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What is q=0.5 in Accept* HTTP headers?
What do these 'q=%f' mean?
3 Answers
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How to check whether a string is Base64 encoded or not
I want to decode a Base64 encoded string, then store it in my database. If the input is not Base64 encoded, I need to throw an error.
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How can I round down a number in Javascript?
How can I round down a number in JavaScript?
11 Answers
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Remove trailing zeros
I have some fields returned by a collection as
18 Answers
18
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Cluster analysis in R: determine the optimal number of clusters
Being a newbie in R, I'm not very sure how to choose the best number of clusters to do a k-means analysis. After plotting a subset of below data, how many clusters will be appropriate? How can I perform cluster dendro analysis?
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Getting LaTeX into R Plots
I would like to add LaTeX typesetting to elements of plots in R (e.g: the title, axis labels, annotations, etc.) using either the combination of base/lattice or with ggplot2 .
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How do you remove a Cookie in a Java Servlet
How do you remove a cookie in a Java servlet?
6 Answers
6
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How to check if a process id (PID) exists
In a bash script, I want to do the following (in pseudo-code):
10 Answers
10
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(-2147483648> 0) returns true in C++?
-2147483648 is the smallest integer for integer type with 32 bits, but it seems that it will overflow in the if(...) sentence:
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Combining two Series into a DataFrame in pandas
I have two Series s1 and s2 with the same (non-consecutive) indices. How do I combine s1 and s2 to being two columns in a DataFrame and keep one of the indices as a third column?
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