Sha256: 6f3c917e1b320e448f4f5afcb252577cfe9300c2d3ae1c77255e5ccdd06d7b4b
Contents?: true
Size: 1.21 KB
Versions: 20
Compression:
Stored size: 1.21 KB
Contents
# TagCloud.rb
# July 6, 2007
#
class TagCloud
def calculate_max_min
@max=nil
@min=nil
for key in @histogram.keys
if @min==nil || @histogram[key]<@min
@min=@histogram[key]
end
if @max==nil || @histogram[key]>@max
@max=@histogram[key]
end
end
end
def initialize(tag_data)
@histogram=tag_data.inject(Hash.new(0)){|hash,x| hash[x.tag_name]+=1;hash}
@tag_data=tag_data.sort_by{|x|[@histogram[x.tag_name],x.tag_name]}
calculate_max_min
while @histogram.size>40
@histogram.reject!{|key, value| value == @min }
calculate_max_min
end
@normal_histogram={}
if tag_data.length>0
range=@max-@min
for key in @histogram.keys
if range==0
@normal_histogram[key]=2
else
@normal_histogram[key]=((@histogram[key]-@min)*4)/range
end
end
@tags=@histogram.keys
@tags.sort!
else
@tags=[]
end
end
def tags
return @tags
end
def get_count(tag_name)
return @histogram[tag_name]
end
def get_magnitude(tag_name)
return @normal_histogram[tag_name]
end
end
Version data entries
20 entries across 20 versions & 2 rubygems