Sha256: 25d900f24bddbc16f8c973704f4ca1a53923eae33ed556a56b11bc2091f8c6e0
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Versions: 7
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Stored size: 1.19 KB
Contents
require 'spout/helpers/array_statistics'
require 'spout/helpers/table_formatting'
module Spout
module Helpers
class ChartTypes
def self.get_bucket(buckets, value)
return nil if buckets.size == 0 or not value.kind_of?(Numeric)
buckets.each do |b|
return "#{b[0]} to #{b[1]}" if value >= b[0] and value <= b[1]
end
if value <= buckets.first[0]
"#{buckets.first[0]} to #{buckets.first[1]}"
else
"#{buckets.last[0]} to #{buckets.last[1]}"
end
end
def self.continuous_buckets(values)
values.select!{|v| v.kind_of? Numeric}
return [] if values.count == 0
minimum_bucket = values.min
maximum_bucket = values.max
max_buckets = 12
bucket_size = ((maximum_bucket - minimum_bucket) / max_buckets.to_f)
precision = (bucket_size == 0 ? 0 : [-Math.log10(bucket_size).floor, 0].max)
buckets = []
(0..(max_buckets-1)).to_a.each do |index|
start = (minimum_bucket + index * bucket_size)
stop = (start + bucket_size)
buckets << [start.round(precision),stop.round(precision)]
end
buckets
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems