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Given an RGB value, how do I create a tint (or shade)?
Given an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color?
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How to connect to Mysql Server inside VirtualBox Vagrant?
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Make sure MySQL binds to 0.0.0.0 and not 127.0.0.1 or it will not be accessible from outside t...
MySQL Update Inner Join tables query
...char(255), mapy varchar(255)) engine=innodb;
Query OK, 0 rows affected (0.01 sec)
mysql> create table business_geocode (business_geocode_id int unsigned primary key auto_increment, business_id int unsigned not null, latitude varchar(255) not null, longitude varchar(255) not null, foreign key (bu...
The modulo operation on negative numbers in Python
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Unlike C or C++, Python's modulo operator (%) always return a number having the same sign as t...
How do I create test and train samples from one dataframe with pandas?
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I would just use numpy's randn:
In [11]: df = pd.DataFrame(np.random.randn(100, 2))
In [12]: msk = np.random.rand(len(df)) < 0.8
In [13]: train = df[msk]
In [14]: test = df[~msk]
And just to see this has worked:
In [15]: len(test)
Out[15]: 21
In [16]:...
How can I create directory tree in C++/Linux?
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What are the advantages of using nullptr?
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In that code, there doesn't seem to be an advantage. But consider the following overloaded fun...
How to create a sequence of integers in C#?
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You can use Enumerable.Range(0, 10);. Example:
var seq = Enumerable.Range(0, 10);
MSDN page here.
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How to scale SVG image to fill browser window?
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