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Fastest way to list all primes below N
...an email to: info [at] zerovolt [dot] com.'''
__smallp = ( 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59,
61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139,
149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227,
229, 233,...
How to check if a model has a certain column/attribute?
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Andy StewartAndy Stewart
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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
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MariusMarius
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Why does the is operator return false when given null?
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answered Oct 3 '11 at 20:46
Eric LippertEric Lippert
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Making code internal but available for unit testing from other projects
...ended? Why?
– jmelhus
Dec 14 '13 at 11:47
4
Well, why limiting tests to debug builds ?
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GitHub: make fork an “own project”
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edited Aug 22 '19 at 16:11
larsks
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What is the difference between 'java', 'javaw', and 'javaws'?
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answered Nov 19 '11 at 14:43
Andrew ThompsonAndrew Thompson
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To find whether a column exists in data frame or not
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11
To get the grepl a bit more precise, you could use grepl("^d$",names(dat)), to ensure that a column with name dd does not return TRUE.
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Bash script to receive and repass quoted parameters
...93C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.69...
Javascript Shorthand for getElementById
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answered Jun 18 '11 at 20:44
user113716user113716
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