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what is the difference between 'transform' and 'fit_transform' in sklearn
... into training data and test data:
import numpy as np
from sklearn.model_selection import train_test_split
X_train, X_test, y_train, y_test = train_test_split(X, y)
X_train_vectorized = model.fit_transform(X_train)
X_test_vectorized = model.transform(X_test)
Imagine we are fitting a tokenizer,...
How do you default a new class to public when creating it in Visual Studio?
When I right click in the Solution of a C# Visual Studio project and select Add... > Class... it creates a class without a public modifier. How do I get Visual Studio (2008) to default the class to a public class?
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No “pull” in Git Gui?
...pstream:short)' $(git symbolic-ref -q HEAD) | tr / " ")
It automatically selects current remote branch.
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How do I determine k when using k-means clustering?
...core
range_n_clusters = [2, 3, 4] # clusters range you want to select
dataToFit = [[12,23],[112,46],[45,23]] # sample data
best_clusters = 0 # best cluster number which you will get
previous_silh_avg = 0.0
for n_clusters in range_n_clusters:
clusterer = KMeans...
MVC4 style bundle giving 403
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Also in the select2 nuget package.
– Tetsujin no Oni
Jan 21 '15 at 14:01
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Easiest way to toggle 2 classes in jQuery
... match the elements that expose either class, you can use a multiple class selector and write:
$(".A, .B").toggleClass("A B");
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Getting only response header from HTTP POST using curl
...when you actually want to POST some data. Curl says: Warning: You can only select one HTTP request method! You asked for both POST Warning: (-d, --data) and HEAD (-I, --head).
– SebastianH
Dec 1 '16 at 18:15
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Pick a random element from an array
...low
Just to answer your question, you can do this to achieve random array selection:
let array = ["Frodo", "sam", "wise", "gamgee"]
let randomIndex = Int(arc4random_uniform(UInt32(array.count)))
print(array[randomIndex])
The castings are ugly, but I believe they're required unless someone else h...
Why does Oracle 9i treat an empty string as NULL?
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@sehe the confusing bit for me is select 1 from dual where ('' is null)
– matt freake
Aug 22 '13 at 15:58
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XPath query to get nth instance of an element
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This is a FAQ:
//somexpression[$N]
means "Find every node selected by //somexpression that is the $Nth child of its parent".
What you want is:
(//input[@id="search_query"])[2]
Remember: The [] operator has higher precedence (priority) than the // abbreviation.
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