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2

I am trying to add the line going through the points (1000,-8.5) and (10000,-27.79). This is the latex I have so far.

begin{figure}[h!]

begin{center}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };



% add plot of equation going through points (1000,-8.5) and (10000,-27.79) here



end{axis}

end{tikzpicture}

end{center}

end{figure}

All the equations passing through those two points don't show up correctly on the plot, I'm guessing because the logarithmic scale. I have tried 49.37-19.29*x but that doesn't work. That equation is reached by applying log(x) before calculating the line connecting the two points. How do I get a line passing through those points?

tikz-pgf pgfplots

share|improve this question

asked yesterday

Tom FinetTom Finet

232

New contributor

Tom Finet is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Welcome to TeX.SE! addplot[no marks] coordinates {(1000,-8.5) (10000,-27.79)}; ?
  
  – marmot
  23 hours ago
  

  
  
  
  

add a comment | 

2

I am trying to add the line going through the points (1000,-8.5) and (10000,-27.79). This is the latex I have so far.

begin{figure}[h!]

begin{center}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };



% add plot of equation going through points (1000,-8.5) and (10000,-27.79) here



end{axis}

end{tikzpicture}

end{center}

end{figure}

All the equations passing through those two points don't show up correctly on the plot, I'm guessing because the logarithmic scale. I have tried 49.37-19.29*x but that doesn't work. That equation is reached by applying log(x) before calculating the line connecting the two points. How do I get a line passing through those points?

tikz-pgf pgfplots

share|improve this question

asked yesterday

Tom FinetTom Finet

232

New contributor

Tom Finet is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Welcome to TeX.SE! addplot[no marks] coordinates {(1000,-8.5) (10000,-27.79)}; ?
  
  – marmot
  23 hours ago
  

  
  
  
  

add a comment | 

I am trying to add the line going through the points (1000,-8.5) and (10000,-27.79). This is the latex I have so far.

begin{figure}[h!]

begin{center}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };



% add plot of equation going through points (1000,-8.5) and (10000,-27.79) here



end{axis}

end{tikzpicture}

end{center}

end{figure}

All the equations passing through those two points don't show up correctly on the plot, I'm guessing because the logarithmic scale. I have tried 49.37-19.29*x but that doesn't work. That equation is reached by applying log(x) before calculating the line connecting the two points. How do I get a line passing through those points?

tikz-pgf pgfplots

share|improve this question

asked yesterday

Tom FinetTom Finet

232

New contributor

Tom Finet is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

begin{figure}[h!]

begin{center}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };



% add plot of equation going through points (1000,-8.5) and (10000,-27.79) here



end{axis}

end{tikzpicture}

end{center}

end{figure}

share|improve this question

asked yesterday

Tom FinetTom Finet

232

New contributor

Tom Finet is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked yesterday

Tom FinetTom Finet

232

New contributor

Tom Finet is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked yesterday

Tom FinetTom Finet

232

New contributor

Tom Finet is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked yesterday

Tom FinetTom Finet

232

1 Answer
1

active

oldest

votes

3

How about

documentclass[tikz,border=3.14mm]{standalone}



usepackage{pgfplots}

pgfplotsset{compat=1.16}

begin{document}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

    legend pos=north east

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };

addlegendentry{data}



addplot[color=orange,no marks] coordinates {(1000,-8.5) (10000,-27.79)};

addlegendentry{fit}

end{axis}

end{tikzpicture}

end{document}

share|improve this answer

answered 23 hours ago

marmotmarmot

106k4127241

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I think (s)he wants the equation in the legend. (Already provided in his question I think -but didn't solved- See his comment on my deleted answer)
  
  – koleygr
  23 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @koleygr Thanks! One can replace addlegendentry{fit} by addlegendentry{$E=mc^2$}, say, to get an equation. Please consider changing your answer tex.stackexchange.com/a/477600/121799. You need only something like node [whtblock, right=3cm of PHY,font=fontsize{12}{0}selectfont]. In your answer, all the node distance keys have no effect because they are to be placed earlier. That is, remove all node distance statements and put the distance in the below of and so on keys.
  
  – marmot
  23 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Ok fixed... Didn't realized what you said at first time and thought that I have to study things to make the requested edit and know what I am doing. But what you said was simple and thus, edited the question. thanks
  
  – koleygr
  22 hours ago
  

  
  
  
  

add a comment | 

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3

How about

documentclass[tikz,border=3.14mm]{standalone}



usepackage{pgfplots}

pgfplotsset{compat=1.16}

begin{document}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

    legend pos=north east

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };

addlegendentry{data}



addplot[color=orange,no marks] coordinates {(1000,-8.5) (10000,-27.79)};

addlegendentry{fit}

end{axis}

end{tikzpicture}

end{document}

share|improve this answer

answered 23 hours ago

marmotmarmot

106k4127241

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I think (s)he wants the equation in the legend. (Already provided in his question I think -but didn't solved- See his comment on my deleted answer)
  
  – koleygr
  23 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @koleygr Thanks! One can replace addlegendentry{fit} by addlegendentry{$E=mc^2$}, say, to get an equation. Please consider changing your answer tex.stackexchange.com/a/477600/121799. You need only something like node [whtblock, right=3cm of PHY,font=fontsize{12}{0}selectfont]. In your answer, all the node distance keys have no effect because they are to be placed earlier. That is, remove all node distance statements and put the distance in the below of and so on keys.
  
  – marmot
  23 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Ok fixed... Didn't realized what you said at first time and thought that I have to study things to make the requested edit and know what I am doing. But what you said was simple and thus, edited the question. thanks
  
  – koleygr
  22 hours ago
  

  
  
  
  

add a comment | 

3

How about

documentclass[tikz,border=3.14mm]{standalone}



usepackage{pgfplots}

pgfplotsset{compat=1.16}

begin{document}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

    legend pos=north east

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };

addlegendentry{data}



addplot[color=orange,no marks] coordinates {(1000,-8.5) (10000,-27.79)};

addlegendentry{fit}

end{axis}

end{tikzpicture}

end{document}

share|improve this answer

answered 23 hours ago

marmotmarmot

106k4127241

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I think (s)he wants the equation in the legend. (Already provided in his question I think -but didn't solved- See his comment on my deleted answer)
  
  – koleygr
  23 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @koleygr Thanks! One can replace addlegendentry{fit} by addlegendentry{$E=mc^2$}, say, to get an equation. Please consider changing your answer tex.stackexchange.com/a/477600/121799. You need only something like node [whtblock, right=3cm of PHY,font=fontsize{12}{0}selectfont]. In your answer, all the node distance keys have no effect because they are to be placed earlier. That is, remove all node distance statements and put the distance in the below of and so on keys.
  
  – marmot
  23 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Ok fixed... Didn't realized what you said at first time and thought that I have to study things to make the requested edit and know what I am doing. But what you said was simple and thus, edited the question. thanks
  
  – koleygr
  22 hours ago
  

  
  
  
  

add a comment | 

How about

documentclass[tikz,border=3.14mm]{standalone}



usepackage{pgfplots}

pgfplotsset{compat=1.16}

begin{document}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

    legend pos=north east

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };

addlegendentry{data}



addplot[color=orange,no marks] coordinates {(1000,-8.5) (10000,-27.79)};

addlegendentry{fit}

end{axis}

end{tikzpicture}

end{document}

share|improve this answer

answered 23 hours ago

marmotmarmot

106k4127241

documentclass[tikz,border=3.14mm]{standalone}



usepackage{pgfplots}

pgfplotsset{compat=1.16}

begin{document}

begin{tikzpicture}

begin{axis}[

    xmode=log,

    xlabel={Frequency (Hz)},

    ylabel={Gain (db)},

    xmin=0, xmax=20000,

    ymin=-30, ymax=10,

    xtick={0,100,1000,10000},

    ytick={10,0,-10,-20,-30},

    legend pos=north west,

    ymajorgrids=true,

    grid style=dashed,

    legend pos=north east

]



addplot[

    color=blue,

    mark=square,

    only marks,

    ]

    coordinates {

    (100,-0.18)(1000,-8.5)(2000,-14.15)(4000,-19.83)(10000,-27.79)

    };

addlegendentry{data}



addplot[color=orange,no marks] coordinates {(1000,-8.5) (10000,-27.79)};

addlegendentry{fit}

end{axis}

end{tikzpicture}

end{document}

share|improve this answer

answered 23 hours ago

marmotmarmot

106k4127241

answered 23 hours ago

marmotmarmot

106k4127241

answered 23 hours ago

marmotmarmot

106k4127241