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Big-oh vs big-theta [duplicate]
...referred over laxness of bound (i.e., bullet 1
below).
T(n) = O(n100), which is identical to T(n) ∈ O(n100)
T(n) = O(n3), which is identical to T(n) ∈ O(n3)
T(n) = Θ(n3), which is identical to T(n) ∈ Θ(n3)
The equivalent English statements are respectively:
T(n)...
Detect and exclude outliers in Pandas data frame
...g expression would do that in one shot.
df = pd.DataFrame(np.random.randn(100, 3))
from scipy import stats
df[(np.abs(stats.zscore(df)) < 3).all(axis=1)]
description:
For each column, first it computes the Z-score of each value in the
column, relative to the column mean and standard deviati...
Comparing arrays in JUnit assertions, concise built-in way?
...
BozhoBozho
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What's the most efficient way to erase duplicates and sort a vector?
...large. I used datasets of 1,000,000 randomly drawn integers between 1 and 1000, 100, and 10 for this graph.
– Nate Kohl
Jun 26 '09 at 15:10
5
...
Is there a rule-of-thumb for how to divide a dataset into training and validation sets?
...ances in each category rather than the percentage.
If you have a total of 100 instances, you're probably stuck with cross validation as no single split is going to give you satisfactory variance in your estimates. If you have 100,000 instances, it doesn't really matter whether you choose an 80:20 s...
How does data binding work in AngularJS?
...for anyone reading this: one time binding is now a core feature in Angular v1.3, read more here: docs.angularjs.org/guide/expression
– Nobita
Oct 24 '14 at 11:59
...
When is it appropriate to use UDP instead of TCP? [closed]
...ecords to return with each individual client request to be 1, 10, and then 100 (three test runs with each protocol). The server was only two hops away over a 100Mbit LAN. The numbers seemed to agree with what others have found in the past (UDP is about 5% faster in most situations). The total tim...
Function that creates a timestamp in c#
...for millisecond precision, so you need 3 'f's at the end. Your 4 'f's give 100 microsend precision.
– Evgeniy Berezovsky
Dec 4 '14 at 23:50
...
Can I have an onclick effect in CSS?
...ng):
label {
display: block;
background: lightgrey;
width: 100px;
height: 100px;
}
#demo:checked + label {
background: blue;
color: white;
}
<input type="checkbox" id="demo"/>
<label for="demo">I'm a square. Click me.</label>
Here I've positioned...
List of ANSI color escape sequences
...erm (not in standard) ║
║ 100–107 ║ Set bright background color ║ aixterm (not in standard) ║
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