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Calculating Pearson correlation and significance in Python
...ataset be normally distributed. Like other correlation
coefficients, this one varies between -1 and +1 with 0 implying no
correlation. Correlations of -1 or +1 imply an exact linear
relationship. Positive correlations imply that as x increases, so does
y. Negative correlations imply that as x in...
Do Google refresh tokens expire?
... that a granted token might no longer work. A token might stop working for one of these reasons: The user has revoked access. The token has not been used for six months. The user account has exceeded a certain number of token requests. There is currently a 25-token limit per Google user account. If...
String concatenation vs. string substitution in Python
...ance, is this (becoming more) a stylistic decision rather than a practical one?
9 Answers
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What's the difference between a proc and a lambda in Ruby?
And when would you use one rather than the other?
8 Answers
8
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What is the difference between Strategy design pattern and State design pattern?
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Honestly, the two patterns are pretty similar in practice, and the defining difference between them tends to vary depending on who you ask. Some popular choices are:
States store a reference to the context object that contai...
while (1) Vs. for (;;) Is there a speed difference?
... I love that gcc substituted puts() for printf(), since there is only one argument and therefore nothing to format -- faster and more secure! (gcc also checks formatting tags against the variable argument list.)
– Lee D
May 26 '11 at 11:06
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Python's json module, converts int dictionary keys to strings
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This is one of those subtle differences among various mapping collections that can bite you. JSON treats keys as strings; Python supports distinct keys differing only in type.
In Python (and apparently in Lua) the keys to a mapping...
Some font-size's rendered larger on Safari (iPhone)
Are there CSS or other reasons why Safari/iPhone would ignore some font-size settings? On my particular website Safari on the iPhone renders some font-size:13px text larger than font-size:15px text. Does it maybe not support font-size on some elements?
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What is the quickest way to HTTP GET in Python?
...the content will be a string? I am searching the documentation for a quick one-liner like:
14 Answers
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How to wait for all goroutines to finish without using time.Sleep?
...he counter when the goroutine completes.
defer wg.Done()
// Fetch the URL.
http.Get(url)
}(url)
}
// Wait for all HTTP fetches to complete.
wg.Wait()
}
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