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Statsample::Analysis

DSL to create analysis without hazzle.

Example

an1=Statsample::Analysis.store(:first) do
  # Load excel file with x,y,z vectors
  ds=excel('data.xls')
  # See variables on ds dataset
  names(ds) 
  # Attach the vectors to workspace, like R
  attach(ds)
  # vector 'x' is attached to workspace like a method,
  # so you can use like any variable
  mean,sd=x.mean, x.sd 
  # Shameless R robbery
  a=c( 1:10)
  b=c(21:30)
  summary(cor(ds)) # Call summary method on correlation matrix
end
# You can run the analysis by its name
Statsample::Analysis.run(:first)
# or using the returned variables
an1.run
# You can also generate a report using ReportBuilder.
# .summary() method call 'report_building' on the object, 
# instead of calling text summary
an1.generate("report.html")

Public Class Methods

add_to_reportbuilder(rb, *args) click to toggle source

Add analysis +*args+ to an reportbuilder object. Without arguments, add all stored analysis Each analysis is wrapped inside a ReportBuilder::Section object This is the method is used by save() and to_text()

# File lib/statsample/analysis.rb, line 66
def self.add_to_reportbuilder(rb, *args)
  args=stored_analysis.keys if args.size==0
  raise "Analysis #{name} doesn't exists" if (args - stored_analysis.keys).size>0
  args.each do |name|
    section=ReportBuilder::Section.new(:name=>stored_analysis[name].name)
    rb_an=stored_analysis[name].add_to_reportbuilder(section)
    rb.add(section)        
    rb_an.run
  end
end
clear_analysis() click to toggle source
# File lib/statsample/analysis.rb, line 35
def self.clear_analysis
  @@stored_analysis.clear
end
last() click to toggle source
# File lib/statsample/analysis.rb, line 41
def self.last
  @@stored_analysis[@@last_analysis]
end
run(*args) click to toggle source

Run analysis +*args+ Without arguments, run all stored analysis Only ‘echo’ will be returned to screen

# File lib/statsample/analysis.rb, line 53
def self.run(*args)
  args=stored_analysis.keys if args.size==0
  raise "Analysis #{args} doesn't exists" if (args - stored_analysis.keys).size>0
  args.each do |name|
    stored_analysis[name].run
  end
end
run_batch(*args) click to toggle source

Run analysis and return to screen all echo and summary callings

# File lib/statsample/analysis.rb, line 96
def self.run_batch(*args)
  puts to_text(*args)
end
save(filename, *args) click to toggle source

Save the analysis on a file Without arguments, add all stored analysis

# File lib/statsample/analysis.rb, line 79
def self.save(filename, *args)
  rb=ReportBuilder.new(filename)
  add_to_reportbuilder(rb, *args)
  rb.save(filename)
end
store(name, opts=Hash.new,&block) click to toggle source
# File lib/statsample/analysis.rb, line 44
def self.store(name, opts=Hash.new,&block)
  raise "You should provide a block" if !block
  @@last_analysis=name
  opts={:name=>name}.merge(opts)
  @@stored_analysis[name]=Suite.new(opts,&block)
end
stored_analysis() click to toggle source
# File lib/statsample/analysis.rb, line 38
def self.stored_analysis
  @@stored_analysis
end
to_text(*args) click to toggle source

Run analysis and return as string output of echo callings Without arguments, add all stored analysis

# File lib/statsample/analysis.rb, line 89
def self.to_text(*args)
  rb=ReportBuilder.new(:name=>"Analysis #{Time.now}")
  add_to_reportbuilder(rb, *args)
  rb.to_text
end

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