don't explode w/o data (488b93a7) · Commits · github_fork / Clip

lib/fnordmetric/ext.rb

+8 −0

Original line number	Diff line number	Diff line
		@@ -35,22 +35,30 @@ end
		class Array

		def mean
		return 0 if empty?
		inject(&:+).to_f / size
		end

		alias :average :mean

		def median
		return 0 if empty?
		(_sorted = self.dup.sort)[_sorted.size/2]
		end

		def range
		return 0 if empty?
		max - min
		end

		def mode
		return 0 if empty?
		inject({}){ \|h,v\| h[v] = h[v].to_i+1; h }.to_a
		.sort{ \|a,b\| b.last <=> a.last }[0][0]
		end

		def emtpy
		self.size == 0
		end

		end
		No newline at end of file

+1 −1

Original line number	Diff line number	Diff line
		@@ -42,7 +42,7 @@
		.number
		%span.desc Trend
		%span.value
		.ui_trend{:"data-trend" => @mmm_timeseries_arr[0][-1][:avg].mean / (@mmm_timeseries_arr[-1][-1][:avg].mean - @mmm_timeseries_arr[0][-1][:avg].mean) }
		.ui_trend{:"data-trend" => (@mmm_timeseries_arr[0][-1][:avg].mean / (@mmm_timeseries_arr[-1][-1][:avg].mean - @mmm_timeseries_arr[0][-1][:avg].mean) rescue 0) }
		.number
		%span.desc Range
		%span.value.ui_value{:"data-value" => @values.range }