大约有 30,000 项符合查询结果（耗时：0.0714秒） [XML]
A simple explanation of Naive Bayes Classification
...,no
Here is the code the comments explains everything we are doing here! [python]
import pandas as pd
import pprint
class Classifier():
data = None
class_attr = None
priori = {}
cp = {}
hypothesis = None
def __init__(self,filename=None, class_attr=None ):
self.d...
lexers vs parsers
...efine it as just '\n' to end the instruction with the end of line, like in Python. But the syntax of instruction (and the parser) stays unchanged :-) Only lexer needs to be changed.
– SasQ
Aug 2 '12 at 1:08
...
Memcached vs. Redis? [closed]
...ashing algorithms or a modulus. The same is said for Redis. I mostly use Python and there seem to be quite a few modules that don't rely on the memcached library to handle connection pools.
– whardier
Oct 9 '12 at 4:57
...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
... Holy balls, that was informative! thank you. This solved my issue with a python guy who was expecting only BEGIN RSA PUBLIC KEY. Though, in your last example, it looks like you forgot to remove the 32 characters.
– NullVoxPopuli
Oct 16 '15 at 16:33
...
What is a NullReferenceException, and how do I fix it?
...ar v in list) { } // exception
More realistic example - select nodes from XML document. Will throw if nodes are not found but initial debugging shows that all properties valid:
foreach (var node in myData.MyXml.DocumentNode.SelectNodes("//Data"))
Ways to Avoid
Explicitly check for null and ignore...
How does Google Instant work?
...h href\x3d\x22http://stackoverflow.com/\x22\x3e\x3cscript\x3eje.pa(_loc, \x27rso\x27, \x27\\x3c!--m--\\x3e\\x3clink rel\\x3dprefetch href\\x3d\\x22http://stackoverflow.com/\\x22\\x3e\\x3cli class\\x3dg\\x3e\\x3ch3 class\\x3d\\x22r\\x22\\x3e\\x3ca href\\x3d\\x22http://stackoverflow.com/\\x22 class\\x...
What characters can be used for up/down triangle (arrow without stem) for display in HTML?
... ⌚ WATCH
U+231B ⌛ HOURGLASS
U+2326 ⌦ ERASE TO THE RIGHT
U+2327 ⌧ X IN A RECTANGLE BOX
U+2328 ⌨ KEYBOARD
U+2329 〈 LEFT-POINTING ANGLE BRACKET
U+232A 〉 RIGHT-POINTING ANGLE BRACKET
U+232B ⌫ ERASE TO THE LEFT
U+23E9 ⏩ BLACK RIGHT-POINTING DOUBLE TRIANGLE
U+2...
SQL query to select dates between two dates
...ere EmployeeId = 1
and Date between '2011/02/25' and '2011/02/27'
or can use
select Date, TotalAllowance from Calculation where EmployeeId = 1
and Date >= '2011/02/25' and Date <= '2011/02/27'
keep in mind that the first date is inclusive, but the second is exclu...
Extracting numbers from vectors of strings
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answered Jan 27 '13 at 1:51
ArunArun
105k2020 gold badges254254 silver badges359359 bronze badges
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Is the != check thread safe?
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answered Aug 27 '13 at 8:35
Evgeniy DorofeevEvgeniy Dorofeev
120k2626 gold badges179179 silver badges245245 bronze badges
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