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what is the difference between 'transform' and 'fit_transform' in sklearn
...ons transform and fit_transform about sklearn.decomposition.RandomizedPCA . The description of two functions are as follows
...
Running V8 Javascript Engine Standalone
... this might have changed. I read the manual and build v8 like this:
moose@pc08$ svn co http://v8.googlecode.com/svn/trunk v8-trunk
moose@pc08$ cd v8-trunk
moose@pc08$ make dependencies
moose@pc08$ make ia32.release
added export PATH=${PATH}:/home/moose/Downloads/v8-trunk/out/ia32.release to my .b...
Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...现了优先级。
不过ZSET没有原生的POP操作，所以我们需要模拟实现，代码如下：
<?php
class RedisClient extends Redis
{
const POSITION_FIRST = 0;
const POSITION_LAST = -1;
public function zPop($zset)
{
return $this->zsetPop($zset, self:...
Where is the php.ini file on a Linux/CentOS PC? [duplicate]
I can't find PHP.ini location on my server. I've checked all Stack Overflow answers but I can't find my php.ini location.
5...
How can I develop for iPhone using a Windows development machine?
... using a pre-modified) image of Leopard that can be installed on a regular PC. This is not as hard as you would think, although your success/effort ratio will depend upon how closely the hardware in your PC matches that in Mac hardware - e.g. if you're running a Core 2 Duo on an Intel Motherboard, w...
VR硬件行业洗牌进行时 70%创业公司倒闭转行做内容 - 资讯 - 清泛网 - 专注C...
...用手机加VR眼镜，便携且轻，比如三星的GEARVR；第二档是PC端，也就是头戴式显示器，比如HTCVive；第三档是一体机，对设备的计算能力要求高，比如售价昂贵的微软“黑科技”Hololens。
在记者走访的公司中，内容创业普遍的着眼...
Pandas - How to flatten a hierarchical index in columns
...F',
'WBAN',
'day',
'month',
's_CD sum',
's_CL sum',
's_CNT sum',
's_PC sum',
'tempf amax',
'tempf amin',
'year']
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How do I drop a foreign key constraint only if it exists in sql server?
... inline table-valued function
IT = Internal table
P = SQL Stored Procedure
PC = Assembly (CLR) stored-procedure
PG = Plan guide
PK = PRIMARY KEY constraint
R = Rule (old-style, stand-alone)
RF = Replication-filter-procedure
S = System base table
SN = Synonym
SO = Sequence object
Applies to: SQL S...
VSS使用指南 - 开源 & Github - 清泛网 - 专注IT技能提升
VSS使用指南VSS 指南概述VSS是一个版本控制工具。其操作比较简单，使用方便，又能达到公司的需求，所以VSS在我们公司得到了很好的应用。VSS具体的操作方法请参...概述
VSS是一个版本控制工具。其操作比较简单，使用方便，又...
Unicode equivalents for \w and \b in Java regular expressions?
...h a J-results column
for Java and a P-results column for Perl or any other PCRE-based regex engine:
Regex 001A 0085 00A0 2029
J P J P J P J P
\s 1 1 0 1 0 1 0 1
\pZ 0 0 0 0 1 1 ...