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Finding the max value of an attribute in an array of objects
I'm looking for a really quick, clean and efficient way to get the max "y" value in the following JSON slice:
13 Answers
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What does the ^ operator do in Java?
What function does the ^ (caret) operator serve in Java?
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Can someone give an example of cosine similarity, in a very simple, graphical way?
Cosine Similarity article on Wikipedia
10 Answers
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Get records with max value for each group of grouped SQL results
How do you get the rows that contain the max value for each grouped set?
17 Answers
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Show diff between commits
I am using Git on Ubuntu 10.04 (Lucid Lynx).
11 Answers
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How to force 'cp' to overwrite directory instead of creating another one inside?
I'm trying to write a Bash script that will overwrite an existing directory. I have a directory foo/ and I am trying to overwrite bar/ with it. But when I do this:
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In Python, what is the difference between “.append()” and “+= []”?
What is the difference between:
12 Answers
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Passing command line arguments to R CMD BATCH
I have been using R CMD BATCH my_script.R from a terminal to execute an R script. I am now at the point where I would like to pass an argument to the command, but am having some issues getting it working. If I do R CMD BATCH my_script.R blabla then blabla becomes the output file, rather th...
Normalize data in pandas
Suppose I have a pandas data frame df :
5 Answers
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Remove duplicate rows in MySQL
I have a table with the following fields:
25 Answers
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