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Difference between classification and clustering in data mining? [closed]
...equations, where the feeling of doing something wrong is represented by an error or cost. This process of identifying what not to do with a saber is called Classification .
Clustering and Classification are the absolute basics of machine learning. Let’s look at the difference between them.
Kyl...
How to see which commits in one branch aren't in the other?
...ent version of git (?) but in that case you should have gotten a rev-parse error on the three dots.
– sehe
Sep 28 '11 at 13:39
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How to sort in-place using the merge sort algorithm?
... big enough to hold elements exchanged in without causing any out-of-bound error.
The work area can be overlapped with either of the two sorted arrays; however, it must ensure that none of the unmerged elements are overwritten.
With this merging algorithm defined, it's easy to imagine a solution, ...
C char array initialization
...me point after I provided this answer.
Your code will result in compiler errors. Your first code fragment:
char buf[10] ; buf = ''
is doubly illegal. First, in C, there is no such thing as an empty char. You can use double quotes to designate an empty string, as with:
char* buf = "";
That w...
What is JSONP, and why was it created?
...
JSONP is a great away to get around cross-domain scripting errors. You can consume a JSONP service purely with JS without having to implement a AJAX proxy on the server side.
You can use the b1t.co service to see how it works. This is a free JSONP service that alllows you to minify...
Adding new column to existing DataFrame in Python pandas
...atch out with df.assign that your column is not called self. It will cause errors. This makes df.assign smelly, since there are these kind of artifacts in the function.
df.assign(self=pd.Series(['no', 'no', 'no', 'yes'])
TypeError: assign() got multiple values for keyword argument 'self'
You may ...
Null vs. False vs. 0 in PHP
...ng on and how to check if the returned value is what is wanted or did some error occur while processing. The same actually goes for function params, you can process them differently depending on if they are arrays or strings or what not, and this technique is used throughout PHP heavily too, so ever...
When should I use std::thread::detach?
... release the resources needed to be able to implement join.
It is a fatal error if a thread object ends its life and neither join nor detach has been called; in this case terminate is invoked.
share
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Spinlock versus Semaphore
...so (at least on Linux) the spin_trylock, which returns immediately with an error code, if the lock could not be acquired. A spin‑lock is not always that harsh. But using spin_trylock requires, for an application, to be properly designed that way (probably a queue of pending operations, and here, s...
Using varchar(MAX) vs TEXT on SQL Server
...nto @table values ('d')
select *
from @table
where a ='a'
This give an error:
The data types text and varchar are incompatible in the equal to operator.
Wheras this does not:
declare @table table (a varchar(max))
Interestingly, LIKE still works, i.e.
where a like '%a%'
...