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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...
Algorithm for creating a school timetable
... was huge, monstrous product (as in multiplication) of weights assigned to selected features and properties. It was extremely steep, one property easily able to change it by an order of magnitude up or down - and there were hundreds or thousands of properties in one organism. This resulted in absolu...
How to avoid type safety warnings with Hibernate HQL results?
...Preferences>Java>Compiler>Errors/Warnings and under Generic type, select the checkbox
Ignore unavoidable generic type problems due to raw APIs
This will turn off unnecessary warnings for similar problems like the one described above which are unavoidable.
Some comments:
I chose to pass...
What is the difference between sed and awk? [closed]
...of awk including mawk and nawk.
Both programs use regular expressions for selecting and processing text.
I would tend to use sed where there are patterns in the text. For example, you could replace all the negative numbers in some text that are in the form "minus-sign followed by a sequence of dig...
Sharing link on WhatsApp from mobile website (not application) for Android
... @HoldOffHunger yes it will open whatsapp application and the user have to select the contact to which he desires to share the link/content.
– ad08
Apr 4 '18 at 12:25
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Android: How to change CheckBox size?
... option i tried is scaleX and scaleY (Strach the check box) and custom xml selector with .png Images(its also creating problem with different screen size)
But we have another solution for that, that is Vector Drawable
Do it in 3 steps.
Step 1: Copy these three Vector Drawable to your drawable...
Extract subset of key-value pairs from Python dictionary object?
...
This answer uses a dictionary comprehension similar to the selected answer, but will not except on a missing item.
python 2 version:
{k:v for k, v in bigDict.iteritems() if k in ('l', 'm', 'n')}
python 3 version:
{k:v for k, v in bigDict.items() if k in ('l', 'm', 'n')}
...
Printing Lists as Tabular Data
...as options to read data from csv, html, sql database. Also you are able to select subset of data, sort table and change table styles.
3. texttable: https://pypi.python.org/pypi/texttable
from texttable import Texttable
t = Texttable()
t.add_rows([['Name', 'Age'], ['Alice', 24], ['Bob', 19]])
print...
Transposing a 2D-array in JavaScript
...
Why would this option be better than the selected answer?
– Alex Lenail
Jul 31 '18 at 15:46
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How to change the order of DataFrame columns?
...mean(1))
http://pandas.pydata.org/pandas-docs/stable/dsintro.html#column-selection-addition-deletion
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