| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| #!/usr/bin/python |
| |
| import random |
| |
| class Distribution: |
| """Represents a normal distribution""" |
| |
| def __init__(self, meanx, meany, stddev): |
| self.meanx = meanx |
| self.meany = meany |
| self.stddev = stddev |
| |
| def sample(self): |
| x = random.gauss(self.meanx, self.stddev) |
| y = random.gauss(self.meany, self.stddev) |
| return x, y |
| |
| |
| if __name__ == '__main__': |
| import sys |
| if len(sys.argv) == 1: |
| print "Usage: python datagen.py <#points> <avg x,avg y,standard dev>+" |
| sys.exit(1) |
| |
| numpoints = int(sys.argv[1]) |
| |
| distributions = [] |
| for arg in sys.argv[2:]: |
| parsedargs = map(float, arg.split(',')) |
| distributions.append(Distribution(*parsedargs)) |
| |
| linecount = 0 |
| while linecount < numpoints: |
| distribution = distributions[linecount % len(distributions)] |
| x, y = distribution.sample() |
| print '{:.5f},{:.5f}'.format(x, y) |
| linecount += 1 |
| |