0
$\begingroup$

May I ask how to add the gradient that I have calculated into the errorlistplot?

JoinMean = Join[{MeanC5cm, MeanC7cm, MeanC10cm, MeanC20cm, MeanC27cm, MeanC30cm}]
    {44.0215, 73.6246, 117.757, 307.112, 445.527, 352.733}

JoinStDv = Join[{Sd5, Sd7, Sd10, Sd20, Sd27, Sd30}]
{3.31495, 3.27642, 23.9473, 27.6356, 25.0707, 23.2319}

Graph1 = ErrorListPlot[{{{5, MeanC5cm}, 
    ErrorBar[Sd5]}, {{7, MeanC7cm}, ErrorBar[Sd7]}, {{10, MeanC10cm}, 
    ErrorBar[Sd10]}, {{20, MeanC20cm}, 
    ErrorBar[Sd20]}, {{27, MeanC27cm}, 
    ErrorBar[Sd27]}, {{30, MeanC30cm}, ErrorBar[Sd30]}}, 
  AxesOrigin -> {0, 0}, AxesLabel -> {"Length", "K\[CapitalOmega]"}]

MeanGradient = Fit[JoinMean, {1, x}, x]
-61.3992 + 81.389 x
$\endgroup$

1 Answer 1

1
$\begingroup$
MeanGradient =  Fit[Transpose[{{5, 7, 10, 20, 27, 30}, JoinMean}], {1, x}, x];

Show[Graph1, Plot[MeanGradient, {x, 0, 30}, PlotStyle -> Directive[Red, Thick]], 
  PlotRange -> All, PlotLabel -> MeanGradient]

enter image description here

Alternatively, you can add the option

Epilog -> Plot[MeanGradient, {x, 0, 30}, PlotStyle -> Directive[Red, Thick]][[1]]

to your ErrorListPlot that produces Graph1.

$\endgroup$
1
  • $\begingroup$ Thank you i will give it a try. $\endgroup$
    – ljsg
    Commented Jun 27, 2018 at 6:06

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.