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Counting the occurrences / frequency of array elements
In Javascript, I'm trying to take an initial array of number values and count the elements inside it. Ideally, the result would be two new arrays, the first specifying each unique element, and the second containing the number of times each element occurs. However, I'm open to suggestions on the form...
Get the last non-empty cell in a column in Google Sheets
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Slightly simplified answer that also handles blanks, by Doug Bradshaw: =INDEX(FILTER(A1:A,NOT(ISBLANK(A1:A))),COUNTA(A1:A)) (can change starting row A1) full description at: stackoverflow.com/a/27623407/539149
– Zack Morris
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Add one row to pandas DataFrame
I understand that pandas is designed to load fully populated DataFrame but I need to create an empty DataFrame then add rows, one by one .
What is the best way to do this ?
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jQuery: what is the best way to restrict “number”-only input for textboxes? (allow decimal points)
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Update
There is a new and very simple solution for this:
It allows you to use any kind of input filter on a text <input>,
including various numeric filters. This will correctly handle
Copy+Paste, Drag+Drop, keyboard shortcuts, contex...
How to send a command to all panes in tmux?
...s with a huge scrollback. However, I want to script a way to send this command to all the panes in the various windows.
7 A...
SQL Call Stored Procedure for each Row without using a cursor
... as with the accepted answer USE WITH CATION: Depending on your table and index structure it can be very poorly performing ( O(n^2) ) since you have to order and search your table every time you enumerate.
– csauve
May 30 '12 at 1:00
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How do I interpret precision and scale of a number in a database?
...rget that if you're using a system that allows you to pre-define precision and scale of an input for a percentage in something like Microsoft Access, you must consider the percent as it's whole number form. In this case, 25.5% would require precision 4 and scale of 3 (not one) since we have to cons...
T-SQL datetime rounded to nearest minute and nearest hours with using functions
...L server 2008, I would like to get datetime column rounded to nearest hour and nearest minute preferably with existing functions in 2008.
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Foreign Key to multiple tables
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You have a few options, all varying in "correctness" and ease of use. As always, the right design depends on your needs.
You could simply create two columns in Ticket, OwnedByUserId and OwnedByGroupId, and have nullable Foreign Keys to each table.
You could create M:M referen...
The character encoding of the HTML document was not declared
...nt="text/html; charset=ISO-8859-1">
– Scott Stensland
Oct 28 '14 at 21:18
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