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Reasons for using the set.seed function
...now it's basically used for the random number generation. Is there any specific need to set this?
5 Answers
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Deserialize JSON to ArrayList using Jackson
...Visually inspect your array to make sure you got back a list at least. And if need be add the mixin back, which should work along with the TypeReference to get everything neatly deserialized.
– Perception
Mar 22 '12 at 20:27
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Python - doctest vs. unittest [closed]
I'm trying to get started with unit testing in Python and I was wondering if someone could explain the advantages and disadvantages of doctest and unittest.
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Tools for Generating Mock Data? [closed]
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If you are looking or willing to use something MySQL-specific, you could take a look at Super Smack. It is currently maintained by Tony Bourke.
Super Smack allows you to generate random data to insert into your database t...
How to use count and group by at the same select statement
...tly from sql?
For example, having a table with users I want to select the different towns and the total number of users
1...
Haversine Formula in Python (Bearing and Distance between two GPS points)
...culate the great circle distance between two points
on the earth (specified in decimal degrees)
"""
# convert decimal degrees to radians
lon1, lat1, lon2, lat2 = map(radians, [lon1, lat1, lon2, lat2])
# haversine formula
dlon = lon2 - lon1
dlat = lat2 - lat1
a =...
Grouped LIMIT in PostgreSQL: show the first N rows for each group?
...n_id;
It might be faster but, of course, you should test performance specifically on your data and use case.
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IntelliJ - Convert a Java project/module into a Maven project/module
... check the "Maven" technology.
(This also creates a pom.xml for you to modify.)
If you mean adding source repository elements, I think you need to do that manually–not sure.
Pre-IntelliJ 13 this won't convert the project to the Maven Standard Directory Layout, 13+ it will.
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A dependent property in a ReferentialConstraint is mapped to a store-generated column
...s it possible that you defined a bad column relation between your tables? different columns and one was set as autonumeric.
It happened to me.
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How can I put strings in an array, split by new line?
...rator:
$your_array = explode("\n", $your_string_from_db);
For instance, if you have this piece of code:
$str = "My text1\nMy text2\nMy text3";
$arr = explode("\n", $str);
var_dump($arr);
You'd get this output:
array
0 => string 'My text1' (length=8)
1 => string 'My text2' (length=8)...