create scatter plot












1















file (1. arg) will create (scatter plot) for n. column (x-axis, 2. arg) and m. column (y-axis, 3. arg)



function is called myfun sourcefile 1 3 for scatter plot of 1. and 3. column from file sourcefile.



#!/bin/bash/gnuplot



myfun(){

 plot "$1" using $2:$3

}

myfun sourcefile 1 3


In gnuplot> plot sourcefile using 1:3 works perfectly. I want it to run inside the function. How?






bash scripts functions gnuplot plot







share|improve this question





























    1















    file (1. arg) will create (scatter plot) for n. column (x-axis, 2. arg) and m. column (y-axis, 3. arg)



    function is called myfun sourcefile 1 3 for scatter plot of 1. and 3. column from file sourcefile.



    #!/bin/bash/gnuplot
    

    
myfun(){
    
 plot "$1" using $2:$3
    
}
    
myfun sourcefile 1 3


    In gnuplot> plot sourcefile using 1:3 works perfectly. I want it to run inside the function. How?






    bash scripts functions gnuplot plot







    share|improve this question



























      1












      1








      1








      file (1. arg) will create (scatter plot) for n. column (x-axis, 2. arg) and m. column (y-axis, 3. arg)



      function is called myfun sourcefile 1 3 for scatter plot of 1. and 3. column from file sourcefile.



      #!/bin/bash/gnuplot
      

      
myfun(){
      
 plot "$1" using $2:$3
      
}
      
myfun sourcefile 1 3


      In gnuplot> plot sourcefile using 1:3 works perfectly. I want it to run inside the function. How?






      bash scripts functions gnuplot plot







      share|improve this question
















      file (1. arg) will create (scatter plot) for n. column (x-axis, 2. arg) and m. column (y-axis, 3. arg)



      function is called myfun sourcefile 1 3 for scatter plot of 1. and 3. column from file sourcefile.



      #!/bin/bash/gnuplot
      

      
myfun(){
      
 plot "$1" using $2:$3
      
}
      
myfun sourcefile 1 3


      In gnuplot> plot sourcefile using 1:3 works perfectly. I want it to run inside the function. How?






      bash scripts functions gnuplot plot




      bash scripts functions gnuplot plot






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 9 '18 at 8:39









      karel

      57.8k12128146




      57.8k12128146










      asked Jun 29 '15 at 14:47









      Martin YeboahMartin Yeboah

      10619




      10619






















          2 Answers
          2






          active

          oldest

          votes


















          2














          I'd suggest using a shell here document in this case



          #!/bin/bash
          

          
function myfun {
          
cat << EOF | gnuplot -p
          
plot "$1" using $2:$3
          
EOF
          
}


          Then



          myfun sourcefile 1 3





          share|improve this answer
























          • thanks, but anytime I execute it, I get the script on the screen. No graph :/

            – Martin Yeboah
            Jun 29 '15 at 17:04











          • Thanks soo much :) It now somehow works :D :D :D :D :D :D :D

            – Martin Yeboah
            Jun 29 '15 at 17:07











          • what is "E0F" ? and why do we need it ? also <<

            – Martin Yeboah
            Jun 29 '15 at 17:14






          • 1





            @MartinYeboah did you read the wikipedia link? EOF is just a END_TEXT marker. You can use pretty much any string: EOF (end of file) or EOD (end of data) are just common choices

            – steeldriver
            Jun 29 '15 at 17:52



















          2














          I really do not know what kind of script is that one. Where did you find it? .../bash/gnuplot seems that someone is getting really confused.



          But if you have the file with the data, call it sourcefile, with the structure 



          whatever  x-data y-data
          
whatever  x-data y-data
          
whatever  x-data y-data


          you can have a scatter plot of column 3 versus column 2 entering gnuplot, and at the prompt using: 



          plot "sourcefile" using 2:3


          (Although your script seems to be doing plot "sourcefile" using 1:3, in contrast with your description, and without quotes which is a syntax error in gnuplot unless sourcefile is a variable containing the name of the file).



          I recommend you to read http://people.duke.edu/~hpgavin/gnuplot.html






          share|improve this answer
























          • Thank you! I can create the scatterplot in gnu-plot like how you suggested. But I want to execute it inside the function too.. :(

            – Martin Yeboah
            Jun 29 '15 at 16:26











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          2 Answers
          2






          active

          oldest

          votes








          2 Answers
          2






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          2














          I'd suggest using a shell here document in this case



          #!/bin/bash
          

          
function myfun {
          
cat << EOF | gnuplot -p
          
plot "$1" using $2:$3
          
EOF
          
}


          Then



          myfun sourcefile 1 3





          share|improve this answer
























          • thanks, but anytime I execute it, I get the script on the screen. No graph :/

            – Martin Yeboah
            Jun 29 '15 at 17:04











          • Thanks soo much :) It now somehow works :D :D :D :D :D :D :D

            – Martin Yeboah
            Jun 29 '15 at 17:07











          • what is "E0F" ? and why do we need it ? also <<

            – Martin Yeboah
            Jun 29 '15 at 17:14






          • 1





            @MartinYeboah did you read the wikipedia link? EOF is just a END_TEXT marker. You can use pretty much any string: EOF (end of file) or EOD (end of data) are just common choices

            – steeldriver
            Jun 29 '15 at 17:52
















          2














          I'd suggest using a shell here document in this case



          #!/bin/bash
          

          
function myfun {
          
cat << EOF | gnuplot -p
          
plot "$1" using $2:$3
          
EOF
          
}


          Then



          myfun sourcefile 1 3





          share|improve this answer
























          • thanks, but anytime I execute it, I get the script on the screen. No graph :/

            – Martin Yeboah
            Jun 29 '15 at 17:04











          • Thanks soo much :) It now somehow works :D :D :D :D :D :D :D

            – Martin Yeboah
            Jun 29 '15 at 17:07











          • what is "E0F" ? and why do we need it ? also <<

            – Martin Yeboah
            Jun 29 '15 at 17:14






          • 1





            @MartinYeboah did you read the wikipedia link? EOF is just a END_TEXT marker. You can use pretty much any string: EOF (end of file) or EOD (end of data) are just common choices

            – steeldriver
            Jun 29 '15 at 17:52














          2












          2








          2







          I'd suggest using a shell here document in this case



          #!/bin/bash
          

          
function myfun {
          
cat << EOF | gnuplot -p
          
plot "$1" using $2:$3
          
EOF
          
}


          Then



          myfun sourcefile 1 3





          share|improve this answer













          I'd suggest using a shell here document in this case



          #!/bin/bash
          

          
function myfun {
          
cat << EOF | gnuplot -p
          
plot "$1" using $2:$3
          
EOF
          
}


          Then



          myfun sourcefile 1 3






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jun 29 '15 at 16:49









          steeldriversteeldriver

          66.2k11106179




          66.2k11106179













          • thanks, but anytime I execute it, I get the script on the screen. No graph :/

            – Martin Yeboah
            Jun 29 '15 at 17:04











          • Thanks soo much :) It now somehow works :D :D :D :D :D :D :D

            – Martin Yeboah
            Jun 29 '15 at 17:07











          • what is "E0F" ? and why do we need it ? also <<

            – Martin Yeboah
            Jun 29 '15 at 17:14






          • 1





            @MartinYeboah did you read the wikipedia link? EOF is just a END_TEXT marker. You can use pretty much any string: EOF (end of file) or EOD (end of data) are just common choices

            – steeldriver
            Jun 29 '15 at 17:52



















          • thanks, but anytime I execute it, I get the script on the screen. No graph :/

            – Martin Yeboah
            Jun 29 '15 at 17:04











          • Thanks soo much :) It now somehow works :D :D :D :D :D :D :D

            – Martin Yeboah
            Jun 29 '15 at 17:07











          • what is "E0F" ? and why do we need it ? also <<

            – Martin Yeboah
            Jun 29 '15 at 17:14






          • 1





            @MartinYeboah did you read the wikipedia link? EOF is just a END_TEXT marker. You can use pretty much any string: EOF (end of file) or EOD (end of data) are just common choices

            – steeldriver
            Jun 29 '15 at 17:52

















          thanks, but anytime I execute it, I get the script on the screen. No graph :/

          – Martin Yeboah
          Jun 29 '15 at 17:04





          thanks, but anytime I execute it, I get the script on the screen. No graph :/

          – Martin Yeboah
          Jun 29 '15 at 17:04













          Thanks soo much :) It now somehow works :D :D :D :D :D :D :D

          – Martin Yeboah
          Jun 29 '15 at 17:07





          Thanks soo much :) It now somehow works :D :D :D :D :D :D :D

          – Martin Yeboah
          Jun 29 '15 at 17:07













          what is "E0F" ? and why do we need it ? also <<

          – Martin Yeboah
          Jun 29 '15 at 17:14





          what is "E0F" ? and why do we need it ? also <<

          – Martin Yeboah
          Jun 29 '15 at 17:14




          1




          1





          @MartinYeboah did you read the wikipedia link? EOF is just a END_TEXT marker. You can use pretty much any string: EOF (end of file) or EOD (end of data) are just common choices

          – steeldriver
          Jun 29 '15 at 17:52





          @MartinYeboah did you read the wikipedia link? EOF is just a END_TEXT marker. You can use pretty much any string: EOF (end of file) or EOD (end of data) are just common choices

          – steeldriver
          Jun 29 '15 at 17:52













          2














          I really do not know what kind of script is that one. Where did you find it? .../bash/gnuplot seems that someone is getting really confused.



          But if you have the file with the data, call it sourcefile, with the structure 



          whatever  x-data y-data
          
whatever  x-data y-data
          
whatever  x-data y-data


          you can have a scatter plot of column 3 versus column 2 entering gnuplot, and at the prompt using: 



          plot "sourcefile" using 2:3


          (Although your script seems to be doing plot "sourcefile" using 1:3, in contrast with your description, and without quotes which is a syntax error in gnuplot unless sourcefile is a variable containing the name of the file).



          I recommend you to read http://people.duke.edu/~hpgavin/gnuplot.html






          share|improve this answer
























          • Thank you! I can create the scatterplot in gnu-plot like how you suggested. But I want to execute it inside the function too.. :(

            – Martin Yeboah
            Jun 29 '15 at 16:26
















          2














          I really do not know what kind of script is that one. Where did you find it? .../bash/gnuplot seems that someone is getting really confused.



          But if you have the file with the data, call it sourcefile, with the structure 



          whatever  x-data y-data
          
whatever  x-data y-data
          
whatever  x-data y-data


          you can have a scatter plot of column 3 versus column 2 entering gnuplot, and at the prompt using: 



          plot "sourcefile" using 2:3


          (Although your script seems to be doing plot "sourcefile" using 1:3, in contrast with your description, and without quotes which is a syntax error in gnuplot unless sourcefile is a variable containing the name of the file).



          I recommend you to read http://people.duke.edu/~hpgavin/gnuplot.html






          share|improve this answer
























          • Thank you! I can create the scatterplot in gnu-plot like how you suggested. But I want to execute it inside the function too.. :(

            – Martin Yeboah
            Jun 29 '15 at 16:26














          2












          2








          2







          I really do not know what kind of script is that one. Where did you find it? .../bash/gnuplot seems that someone is getting really confused.



          But if you have the file with the data, call it sourcefile, with the structure 



          whatever  x-data y-data
          
whatever  x-data y-data
          
whatever  x-data y-data


          you can have a scatter plot of column 3 versus column 2 entering gnuplot, and at the prompt using: 



          plot "sourcefile" using 2:3


          (Although your script seems to be doing plot "sourcefile" using 1:3, in contrast with your description, and without quotes which is a syntax error in gnuplot unless sourcefile is a variable containing the name of the file).



          I recommend you to read http://people.duke.edu/~hpgavin/gnuplot.html






          share|improve this answer













          I really do not know what kind of script is that one. Where did you find it? .../bash/gnuplot seems that someone is getting really confused.



          But if you have the file with the data, call it sourcefile, with the structure 



          whatever  x-data y-data
          
whatever  x-data y-data
          
whatever  x-data y-data


          you can have a scatter plot of column 3 versus column 2 entering gnuplot, and at the prompt using: 



          plot "sourcefile" using 2:3


          (Although your script seems to be doing plot "sourcefile" using 1:3, in contrast with your description, and without quotes which is a syntax error in gnuplot unless sourcefile is a variable containing the name of the file).



          I recommend you to read http://people.duke.edu/~hpgavin/gnuplot.html







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jun 29 '15 at 15:56









          RmanoRmano

          25.2k878145




          25.2k878145













          • Thank you! I can create the scatterplot in gnu-plot like how you suggested. But I want to execute it inside the function too.. :(

            – Martin Yeboah
            Jun 29 '15 at 16:26



















          • Thank you! I can create the scatterplot in gnu-plot like how you suggested. But I want to execute it inside the function too.. :(

            – Martin Yeboah
            Jun 29 '15 at 16:26

















          Thank you! I can create the scatterplot in gnu-plot like how you suggested. But I want to execute it inside the function too.. :(

          – Martin Yeboah
          Jun 29 '15 at 16:26





          Thank you! I can create the scatterplot in gnu-plot like how you suggested. But I want to execute it inside the function too.. :(

          – Martin Yeboah
          Jun 29 '15 at 16:26


















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