From eae6f02a13a159515b88c024b05500550ded6db0 Mon Sep 17 00:00:00 2001 From: Connor Olding Date: Tue, 7 Jun 2022 06:48:14 +0200 Subject: [PATCH] library: add hipsterplot.py --- library/hipsterplot.py | 126 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 library/hipsterplot.py diff --git a/library/hipsterplot.py b/library/hipsterplot.py new file mode 100644 index 0000000..38b5c94 --- /dev/null +++ b/library/hipsterplot.py @@ -0,0 +1,126 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- +# +# The MIT License (MIT) +# +# Copyright (c) 2014 Ian Horn and +# Danilo J. S. Bellini +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in all +# copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. + +from __future__ import print_function, division +import math, random, sys +from operator import itemgetter + +# Python 2.x and 3.x compatibility +if sys.version_info.major == 2: + range = xrange + from future_builtins import map, zip + + +CHAR_LOOKUP_SYMBOLS = [(0, ' '), # Should be sorted + (1, '.'), + (2, ':'), + #(3, '!'), + (4, '|'), + #(8, '+'), + (float("inf"), '#')] + +def charlookup(num_chars): + """ Character for the given amount of elements in the bin """ + return next(ch for num, ch in CHAR_LOOKUP_SYMBOLS if num_chars <= num) + + +def bin_generator(data, bin_ends): + """ Yields a list for each bin """ + max_idx_end = len(bin_ends) - 1 + iends = enumerate(bin_ends) + + idx_end, value_end = next(iends) + bin_data = [] + for el in sorted(data): + while el >= value_end and idx_end != max_idx_end: + yield bin_data + bin_data = [] + idx_end, value_end = next(iends) + bin_data.append(el) + + # Finish + for unused in iends: + yield bin_data + bin_data = [] + yield bin_data + + +def enumerated_reversed(seq): + """ A version of reversed(enumerate(seq)) that actually works """ + return zip(range(len(seq) - 1, -1, -1), reversed(seq)) + + +def plot(y_vals, x_vals=None, num_x_chars=70, num_y_chars=15): + """ + Plots the values given by y_vals. The x_vals values are the y indexes, by + default, unless explicitly given. Pairs (x, y) are matched by the x_vals + and y_vals indexes, so these must have the same length. + + The num_x_chars and num_y_chars inputs are respectively the width and + height for the output plot to be printed, given in characters. + """ + y_vals = list(y_vals) + x_vals = list(x_vals) if x_vals else list(range(len(y_vals))) + if len(x_vals) != len(y_vals): + raise ValueError("x_vals and y_vals must have the same length") + + ymin = min(y_vals) + ymax = max(y_vals) + xmin = min(x_vals) + xmax = max(x_vals) + + xbinwidth = (xmax - xmin) / num_x_chars + y_bin_width = (ymax - ymin) / num_y_chars + + x_bin_ends = [(xmin + (i+1) * xbinwidth, 0) for i in range(num_x_chars)] + y_bin_ends = [ymin + (i+1) * y_bin_width for i in range(num_y_chars)] + + columns_pairs = bin_generator(zip(x_vals, y_vals), x_bin_ends) + yloop = lambda *args: [charlookup(len(el)) for el in bin_generator(*args)] + ygetter = lambda iterable: map(itemgetter(1), iterable) + columns = (yloop(ygetter(pairs), y_bin_ends) for pairs in columns_pairs) + rows = list(zip(*columns)) + + for idx, row in enumerated_reversed(rows): + y_bin_mid = y_bin_ends[idx] - y_bin_width * 0.5 + print("{:10.4f} {}".format(y_bin_mid, "".join(row))) + + +if __name__ == '__main__': + # Some examples + ys = [math.cos(x/5.0) for x in range(180)] + num_x_chars = min(70, len(ys)) + plot(ys, num_x_chars=num_x_chars, num_y_chars=15) + + xs = [50.0*random.random() for x in range(180)] + ys = [math.cos(x/5.0) for x in xs] + num_x_chars = min(70, len(ys)) + plot(ys, x_vals=xs, num_x_chars=num_x_chars, num_y_chars=15) + + k = 20 + ys = [random.gauss(0, 0.5) + math.cos(x/5.0/k) for x in range(180*k)] + num_x_chars = min(160, len(ys)) + plot(ys, num_x_chars=num_x_chars, num_y_chars=25) \ No newline at end of file