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Do browsers parse javascript on every page load?
...g scenarios where one loads page after
page from the same site, such as different news articles from a news
service, since each page often loads the same, sometimes very large,
script library.
Therefore JavaScript is cached across page reloads, two requests to the same script will not result...
python numpy ValueError: operands could not be broadcast together with shapes
.../docs.scipy.org/doc/numpy/user/basics.broadcasting.html
(Please note that if X and y are of type numpy.matrix, then asterisk can be used as matrix multiplication. My recommendation is to keep away from numpy.matrix, it tends to complicate more than simplify things.)
Your arrays should be fine with...
what is the difference between 'transform' and 'fit_transform' in sklearn
...he .transform method is meant for when you have already computed PCA, i.e. if you have already called its .fit method.
In [12]: pc2 = RandomizedPCA(n_components=3)
In [13]: pc2.transform(X) # can't transform because it does not know how to do it.
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Hide all warnings in ipython
...ers, I want to disable all warnings emitted by warnings.warn calls from different packages. Is there a way to configure the ipythonrc file to automatically disable all such warnings?
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Advantages to Using Private Static Methods
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I'd go as far as saying: "If a method doesn't need state access (this), make it static" as a general rule.
– DanMan
Mar 4 '15 at 14:09
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@Nullable annotation usage
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It makes it clear that the method accepts null values, and that if you override the method, you should also accept null values.
It also serves as a hint for code analyzers like FindBugs. For example, if such a method dereferences its argument without checking for null first, FindBugs wil...
Inserting multiple rows in a single SQL query? [duplicate]
...tion and answer are old, but I like to mention that there is a functional difference between using the method mentioned in the question and in this answer. The first executes triggers X amount of times with 1 record in the inserted table. The second executes triggers 1 time with x amount of records ...
Linux command or script counting duplicated lines in a text file?
If I have a text file with the following conent
8 Answers
8
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How to declare variable and use it in the same Oracle SQL script?
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If SQL is a standard language then why is it so hard to find a canonical reference that just works everywhere? WTF???
– jww
Feb 19 '19 at 12:55
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Regular expression for exact match of a string
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if you have a the input password in a variable and you want to match exactly 123456 then anchors will help you:
/^123456$/
in perl the test for matching the password would be something like
print "MATCH_OK" if ($input_pas...