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# File 'lib/rbbt/util/R/plot.rb', line 8
def self.ggplot(data, script = nil, width = nil, height = nil, options = {})
width ||= 3
height ||= 3
values = []
options = options.dup
sources = [:plot, :svg, options[:source]].flatten.compact
options.delete :source
field_classes = options[:field_classes]
fast = options[:fast]
if fast
save_method = "rbbt.SVG.save.fast"
else
save_method = "rbbt.SVG.save"
end
if data
data.each do |k,v|
v = Array === v ? v : [v]
next if v == "NA" or v.nil? or v.include? "NA" or v.include? nil
values = v
break
end
values = [values] unless Array === values
field_classes = values.collect do |v|
v = v.first if Array === v
case v
when FalseClass, TrueClass
"'logical'"
when Numeric
"'numeric'"
when String
if v.strip =~ /^[-+]?[\d\.]+$/
"'numeric'"
else
"'character'"
end
when Symbol
"'factor'"
else
":NA"
end
end if field_classes.nil?
if field_classes.any?
options[:R_open] ||= "colClasses=c('character'," + field_classes * ", " + ')'
else
options[:R_open] ||= "colClasses=c('character')"
end
TmpFile.with_file nil, true, :extension => 'svg' do |tmpfile|
data.R <<-EOF, sources, options
plot = { #{script} }
#{save_method}('#{tmpfile}', plot, width = #{R.ruby2R width}, height = #{R.ruby2R height})
data = NULL
EOF
Open.read(tmpfile).gsub(/(glyph\d+-\d+)/, '\1-' + File.basename(tmpfile))
end
else
TmpFile.with_file nil, true, :extension => 'svg' do |tmpfile|
R.run <<-EOF, sources, options
plot = { #{script} }
#{save_method}('#{tmpfile}', plot, width = #{R.ruby2R width}, height = #{R.ruby2R height})
data = NULL
EOF
Open.read(tmpfile).gsub(/(glyph\d+-\d+)/, '\1-' + File.basename(tmpfile))
end
end
end
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