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Cluster analysis in R: determine the optimal number of clusters
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1024
If your question is how can I determine how many clusters are appropriate for a kmeans analysi...
Analyze audio using Fast Fourier Transform
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209
The array you are showing is the Fourier Transform coefficients of the audio signal. These coef...
Convert string with commas to array
... JSON.parse("[" + string + "]");
This gives you an Array of numbers.
[0, 1]
If you use .split(), you'll end up with an Array of strings.
["0", "1"]
Just be aware that JSON.parse will limit you to the supported data types. If you need values like undefined or functions, you'd need to use ...
Change URL parameters
...ed Sujoy's code to make up a function.
/**
* http://stackoverflow.com/a/10997390/11236
*/
function updateURLParameter(url, param, paramVal){
var newAdditionalURL = "";
var tempArray = url.split("?");
var baseURL = tempArray[0];
var additionalURL = tempArray[1];
var temp = "";
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What is __gxx_personality_v0 for?
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edited Aug 20 '17 at 18:58
curiousguy
7,13322 gold badges3535 silver badges5151 bronze badges
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How do I set the version information for an existing .exe, .dll?
...set!
– twasbrillig
Nov 18 '14 at 22:09
2
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How to merge two sorted arrays into a sorted array? [closed]
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Sumit Singh
23k88 gold badges7070 silver badges9797 bronze badges
answered May 11 '11 at 1:19
Greg HewgillGreg Hewgill
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How to use sed to replace only the first occurrence in a file?
...ript---
or, if you prefer: Editor's note: works with GNU sed only.
sed '0,/foo/s//bar/' file
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Code for a simple JavaScript countdown timer?
I want to use a simple countdown timer starting at 30 seconds from when the function is run and ending at 0. No milliseconds. How can it be coded?
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