r2.dvi

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きみえふしはら
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1 ( ( ( Ruby ( ( 2 Chris Pine,, 2,, Yugui, Ruby,, Ruby 1 ( Ruby ( 2 ( i i j ( ) /( (regular expression Ruby /.../ ( 1

2 if / / =~ =~ else e * c --- ( * * [c 1 c 2 c 3...] --- c 1, c 2, c 3... * [c 1 -c 2 ] --- c 1 c 2 * [^...] ( ) * e* --- e 0 * e? --- e 0 1 * e+ --- e 1 * e 1 e e 1 e 2 * ^e --- e * e$ --- e * (e) --- e (\+1 * \n --- * \r --- * \s --- ( ) * \d --- ( ) * \w --- ( ) [] /( \ \\ 3 \ ( \ aaa bbb \ ccc ddd ee\ e fg => aaa bbb ccc ddd eee fg 2

3 def readdata open( test2.txt ) do f f.each_line do s r.push(s.chop) def writedata(a) a.each do s puts(s) def contlines(a) ; l = "" a.each do s if s =~ /\\$/ then l += s.chop else l += s; r.push(l); l = "" if l!= "" then r.push(l) $data1 = readdata $data2 = contlines($data1) writedata($data2) contlines l \ l l r if l \ ( l ( a. # b. 2 c. a. \ \ d. a. b. ( e. a. 1 \ ( 2 s 2 s[1..-1] 3

4 f. a ( grain2012.txt # ,830, ,961, ,500, ,908, ( ( s =~ /^\s*\d+\s+([^\s]+)\s+([0-9,]+)$/ 3 "# this is a comment" " 1 Japan 123,456,789 " \s* \d+ \s+ [^\s]+ \s+ [0-9,]+ ( ) ( ) $1: "Japan" $2: "123,456,789" 1: 1 \s*\d+\s+[^\s]+\s+[0-9,]+ 3 Web 4

5 , 1 2 (/^ $/) 1 2 ( ;(...); $1 $2 def readdata open( grain2012.txt ) do f f.each_line do s r.push(s.chop) def pickdata(a) a.each do s if s =~ /^#/ then # do nothing elsif s =~ /^\s*\d+\s+([^\s]+)\s+([0-9,]+)/ then name = $1; quant = $2 r.push([quant.gsub(/,/, ).to_i, name]) else $stderr.puts("wrong format: #{s}") def showdata(a) a.each do d puts "#{d[0]} #{d[1]}" $data1 = readdata $data2 = pickdata($data1) showdata($data2) readdata ppickdata r # ( ( (\s ( 1 $1 1 $2 1 OK 2 name quant ( $1 2 r r 5

6 .gsub(/,/, (.to i wrong format: ( return showdata ( 2 1 ( 0 1 2, CSV ( def totaldata(a) sum = 0.0 a.each do d sum += d[0] return sum 7 \s+ \s 8 a. avgdata b. sddata Math.sqrt( 4 c. maxmindata(2 d. mediandata 5 e. 1 3 quantdata( sort.sort a ( 2 4 m σ i(x i m) 2 /n ( 6

7 a.sort! # b = a.sort #!, 2 $data2.sort! do x, y x[0] <=> y[0] x y 2 ( 2 ( x ( ) 0... x y ( ) x ( ) <=> 2 ( ( $data2.sort! do x, y y[0] <=> x[0] $data2.sort! do x, y x[1] <=> y[1] 6 ( ) (same for readdata, pickdata) def histdata(a, w, m) r = Array.new(m+1, 0) a.each do d n = d[0].to_i / w if n >= r.size then n = r.size-1 r[n] += 1 def showhist(h, w) h.each_index do i printf("%12d %4d\n", w*i, h[i]) $data1 = readdata $data2 = pickdata($data1) $hist1 = histdata($data2, , 20) showhist($hist1, ) readdata pickdata histdata w m ( m+1 0 7

8 w n ( n 1 showdata printf C ( %nd n 10 w m 11 ( / a. b. ( 100% c. b ( 1 ID,,,,,, 1 # #panel,shop,receipt,time,count,amount,itemname 15360,20,643,20,1,138, 22568,22,7093,11,1,98, 28192,22,5043,16,1,98,,, 8

9 def readdata open( ITEM1.csv ) do f f.each_line do s r.push(s.chop) def pickdata(x) x.each do s if s =~ /^#/ then # do nothing elsif s =~/^(\d+),(\d+),(\d+),(\d+),(\d+),(\d+),(.+)$/ then a,b,c,d,e,f,g = $1,$2,$3,$4,$5,$6,$7 r.push([a.to_i, b.to_i, c.to_i, d.to_i, e.to_i, f.to_i, g]) else $stderr.puts("wrong format: #{s}"); def show1(d) d.each do a printf("%3d %8d %s\n", a[4], a[5], a[6]); $data1 = readdata $data2 = pickdata($data1) show1($data2) readdata pickdata a. b. c. d. e ( 9

10 (hash 2 (key (value ( h = Hash.new(0) h[ a ] = 1 h = { a => 3, bx = 1} h[ bx ] = 1 h[ a ] = h[ bx ] + 2 key a bx value 3 1 2: Hash.new(0 2 ( Hash.new(00 0 ( 0 2 { =>, =>, } def readdata open( ITEM1.csv ) do f f.each_line do s r.push(s.chop) def pickdata(x) x.each do s if s =~ /^#/ then # do nothing elsif s =~/^(\d+),(\d+),(\d+),(\d+),(\d+),(\d+),(.+)$/ then a,b,c,d,e,f,g = $1,$2,$3,$4,$5,$6,$7 r.push([a.to_i, b.to_i, c.to_i, d.to_i, e.to_i, f.to_i, g]) else $stderr.puts("wrong format: #{s}"); def show2(d) total = Hash.new(0); max = 0; maxid = 0 d.each do a total[a[0]] += a[5] if total[a[0]] > max then max = total[a[0]]; maxid = a[0] printf("max = %d, panel = %d\n", total[maxid], maxid); $data1 = readdata $data2 = pickdata($data1) show2($data2) 10

11 total id ( 0 total id id 15 readdata pickdata a. b. c. ( :.size d. e. ID ( : ( 1 ) gssm.k-kiso ( 11

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