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toolkit/javascript/d3/src/core/mean.js
author Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
Thu, 10 Apr 2014 14:20:23 +0200
changeset 47 c0b4a8b5a012
permissions -rw-r--r--
add toolkit.html + démonstrateurs
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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c0b4a8b5a012 add toolkit.html + démonstrateurs
Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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d3.mean = function(array, f) {
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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  var n = array.length,
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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      a,
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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      m = 0,
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parents:
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      i = -1,
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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      j = 0;
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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  if (arguments.length === 1) {
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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    while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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  } else {
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parents:
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    while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
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  }
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parents:
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  return j ? m : undefined;
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Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
parents:
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};
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