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Find the most frequent number in a numpy vector
... as it is generic, short and allows pulling elements from values or counts by some derived index.
– ryanjdillon
Sep 22 '15 at 13:16
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Remove an entire column from a data.frame in R
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To remove one or more columns by name, when the column names are known (as opposed to being determined at run-time), I like the subset() syntax. E.g. for the data-frame
df <- data.frame(a=1:3, d=2:4, c=3:5, b=4:6)
to remove just the a column you cou...
Guards vs. if-then-else vs. cases in Haskell
...sion
then -n
else n
Every if..then..else expression can be replaced by a guard if it is at the top level of a function, and this should generally be preferred, since you can add more cases more easily then:
abs n
| n < 0 = -n
| otherwise = n
case..of is for when you have multip...
How to make a JTable non-editable
...non-editable? I don't want my users to be able to edit the values in cells by double-clicking them.
7 Answers
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Best way to convert IList or IEnumerable to Array
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ahh... the unit test project does not include the linq by default. Thank you!
– zsf222
Oct 25 '15 at 4:51
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Can an AngularJS controller inherit from another controller in the same module?
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In response to the issue raised in this answer by gmontague, I have found a method to inherit a controller using $controller(), and still use the controller "as" syntax.
Firstly, use "as" syntax when you inherit calling $controller():
app.controller('ParentCtrl', f...
Facebook Post Link Image
... to an image that represents the entity. Images must be at least 50 pixels by 50 pixels. Square images work best, but you are allowed to use images up to three times as wide as they are tall.
og:url - The canonical, permanent URL of the page representing the entity. When you use Open Graph tags, the...
Dynamically set local variable [duplicate]
...en't functions (so modules, class definitions, instances) are usually done by dictionary lookups (as Sven points out in the comments there are exceptions, for example classes that define __slots__). Function locals can be optimised for speed because the compiler (usually) knows all the names in adva...
OSGi, Java Modularity and Jigsaw
...itself. As a secondary goal it will offer a module system that may be used by other Java libraries and applications.
My position is that something like Jigsaw is probably necessary for the JRE only, but that it will create far more problems than it claims to solve if used by other Java libraries or...
Javascript object Vs JSON
...y be omitted as per my explanation in Q1.
Q3. You can parse a JSON string by using JSON.parse, and this is generally the best way to do it (if the browser or a framework provides it). You can also just use eval since JSON is valid javascript code, but the former method is recommended for a number o...