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What is an intuitive explanation of the Expectation Maximization technique? [closed]
... parameters:
import numpy as np
from scipy import stats
np.random.seed(110) # for reproducible results
# set parameters
red_mean = 3
red_std = 0.8
blue_mean = 7
blue_std = 2
# draw 20 samples from normal distributions with red/blue parameters
red = np.random.normal(red_mean, red_std, size=20)
b...
How to get current time in milliseconds in PHP?
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The short answer is:
$milliseconds = round(microtime(true) * 1000);
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Appending to an empty DataFrame in Pandas?
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408
That should work:
>>> df = pd.DataFrame()
>>> data = pd.DataFrame({"A": rang...
How to reference the initial commit?
...newer, you can use the --max-parents option:
$ git rev-list --max-parents=0 HEAD
Otherwise, you can get list of all parentless (root) commits accessible from current branch using:
$ git rev-list --parents HEAD | egrep "^[a-f0-9]{40}$"
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Check if bash variable equals 0 [duplicate]
I have a bash variable depth and I would like to test if it equals 0. In case yes, I want to stop executing of script. So far I have:
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CSS: Set a background color which is 50% of the width of the window
... this on a spare div element:
#background {
position: fixed;
top: 0;
left: 0;
width: 50%;
height: 100%;
background-color: pink;
}
Example: http://jsfiddle.net/PLfLW/1704/
The solution uses an extra fixed div that fills half the screen. Since it's fixed, it will remain in...
GroupBy pandas DataFrame and select most common value
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10 Answers
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git: difference between “branchname” and “refs/heads/branchname”
Best to be explained at an example: I am on branch 0.58 of repository and this his how I pull:
3 Answers
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Create boolean column in MySQL with false as default value?
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205
You have to specify 0 (meaning false) or 1 (meaning true) as the default. Here is an example:
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VC 对话框背景颜色、控件颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...框背景颜色：
网上流传有四种方法(可能还不止)，在VC++2008SP1测试后，发现只有三种可以使用了，其中第一种被废弃了。以下是四种方法：
方法一 (失效)：调用CWinApp类的成员函数SetDialogBkColor来实现。
其中函数的第一个...