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Standardize data columns in R

I have a dataset called spam which contains 58 columns and approximately 3500 rows of data related to spam messages. 15 ...
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How to remove all whitespace from a string?

So " xx yy 11 22 33 " will become "xxyy112233" . How can I achieve this? 9 Answers ...
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How to check if all elements of a list matches a condition?

...which is the builtin for this situation. We combine this with a generator expression to produce the result you want cleanly and efficiently. For example: >>> items = [[1, 2, 0], [1, 2, 0], [1, 2, 0]] >>> all(flag == 0 for (_, _, flag) in items) True >>> items = [[1, 2, 0]...
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Suppress/ print without b' prefix for bytes in Python 3

... is to manually slice off the b'' from the resulting repr(): >>> x = b'\x01\x02\x03\x04' >>> print(repr(x)) b'\x01\x02\x03\x04' >>> print(repr(x)[2:-1]) \x01\x02\x03\x04 share | ...
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Is there a numpy builtin to reject outliers from a list

...a)] TypeError: only integer scalar arrays can be converted to a scalar index OR it just freezes my program – john ktejik Sep 16 '17 at 22:26 1 ...
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Double Iteration in List Comprehension

... I hope this helps someone else since a,b,x,y don't have much meaning to me! Suppose you have a text full of sentences and you want an array of words. # Without list comprehension list_of_words = [] for sentence in text: for word in sentence: list_of_word...
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Are PHP Variables passed by value or by reference?

...he argument name in the function definition. <?php function add_some_extra(&$string) { $string .= 'and something extra.'; } $str = 'This is a string, '; add_some_extra($str); echo $str; // outputs 'This is a string, and something extra.' ?> ...
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What is the difference between “def” and “val” to define a function

...unction on every call: val test: () => Int = { val r = util.Random.nextInt () => r } test() // Int = -1049057402 test() // Int = -1049057402 - same result def test: () => Int = { val r = util.Random.nextInt () => r } test() // Int = -240885810 test() // Int = -1002157461 - ne...
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How to make inline functions in C#

I'm using Linq To XML 6 Answers 6 ...
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How to calculate the SVG Path for an arc (of a circle)

... Expanding on @wdebeaum's great answer, here's a method for generating an arced path: function polarToCartesian(centerX, centerY, radius, angleInDegrees) { var angleInRadians = (angleInDegrees-90) * Math.PI / 180.0; r...