
Avg: 2.17e+00 3.20e+00
Std: 6.87e-01 7.48e-01