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Setting different color for each series in scatter plot on matplotlib
...in range(10)]
colors = cm.rainbow(np.linspace(0, 1, len(ys)))
for y, c in zip(ys, colors):
plt.scatter(x, y, color=c)
Or you can make your own colour cycler using itertools.cycle and specifying the colours you want to loop over, using next to get the one you want. For example, with 3 colours...
C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...始化字节数组
file.Read(array, 0, array.Length);//读取流中数据把它写到字节数组中
file.Close();//关闭流
string str = Encoding.Default.GetString(array);//将字节数组内容转化为字符串
Console.WriteLine(str);
将数据写入磁盘文件：
FileStream file = Fil...
How do you split a list into evenly sized chunks?
...old) Python documentation (recipes for itertools):
from itertools import izip, chain, repeat
def grouper(n, iterable, padvalue=None):
"grouper(3, 'abcdefg', 'x') --> ('a','b','c'), ('d','e','f'), ('g','x','x')"
return izip(*[chain(iterable, repeat(padvalue, n-1))]*n)
The current versi...
Get yesterday's date in bash on Linux, DST-safe
...
Here a solution that will work with Solaris and AIX as well.
Manipulating the Timezone is possible for changing the clock some hours.
Due to the daylight saving time, 24 hours ago can be today or the day before yesterday.
You are sure that yesterday is 20 or 30 hours ago...
各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...])
{
// 获取文件的指针
FILE *fp = fopen("test.txt", "r");
// 把指针移动到文件的结尾，使用ftell获取文件长度
fseek(fp, 0 ,SEEK_END);
int len = ftell(fp);
// 定义数组长度
char *pBuf = new char[len + 1];
// 把指针移动到文件开头，因为我们...
Open a link in browser with java button? [duplicate]
...nix()
{
return OS.contains("nix") || OS.contains("nux") || OS.indexOf("aix") > 0;
}
Then we can call this helper from the instance:
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
MUtils.openURL("www.google.com"); // just what is the...
技术人员如何创业《二》- 合伙人的模式 - 资讯 - 清泛网 - 专注C/C++及内核技术
...过当最后成东青理解孟晓骏当年在美国的遭遇，并且悄悄把之前孟晓骏待过的实验室以他的名字冠名，我当时就很羡慕这种共赴患难最后一起成功的兄弟是幸运和幸福的。说一下腾讯，他们几个合伙人从创办到2007年都是一直保...
Passing parameters to a Bash function
...kies. :-)
# $1 is the directory to archive
# $2 is the name of the tar and zipped file when all is done.
function backupWebRoot ()
{
tar -cvf - $1 | zip -n .jpg:.gif:.png $2 - 2>> $errorlog &&
echo -e "\nTarball created!\n"
}
# sh style declaration for the purist in you. ...
grep a tab in UNIX
... That's very good for GNU UNIX, but what about POSIX Solaris, AIX and HP-UX? Those don't know anything about -P option.
– rook
Aug 5 '13 at 15:17
22
...
Understanding the map function
...oop
ys = []
for x in xs:
ys.append(x * 2)
n-ary map is equivalent to zipping input iterables together and then applying the transformation function on every element of that intermediate zipped list. It's not a Cartesian product:
xs = [1, 2, 3]
ys = [2, 4, 6]
def f(x, y):
return (x * 2, y...