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Pandas dataframe get first row of each group
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sed: print only matching group
...rab the last two numbers (one int, one float; followed by optional whitespace) and print only them.
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How to make div background color transparent in CSS
I'm not using CSS3. So I can't use opacity or filter attributes. Without using these attributes how can I make the background-color transparent of a div ? It should be kind of the text box example in this link . Here the text box background color is transparent. I want to make the same, but ...
Cassandra port usage - how are the ports used?
When experimenting with Cassandra I've observed that Cassandra listens to the following ports:
7 Answers
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Objective-C - Remove last character from string
In Objective-C for iOS, how would I remove the last character of a string using a button action?
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Find the last element of an array while using a foreach loop in PHP
...x compared to this one. I have not ran any tests but I guess this answer shall be faster as it is not extracting array of keys.This shall have O(1) speed
– Vaibhav Kamble
Mar 20 '09 at 7:09
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Enable 'xp_cmdshell' SQL Server
I want to execute EXEC master..xp_cmdshell @bcpquery
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COUNT DISTINCT with CONDITIONS
I want to count the number of distinct items in a column subject to a certain condition, for example if the table is like this:
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figure of imshow() is too small
I'm trying to visualize a numpy array using imshow() since it's similar to imagesc() in Matlab.
4 Answers
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