bugs - Kernel crash with RandomInteger

Bug introduced in 11.2

I am using RandomInteger to create sorted test data in the following way:

lists = Sort /@ RandomInteger[10000, {10, 200000}];

With Mathematica 11.3, the kernel crashes on me if I evaluate the line above in the front a couple of times. The crash occurs on both the Windows and OS X versions of Mathematica. I could not reproduce the bug with Mathematica 11.2.

Answer

This is a bug that can be worked around by disabling the Suggestions bar.

Given the input, it tries several operations in the background (wrapped in TimeConstrained) and one of these -- a call to Flatten -- happens to crash when interrupted.

The reason $HistoryLength = 0 or ending the input cell with ;Null; works is that it prevents the Suggestions bar from seeing the input.

This is another instance of the same bug.

Comments

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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}]

plotting - Adding a thick curve to a regionplot

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