gnuplot - überspringen ersten beiden Zeilen

Question

Sagen wir, ich habe eine .csv-Datei, die wie folgt aussieht:

<empty> <empty> 8  <empty> <empty> <empty> 16  <empty> ... 
<empty> X  A  B  C  D  A  B  ... 
<inval> <x1> <y8A1> <y8B1> <y8C1> <y8D1> <y16A1> <y16B1> ... 
<inval> <x2> <y8A2> <y8B2> <y8C2> <y8D2> <y16A2> <y16B2> ... 
...  ...  ...  ...  ...  ...  ...  ... 

zB:

,,8,,,,16,,,,32,,,,48,,,,64,,, 
,"clients","Tput – avg","Tput-std","Rtime-avg","Rtime-std","Tput – avg","Tput-std","Rtime-avg","Rtime-std","Tput – avg","Tput-std","Rtime-avg","Rtime-std","Tput – avg","Tput-std","Rtime-avg","Rtime-std","Tput – avg","Tput-std","Rtime-avg","Rtime-std" 
10,50,9039.0819672131,433.6998870707,5887.1590163935,6804.7096885246,10801.1065573771,484.5072480861,4935.1245901639,4391.0008360656,10280.6721311475,495.4616072373,5171.7918032787,5172.7538688525,10142.2131147541,599.0469547239,5312.6901639344,6127.9184590164,9556.3524590164,600.6814146608,5730.8081967213,7182.2055245902 
30,150,8809.0163934426,460.0830843491,17358.5344262295,25936.6244098361,14158.1229508197,718.1770594822,10958.9131147541,10945.2590163934,14780.737704918,835.4988255869,10563.8032786885,7641.2886065574,15027.8196721311,850.0582701307,10332.4655737705,7341.2337868853,14616.6885245902,866.1246635524,10659.8770491803,8198.0366229508 
50,250,9353.9672131148,432.8189015728,27318.1,45790.2556229508,13702.3852459016,707.6747849944,18785.6590163934,23324.8483770492,15943.6557377049,677.4546640345,16035.2606557377,10461.7719180328,15860.1721311475,830.4099751453,16213.0213114754,10124.9612131148,15326.0163934426,1031.17034143,16795.6081967213,10698.6249508197 
70,350,8881.5573770492,726.9289548887,40686.8491803279,72405.878295082,13387.4426229508,445.5236398053,26757.5327868852,32890.1623606557,16645.6885245902,626.5893434468,21494.2508196721,13007.9780327869,16789.1393442623,808.3621538696,21347.3950819672,13930.1256229508,16718.9836065574,668.181132478,21345.6196721311,12401.9711311475 
90,450,8746.4180327869,500.6200091656,52822.9016393443,93682.0274754098,13743.131147541,455.9099951486,33312.6508196721,46968.4851967213,16682.4098360656,904.7721063143,27619.7491803279,17528.359704918,17071,1066.3633936871,27044.6049180328,19224.9943606557,17149.5573770492,1053.7513907702,27140.168852459,17220.9472786885 
110,550,9005.2131147541,383.9937579276,61994.106557377,106751.630967213,13514.262295082,746.2179005263,42984.4983606558,64147.0733934426,16509.6803278689,650.1557055149,33979.7934426229,20348.3276557377,17636.5081967213,936.1630106332,32117.306557377,23076.5144590164,14541.9180327869,2804.2695750414,40039.3770491803,29381.2578032787 
130,650,9031.3606557377,362.571900032,73081.3918032787,134146.073196721,13212.8196721311,697.9028011167,51024.2737704918,77957.3243770492,16202.8524590164,656.0559899678,40900.4983606557,27040.2254098361,18062.5573770492,1279.5387003432,37238.6868852459,25002.5473278688,17503.2786885246,1440.2490022181,38796.3524590164,29969.6093278688 

Sagen wir, ich möchte ein (x, A) -PLOT (schließlich mit einer Linie für 8, eine für 16, eine für 32, ...).

Wie überspringe ich die ersten beiden Zeilen, um zu den eigentlichen Daten zu gelangen? Ich versuchte

plot filename.".csv" u 2:3 every ::3 lc rgb "#00E80000" title "8" 

aber, dass mir noch

"plot_this.p", line 16: warning: Skipping data file with no valid points 

plot filename.".csv" u 2:3 every ::3 lc rgb "#00E80000" title "8" 
                   ^
"plot_this.p", line 16: x range is invalid 

Answer 1

gnuplot Vorgaben gibt Leerzeichen als Trennzeichen für Datenspalten in einer Datei zu verwenden. Bevor Sie versuchen, CSV (Comma Separated) Datendateien mit plotten gnuplot Sie ausführen müssen:

set datafile separator ',' 

Danach tun, Ihre erste Plotbefehl funktioniert super. Gnuplot ist relativ intelligent im Umgang mit CSV-Spaltenüberschriften.