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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...1.42 0.63 0.98 1.20 1.42 1.65 1.87
To get specific statistics, just select them,
df.groupby(['A', 'B'])['C'].describe()[['count', 'mean']]
count mean
A B
bar one 1.0 0.400157
three 1.0 2.240893
two 1.0 -0.977278
foo one 2.0 ...
Custom sort function in ng-repeat
... a set of tiles that display a certain number depending on which option is selected by the user. I would now like to implement a sort by whatever number is shown.
...
How to send JSON instead of a query string with $.ajax?
...USER : localProfile,
INSTANCE : "HTHACKNEY",
PAGE : $('select[name="PAGE"]').val(),
TITLE : $("input[name='TITLE']").val(),
HTML : html,
STARTDATE : $("input[name='STARTDATE']").val(),
ENDDATE : $("input[name='ENDDATE']").val(),
ARCHIVE ...
Can I have H2 autocreate a schema in an in-memory database?
...stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery("select name from customer");
while (rset.next()) {
String name = rset.getString(1);
System.out.println(name);
}
}
}
...
Populating spinner directly in the layout xml
...l_parent"
android:layout_height="wrap_content"
android:drawSelectorOnTop="true"
android:entries="@array/array_name"
/>
I've heard this doesn't always work on the designer, but it compiles fine.
...
Querying DynamoDB by date
... // More code here
}
});
Essentially your query looks like:
SELECT * FROM TABLE WHERE DataID = "some_id" AND Created > timestamp;
The secondary Index will increase the read/write capacity units required so you need to consider that. It still is a lot better than doing a scan, whi...
How to use bootstrap-theme.css with bootstrap 3?
...
This should be the selected answer.
– Patrick Cullen
May 13 '14 at 1:31
11
...
Java Reflection Performance
...Richard Riley Generally class instantiation is a pretty rare event for the selected classes you will use reflection on. I suppose you are right though--some people might instantiate every class reflectively, even ones that are recreated constantly. I would call that pretty bad programming (althoug...
Example of multipart/form-data
... > a.html
Run:
nc -l localhost 8000
Open the HTML on your browser, select the files and click on submit and check the terminal.
nc prints the request received. Firefox sent:
POST / HTTP/1.1
Host: localhost:8000
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:29.0) Gecko/20100101 Fire...
Check if an apt-get package is installed and then install it if it's not on Linux
... is available
The documentations are also very unclear, e.g.:
sudo apt dselect-upgrade
did not remove certbot when it was marked as deinstall, even though man apt-get seems to indicate that:
dselect-upgrade is used in conjunction with the traditional Debian packaging front-end, dselect(1). ...