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Girth Volume
8.3 10.3
8.3 10.3
8.8 10.2
10.5 16.4
10.7 18.8
10.8 19.7
11 15.6
11 18.2
11.1 22.6
11.2 19.9
11.3 24.2
11.4 21
11.4 21.4
11.7 21.3
12 19.1
12.9 22.2
12.9 33.8
13.3 27.4
13.7 25.7
13.8 24.9
14 34.5
14.2 31.7
14.5 36.3
16 38.3
16.3 42.6
17.3 55.4
17.5 55.7
17.9 58.3
18
18 51
20.6 77
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# && 両æ¹ã®æ¡ä»¶ãæºããè¡ã ããæ½åº awk "/10/ && /16/" trees.txt >10.5 16.4 # || çæ¹ã©ã¡ããã§ãæ¡ä»¶ãæºãããè¡ãæ½åº awk "/10/ || /16/" trees.txt >8.3 10.3 >8.3 10.3 >8.8 10.2 >10.5 16.4 >10.7 18.8 >10.8 19.7 >16 38.3 >16.3 42.6
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# && 両æ¹ã®æ¡ä»¶ãæºããè¡ã ããæ½åº awk "$1~/10/ && $2~/18/" trees.txt >10.7 18.8 # || çæ¹ã©ã¡ããã§ãæ¡ä»¶ãæºãããè¡ãæ½åº awk "$1~/10/ || $2~/18/" trees.txt >10.5 16.4 >10.7 18.8 >10.8 19.7 >11 18.2
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awk /12/,/14/ trees.txt >12 19.1 >12.9 22.2 >12.9 33.8 >13.3 27.4 >13.7 25.7 >13.8 24.9 >14 34.5
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# çµè¾¼å¤æ° NR #ç¾å¨èªã¿è¾¼ãã§ããè¡æ° NF #ç¾å¨èªã¿è¾¼ãã§ããè¡ã®åæ° -F #ãã¡ã¤ã«ã»ãã¬ã¼ã¿æå®ãããã©ã«ãã¯åè§ã¹ãã¼ã¹ãã¿ãã,ãæå®ãããã¨ã§CSVãã¡ã¤ã«ã«å¯¾å¿ length #ç¾å¨èªã¿è¾¼ãã§ããè¡ã®æåæ°
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# CSVãã¡ã¤ã«ãèªã # -Fãªãã·ã§ã³ãç¨ãã¦ã»ãã¬ã¼ã¿ã,(ã«ã³ã)ã«å¤æ´ããäºã§ # CSVãã¡ã¤ã«ã®Nåç®ãæå®åºæ¥ã awk -F , $1~/10/ trees.txt # 3è¡ç®ä»¥ä¸ãåãåºã awk "NR<=3" trees.txt >Girth Volume >8.3 10.3 >8.3 10.3 # åæ°ã2æªæºã®è¡ãåãåºã # ãããç¨ããã°ããNåããçã®ãã¼ã¿ããNåæªæºãããã¼ã¿ãå ¥ã£ã¦ããªãè¡ã # ã¤ã¾ãæ¬ æå¤ãå«ãè¡ãä½è¡ç®ã«ããã©ã®ãããªãã¼ã¿ããæ´ãåºãã # ã¨ããå¦çãå¯è½ã«ãªãã¾ãã awk "NF<2 {print NR, $0}" trees.txt >27 >28 >32 18 # lengthã0ããä¸ãã¤ã¾ã空è¡ä»¥å¤ãæ½åºãã¾ãã awk "length>0" trees.txt >Girth Volume >8.3 10.3 >8.3 10.3 > ... çç¥
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awk "before != $0 {print; before = $0}" trees.txt >Girth Volume >8.3 10.3 # éè¤è¡ãæ¶ãã¦ãã >8.8 10.2 >10.5 16.4
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# 1åç®ã ããåºåãã¾ã awk "{print $1}" trees.txt >Girth >8.3 >8.3 >8.8 > ... çç¥ # 1åç®ã¨2åç®ãå ¥ãæ¿ãã¦è¡¨ç¤ºãã¾ãã awk "{print $2,$1}" trees.txt >Volume Girth >10.3 8.3 >10.3 8.3 >10.2 8.8 > ... çç¥ # 1åç®ã¨2åç®ã§è¨ç®ããçµæãåºåãã¾ãã # æãç®ã¯*, å²ç®ã¯/ã§è¡¨ç¾ãã¾ãã awk "{print $0,$1*$2}" trees.txt # 1è¡ç®ã¯æååå士ãªã®ã§æãç®ã®çµæã¯0ã«ãªãã¾ãã # æ°å¤ä»¥å¤ã§è¨ç®ããã¨0ã¨ãªããã¨ããããã¾ãã >Girth Volume 0 >8.3 10.3 85.49 >8.3 10.3 85.49 >8.8 10.2 89.76 > ... çç¥ # æ¶è²»ç¨ãæãããªã©ã®è¨ç®ãå¯è½ã§ã awk "{print $1*1.08}" trees.txt >0 >8.964 >8.964 >9.504 > ... çç¥ # åè¡ã«è¡æ°ãä»ä¸ãã awk "{print NR, $0}" trees.txt >1 Girth Volume >2 8.3 10.3 >3 8.6 10.3 >4 8.8 10.2 # çµè¾¼å¤æ°ãç¨ãã¦ãã¼ã¿ãå å·¥ããã # ä»åã¯åè¡ã®å é ã«ãã¡ã¤ã«åãä»ä¸ãã¾ãã # ããããã±ã¼ã¹ã¨ãã¦ããã¡ã¤ã«åã«æ¥ä»ã¯å ¥ã£ã¦ããã # ãã¼ã¿ã®ä¸èº«ã«æ¥ä»ãå ¥ã£ã¦ãããã # å¾ã§ãã¼ã¸ãããã¨ãã¦å°ãæãããã¾ããããããæã«ä¾¿å©ã§ãã awk "{print FILENAME, $0}" trees.txt >trees.txt Girth Volume >trees.txt 8.3 10.3 >trees.txt 8.3 10.3 >trees.txt 8.8 10.2 # çµè¾¼é¢æ°ãç¨ãããã¼ã¿å å·¥ã # gsubã¨ãã颿°ãç¨ãã¦æååã®ç½®æãå¯è½ã§ãã # gsubã§ç½®æããå ´å㯠# gsub(ç½®æå¯¾è±¡ã®æåå,ç½®æå¾ã®æåå,ç½®æå¯¾è±¡ã®å) # ã¨æå®ãã¾ãã # ããã§ã¯$0(è¡å ¨ä½)ã®8ãxxxã¨ããæååã«ç½®æãã # ãã®å¾å¤ææ¸ã¿ã®ãã¼ã¿ã表示ãã¦ãã¾ãã # è¤æ°ã®å¦çãè¡ãå ´åã¯;ã§ç¹ãã¾ãã # ãã®æååã®ç½®æã¯æå®ãè¤éã§ããã # å¼·åãã¤æ¬å½ã«è¯ã使ãããæ¯éè¦ãã¦ä¸ããã awk "{gsub(8,\"xxx\",$0);print $0}" trees.txt >Girth Volume >xxx.3 10.3 >xxx.3 10.3 >xxx.xxx 10.2
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# é å a[i] = x a[i, j] = x # ã§å¤æ¬¡å é åå®ç¾©å¯è½ã awk "BEGIN{a[0,1,2,3,4,5,6,7,8,9]=100}{print a[0,1,2,3,4,5,6,7,8,9]}" p # ã¨ä½æ¬¡å ã§ãOK delete a[0] # ã§é åã®ä¸èº«ãæ¶ãã
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# ã©ã³ãã ãµã³ããªã³ã° awk "BEGIN{srand()} {line[NR] = $0} END{for(;i<100;i++){print line[1+int(rand()*NR)]}}" p # ã·ã£ããã« awk "BEGIN{srand()} {line[NR] = $0} END{for(;i<1000;i++){r=1+int(rand()*NR);s=1+int(rand()*NR);tmp=line[r];line[r]=line[s];line[s]=tmp};for(t in line)print line[t]}" p # ã·ã£ããã«ãç¨ããéè¤ãªãã©ã³ãã ãµã³ããªã³ã° awk "BEGIN{srand()} {line[NR] = $0} END{for(;i<1000;i++){r=1+int(rand()*NR);s=1+int(rand()*NR);tmp=line[r];line[r]=line[s];line[s]=tmp};for(t in line)print line[t]}" p | awk "NR <= 5" # max, min awk "NR==1{min=$1;max=$1}{if(max<$1)max=$1;if(min>$1)min=$1}END{print max,min}" p # ç®è¡å¹³åãä¸å¤®å¤(å¶æ°èæ ®ç¡ã)ãæé »å¤ awk "{avg+=$1;median[NR]=$1;mode[$1]++}END{asort(mode, keys);asort(median);max=keys[length(keys)];print \"mean\",avg/NR;print \"median\",median[int(NR/2)];for(i in mode){if(max==mode[i])print \"mode\",i}}" p # äºæ°è¦ç´(ç®±ã²ãå³ç¨) awk "NR==1{min=$1;max=$1}{if(max<$1)max=$1;if(min>$1)min=$1;percentile[NR]=$1}END{asort(percentile);print max,percentile[int(NR*0.75)],percentile[int(NR*0.5)],percentile[int(NR*0.25)],min}" p # å差平æ¹å awk "{d[NR]=$1;avg+=$1}END{a=avg/NR;for(i in d)s+=(d[i]-a)^2;print s}" p # 忣 awk "{d[NR]=$1;avg+=$1}END{a=avg/NR;for(i in d)s+=(d[i]-a)^2;print s/(NR-1)}" p # åå·®ç©å awk "{dx[NR]=$1;dy[NR]=$2;avg_x+=$1;avg_y+=$2}END{ax=avg_x/NR;ay=avg_y/NR;for(i=1;i<=NR;i++){s+=(dx[i]-ax)*(dy[i]-ay)};print s}" p # å ±åæ£ awk "{dx[NR]=$1;dy[NR]=$2;avg_x+=$1;avg_y+=$2}END{ax=avg_x/NR;ay=avg_y/NR;for(i=1;i<=NR;i++){s+=(dx[i]-ax)*(dy[i]-ay)};print s/(NR-1)}" p # æ¨æºåå·® awk "{d[NR]=$1;avg+=$1}END{a=avg/NR;for(i in d)s+=(d[i]-a)^2;print sqrt(s/(NR-1))}" p # ãã¢ã½ã³ã®ç©çç¸é¢ä¿æ° awk "{dx[NR]=$1;dy[NR]=$2;avg_x+=$1;avg_y+=$2}END{ax=avg_x/NR;ay=avg_y/NR;for(i=1;i<=NR;i++){s+=(dx[i]-ax)*(dy[i]-ay);sx+=(dx[i]-ax)^2;sy+=(dy[i]-ay)^2};print s/(NR-1)/sqrt((sx/(NR-1))*(sy/(NR-1)))}" p # 度æ°åå¸ãbinãé©å½ã«èª¿æ´ãã¦ã awk "BEGIN{bin=1.0}{f[int($1/bin)]++}END{for(i in f)print i*bin,f[i]}" p # åå帰 awk "{dx[NR]=$1;dy[NR]=$2;avg_x+=$1;avg_y+=$2}END{ax=avg_x/NR;ay=avg_y/NR;for(i=1;i<=NR;i++){s+=(dx[i]-ax)*(dy[i]-ay);sx+=(dx[i]-ax)^2;sy+=(dy[i]-ay)^2};print \"åå¸°ä¿æ°\",s/sx,\"åç\",ay-s/sx*ax,\"決å®ä¿æ°\",(s/(NR-1)/sqrt((sx/(NR-1))*(sy/(NR-1))))^2}" p # ã¯ã¼ãã«ã¦ã³ã awk "{for(i=NF;i;i--)a[$i]++}END{for(w in a)print w,a[w]}" p
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AWK Users JP :: 日本の AWK ユーザのためのハブサイト

sed & awkããã°ã©ãã³ã° æ¹è¨ç (A nutshell handbook)
- ä½è : Dale Dougherty,Arnold Robbins,ç¦å´ä¿å
- åºç社/ã¡ã¼ã«ã¼: ãªã©ã¤ãªã¼ã»ã¸ã£ãã³
- çºå£²æ¥: 1997/10/01
- ã¡ãã£ã¢: 大忬
- è³¼å ¥: 2人 ã¯ãªãã¯: 48å
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AWKの覚書き -
https://www.gnu.org/software/gawk/manual/gawk.pdf
AWK Users JP :: ある平均値の正規分布のサンプル
AWK Users JP :: 重みを付けて乱択する
AWK Users JP :: 簡易ダウンローダー
AWK Users JP :: 中置記法から S 式への変換
AWK Users JP :: awk でアスキーアート画像を生成する
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