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How to calculate a logistic sigmoid function in Python?
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This should do it:
import math
def sigmoid(x):
return 1 / (1 + math.exp(-x))
And now you can test it by calling:
>>> sigmoid(0.458)
0.61253961344091512
Update: Note that the above was mainly intended as a straight one-to-o...
Most efficient T-SQL way to pad a varchar on the left to a certain length?
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This is simply an inefficient use of SQL, no matter how you do it.
perhaps something like
right('XXXXXXXXXXXX'+ rtrim(@str), @n)
where X is your padding character and @n is the number of characters in the resulting string (assuming you need the padding because you are dealing with ...
How to put a delay on AngularJS instant search?
...rformance issue that I can't seem to address. I have an instant search but it's somewhat laggy, since it starts searching on each keyup() .
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Zooming editor window android studio [duplicate]
...eem like a silly question but does anyone know how to zoom in/out of the editor window in android studio? I have actually researched it before people give me minus marks. Ctrl+ and Ctrl- seem to fold and unfold methods, there is no zoom control in the view drop-down and all the googleing ive done h...
Refreshing OAuth token using Retrofit without modifying all calls
We are using Retrofit in our Android app, to communicate with an OAuth2 secured server. Everything works great, we use the RequestInterceptor to include the access token with each call.
However there will be times, when the access token will expire, and the token needs to be refreshed. When the toke...
How to parse XML in Bash?
...just an explaination of Yuzem's answer, but I didn't feel like this much editing should be done to someone else, and comments don't allow formatting, so...
rdom () { local IFS=\> ; read -d \< E C ;}
Let's call that "read_dom" instead of "rdom", space it out a bit and use longer variables:
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How can I reset or revert a file to a specific revision?
I have made some changes to a file which has been committed a few times as part of a group of files, but now want to reset/revert the changes on it back to a previous version.
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C++, variable declaration in 'if' expression
...ble:
if (int a = Func1(), b = Func2(); a && b)
{
// Do stuff with a and b.
}
Note the use of ; of instead of , to separate the declaration and the actual condition.
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Appending HTML string to the DOM
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Use insertAdjacentHTML if it's available, otherwise use some sort of fallback. insertAdjacentHTML is supported in all current browsers.
div.insertAdjacentHTML( 'beforeend', str );
Live demo: http://jsfiddle.net/euQ5n/
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What is meant with “const” at end of function declaration? [duplicate]
I got a book, where there is written something like:
6 Answers
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