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Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
..............................................
def kmeans( X, centres, delta=.001, maxiter=10, metric="euclidean", p=2, verbose=1 ):
""" centres, Xtocentre, distances = kmeans( X, initial centres ... )
in:
X N x dim may be sparse
centres k x dim: initial centres, e.g. random.sa...
Truncate (not round) decimal places in SQL Server
...
Here's the way I was able to truncate and not round:
select 100.0019-(100.0019%.001)
returns 100.0010
And your example:
select 123.456-(123.456%.001)
returns 123.450
Now if you want to get rid of the ending zero, simply cast it:
select cast((123.456-(123.456%.001)) as decimal (1...
Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术
...码一共规定了128个字符的编码, 比如空格"SPACE"是32(二进制00100000), 大写的
字母A是65(二进制01000001). 这128个符号(包括32个不能打印出来的控制符号), 只占用
了一个字节的后面7位, 最前面的1位统一规定为0.
1.2 非ASCII编码
英语...
How can I delete a file from a Git repository?
...nges in working directory)
#
# modified: shop/mickey/mtt_flange_SCN.7z.001
# modified: shop/mickey/mtt_flange_SCN.7z.002
[~/www]$ ls shop/mickey/mtt_flange_S*
shop/mickey/mtt_flange_SCN.7z.001 shop/mickey/mtt_flange_SCN.7z.002
[~/www]$
[~/www]$
[~/www]$ git rm --cached shop/mickey/mtt_fla...
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
... current system timezone):
$ date +%s
1318996912
$ irb
ruby-1.9.2-p180 :001 > require 'date'
=> true
ruby-1.9.2-p180 :002 > Time.at(1318996912).to_datetime
=> #<DateTime: 2011-10-18T23:01:52-05:00 (13261609807/5400,-5/24,2299161)>
Further update (for UTC):
ruby-1.9.2-p18...
What is the list of supported languages/locales on Android?
...GH [Akan (Ghana)]
am_ [Amharic]
am_ET [Amharic (Ethiopia)]
ar_ [Arabic]
ar_001 [Arabic (World)]
ar_AE [Arabic (United Arab Emirates)]
ar_BH [Arabic (Bahrain)]
ar_DJ [Arabic (Djibouti)]
ar_DZ [Arabic (Algeria)]
ar_EG [Arabic (Egypt)]
ar_EH [Arabic (Western Sahara)]
ar_ER [Arabic (Eritrea)]
ar_IL [Ara...
Formatting a number with exactly two decimals in JavaScript
...= 0 ? 1 : -1;
return (Math.round((num*Math.pow(10,decimals)) + (sign*0.001)) / Math.pow(10,decimals)).toFixed(decimals);
}
As you can see I had to add a little bit of "correction" (it's not what it is, but since Math.round is lossy - you can check it on jsfiddle.net - this is the only way I kn...
What does “fragment” mean in ANTLR?
...identify octal / decimal / hexadecimal numbers
input.txt
0
123
1~9999
001~077
0xFF, 0x01, 0xabc123
Number.g4
grammar Number;
content
: (number|ANY_CHAR)* EOF
;
number
: DECIMAL_NUMBER
| OCTAL_NUMBER
| HEXADECIMAL_NUMBER
;
DECIMAL_NUMBER
: [1-9][0-9]*
| '0...
What is a good Java library to zip/unzip files? [closed]
...org.zeroturnaround.zip.ZipException: java.io.FileNotFoundException: images\001GL.JPG: open failed: EINVAL (Invalid argument) error
– Smit Patel
Jan 16 '14 at 11:30
4
...
How to place the ~/.composer/vendor/bin directory in your PATH?
...swered Sep 22 '15 at 15:55
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