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A simple explanation of Naive Bayes Classification
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I realize that this is an old question, with an established answer. The reason I'm posting is that is the accepted answer has many elements of k-NN (k-nearest neighbors), a different algorithm.
Both k-NN and NaiveBayes are classification algorithms. Conceptually, k-NN uses...
Max parallel http connections in a browser?
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A similar table can be found at http://sgdev-blog.blogspot.com/2014/01/maximum-concurrent-connection-to-same.html
– Jo.
Aug 26 '15 at 17:21
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Remove NA values from a vector
...idiom instead:
d <- d[!is.na(d)]
A final note: Other functions (e.g. table(), lm(), and sort()) have NA-related arguments that use different names (and offer different options). So if NA's cause you problems in a function call, it's worth checking for a built-in solution among the function's a...
How to check Oracle database for long running queries
... object_name
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This is a good one for finding long operations (e.g. full table scans). If it is because of lots of short operations, nothing will show up.
COLUMN percent FORMAT 999.99
SELECT sid, to_char(start_time,'hh24:mi:ss') stime,
message,( sofar/totalwork)* 100 percent
FROM v$session_l...
Iterate over a Javascript associative array in sorted order
...ote: this does not work in very old browsers not supporting EcmaScript5, notably IE6, 7 and 8. For detailed up-to-date statistics, see this table)
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Why is [1,2] + [3,4] = “1,23,4” in JavaScript?
...umber, evaluating o + '2' produces '42', a string.
To see how the overview table was generated visit http://jsfiddle.net/1obxuc7m/
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Mac OS X Terminal: Map option+delete to “backward delete word”
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See http://www.bigsmoke.us/readline/shortcuts for a nice little reference table.
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How do I modify the URL without reloading the page?
...modify the URL in the address bar client-side. For instance, if you have a table of data with paging, sorting and filtering, and want those things to be Ajax powered, but still update the URL so that the current state of the page is bookmarkable. I can understand the security risks with modifying t...
Removing a list of characters in string
...was changed and now takes 1 parameter instead of 2.
That parameter is a table (can be dictionary) where each key is the Unicode ordinal (int) of the character to find and the value is the replacement (can be either a Unicode ordinal or a string to map the key to).
Here is a usage example:
>&...
How do you kill all current connections to a SQL Server 2005 database?
...the time that you are looping over the active connections new one can be established, and you'll miss those. You could instead use the following approach which does not have this drawback:
-- set your current connection to use master otherwise you might get an error
use master
ALTER DATABASE YourD...