plotting - TimelinePlot with data above and below the line

I have to do a talk about how simulation and testing are coming together. So I have been developing a historical list of events in simulation and events in testing (please add to them if you wish). The problem is I want to have the testing events above the timeline and the simulation events below the timeline. How do I do this?

Here are the two sets of data

test = {
   {{1947} -> "Flutter"},
   {{1940} -> "Tacoma Narrows"},
   {{1954} -> "Fatigue (Comet)"},
   {Interval[{{1912}, {2020}}] -> "Electronic Amplifiers"},
   {{1930} -> "Oscilloscope"},
   {Interval[{{1930}, {1985}}] -> "Analogue Testing"},

   {{1945} -> "Accelerometer"},
   {Interval[{{1985}, {2020}}] -> "Digital Testing"},
   {Interval[{{1975}, {2020}}] -> "Digital Signal Processing"},
   {{1965} -> "Fast Fourier Transform"},
   {Interval[{{1990}, {1986}}] -> "Codification of Testing"}
   }; 

simulation = {
   {Interval[{{1950}, {1990}}] -> "Main Frames"},
   {Interval[{{1900}, {1970}}] -> "Slide Rules"},

   {Interval[{{1970}, {1980}}] -> "Electronic Calculators"},
   {Interval[{{1985}, {2020}}] -> "Workstations"},
   {{1964} -> "NASTRAN"},
   {Interval[{{1983}, {2020}}] -> "NAFEMS"},
   {{1960} -> "Finite Element Analysis"},
   {{2006} -> "ASME Verification and Validation"}
   };

I can make individual plots

  TimelinePlot[test, AspectRatio -> 1/2, BaseStyle -> {FontSize -> 12}]

TimelinePlot[simulation, AspectRatio -> 1/2, 
 BaseStyle -> {FontSize -> 12}]

Mathematica graphics

What I want is a common timeline with the test items above the line and the simulation items below the line. How do I do this? Thanks

Answer

You could do something like this:

Show[
    TimelinePlot[#1,AxesOrigin->#2]&@@@{{test,Top},{simulation,Bottom}},
    AspectRatio->1/2,BaseStyle->{FontSize->12},

    PlotRange->All,Frame->False,Axes->{True,False}
    ]

Comments

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plotting - Plot 4D data with color as 4th dimension

I have a list of 4D data (x position, y position, amplitude, wavelength). I want to plot x, y, and amplitude on a 3D plot and have the color of the points correspond to the wavelength. I have seen many examples using functions to define color but my wavelength cannot be expressed by an analytic function. Is there a simple way to do this? Answer Here a another possible way to visualize 4D data: data = Flatten[Table[{x, y, x^2 + y^2, Sin[x - y]}, {x, -Pi, Pi,Pi/10}, {y,-Pi,Pi, Pi/10}], 1]; You can use the function Point along with VertexColors . Now the points are places using the first three elements and the color is determined by the fourth. In this case I used Hue, but you can use whatever you prefer. Graphics3D[ Point[data[[All, 1 ;; 3]], VertexColors -> Hue /@ data[[All, 4]]], Axes -> True, BoxRatios -> {1, 1, 1/GoldenRatio}]

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I have several sigmoidal fits to 3 different datasets, with mean fit predictions plus the 95% confidence limits (not symmetrical around the mean) and the actual data. I would now like to show these different 2D plots projected in 3D as in but then using proper perspective. In the link here they give some solutions to combine the plots using isometric perspective, but I would like to use proper 3 point perspective. Any thoughts? Also any way to show the mean points per time point for each series plus or minus the standard error on the mean would be cool too, either using points+vertical bars, or using spheres plus tubes. Below are some test data and the fit function I am using. Note that I am working on a logit(proportion) scale and that the final vertical scale is Log10(percentage). (* some test data *) data = Table[Null, {i, 4}]; data[[1]] = {{1, -5.8}, {2, -5.4}, {3, -0.8}, {4, -0.2}, {5, 4.6}, {1, -6.4}, {2, -5.6}, {3, -0.7}, {4, 0.04}, {5, 1.0}, {1, -6.8}, {2, -4.7}, {3, -1.

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