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Find Oracle JDBC driver in Maven repository

... 22 Answers 22 Active ...
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Cluster analysis in R: determine the optimal number of clusters

... 1024 If your question is how can I determine how many clusters are appropriate for a kmeans analysis...
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How to merge 2 JSON objects from 2 files using jq?

...t will merge them recursively. For example, jq -s '.[0] * .[1]' file1 file2 Important: Note the -s (--slurp) flag, which puts files in the same array. Would get you: { "value1": 200, "timestamp": 1382461861, "value": { "aaa": { "value1": "v1", "value2": "v2", "value3...
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What are bitwise shift (bit-shift) operators and how do they work?

... 1728 The bit shifting operators do exactly what their name implies. They shift bits. Here's a brie...
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How to validate IP address in Python? [duplicate]

... answered Nov 25 '08 at 23:50 DustinDustin 78.2k1717 gold badges103103 silver badges131131 bronze badges ...
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Alphabet range in Python

... 822 >>> import string >>> string.ascii_lowercase 'abcdefghijklmnopqrstuvwxyz' I...
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Measuring the distance between two coordinates in PHP

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How to convert a string or integer to binary in Ruby?

... number to a string representing the number in the base specified: 9.to_s(2) #=> "1001" while the reverse is obtained with String#to_i(base): "1001".to_i(2) #=> 9 share | improve this ans...
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How do you do relative time in Rails?

... i.e. if given a certain Time class, it can calculate "30 seconds ago" or "2 days ago" or if it's longer than a month "9/1/2008", etc. ...
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Resizing an image in an HTML5 canvas

...g.height; elem.style.display = "none"; this.ctx = elem.getContext("2d"); this.ctx.drawImage(img, 0, 0); this.img = img; this.src = this.ctx.getImageData(0, 0, img.width, img.height); this.dest = { width : sx, height : Math.round(img.height * sx / img.width), ...