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Compress files while reading data from STDIN
...ad data as input and redirect the compressed to output file i.e.
cat test.csv | gzip > test.csv.gz
cat test.csv will send the data as stdout and using pipe-sign gzip will read that data as stdin. Make sure to redirect the gzip output to some file as compressed data will not be written to the t...
How to find where a method is defined at runtime?
...#crime>
If you're on Ruby 1.9+, you can use source_location
require 'csv'
p CSV.new('string').method(:flock)
# => #<Method: CSV#flock>
CSV.new('string').method(:flock).source_location
# => ["/path/to/ruby/1.9.2-p290/lib/ruby/1.9.1/forwardable.rb", 180]
Note that this won't work...
Java switch statement multiple cases
...ted Sep 15 '16 at 14:19
Pascal Tänzer
3777 bronze badges
answered Dec 29 '11 at 6:51
Santtu KähkönenSanttu ...
Find the min/max element of an Array in JavaScript
... Nov 18 '12 at 14:00
Linus UnnebäckLinus Unnebäck
14k99 gold badges5959 silver badges7575 bronze badges
...
Principal component analysis in Python
..............................
if __name__ == "__main__":
import sys
csv = "iris4.csv" # wikipedia Iris_flower_data_set
# 5.1,3.5,1.4,0.2 # ,Iris-setosa ...
N = 1000
K = 20
fraction = .90
seed = 1
exec "\n".join( sys.argv[1:] ) # N= ...
np.random.seed(seed)
...
Warning message: In `…` : invalid factor level, NA generated
...
If you are reading directly from CSV file then do like this.
myDataFrame <- read.csv("path/to/file.csv", header = TRUE, stringsAsFactors = FALSE)
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How can I get stock quotes using Google Finance API?
... very simple and useful.
For instance:
http://finance.yahoo.com/d/quotes.csv?s=GOOG+AAPL&f=snl1
Full details here:
http://www.gummy-stuff.org/Yahoo-data.htm
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How to develop a soft keyboard for Android? [closed]
...", "q", "r", "s", "t", "u", "v", "w",
"x", "y", "z", "ç", "à", "é", "è", "û", "î" };
private String cL[] = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
"K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W",
"X", "Y", "Z", "ç", "à", "é", "è", "û", "î" };
privat...
绘画动画组件 · App Inventor 2 中文网
...)
在画布上给定坐标处绘制一个点。
画多边形(坐标点列表,填充)
在画布上绘制多边形。
坐标点列表 应该是一个包含子列表（其中两个数字代表坐标）的列表。
第一个点和最后一个点不需要相同。例如 ((x1 y1) (x2 y2) ...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...“MAKECMDGOALS”，这个变量中会存放你所指定的终极目标的列表，如果在命令行上，你没有指定目标，那么，这个变量是空值。这个变量可以让你使用在一些比较特殊的情形下。比如下面的例子：
sources = foo.c bar.c
ifneq ( $(MAKECM...