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| I want to generate a list that represents a multinormal population, with 20 samples of size 10. With the means:{7,4,5,6} and covariances {{1,0.5,0.5,0.5}, {0.5,1,0.5,0.5}, {0.5,0.5,1,0.5}, {0.5,0.5,0.5,1}}. I expect to get a 10 x 20 array. The... |
| &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/0c4bd03c-b0ce-4fb9-ba31-c3bcef8d8b48 |
| I want to use Mathematica 13.2 with the latest R-Version 4.2.2. Unfortunately, the following code creates an error. Needs["RLink`"]; InstallR["RHomeLocation" -> "C:\\Program Files\\R\\R-4.2.2\\"] ![enter image description... |
| The functions "**Classify**" and "**Predict**" are working with an 'embedded' preprocessing pipeline for data preparation. The following image from Etienne Barnard's book "Introduction to Machine Learning" shows what is meant. ![Screenshot][1] ... |
| I want to solve a system of three equations to get the values of three variables. It doesn't matter whether I use Mathematica 13.1 or the Wolfram Engine 13.1, the results are the same. Here is the code: Solve[{(a + 1)*(b + 1)*(c + 1) == 3 && ... |
| I have a number of DICOM files (series) from the last CT Scan of my brain. The import is running well: im = Import["…\IM000001.dic", {"DICOM", "Image"}]; I have chosen this command line because it keeps the **MetaInformation** in the... |
| This is to let you know: I just recognized that the Mathematica Upgrade 13.1 on Windows does not uninstall the 13.0.1 Documentation. The old documentation can be easily uninstalled via the Windows System. Otherwise, 7.72 GB will remain unused on... |
| There is a nice example of how to use GPT or BERT for sentiment analysis: [Use of transformer neural networks ][1] How and in which format do I have to save / export a modified transformer model for reuse or sharing? [1]:... |
| I just played with two examples from the Function Repository: ResourceFunction[ "CurveFitOverview"][{{1, 2}, {3, 6}, {5, 9}, {7, 11}}, x, "Exponential"] ResourceFunction[ "CurveFitReport"][{{1, 2}, {3, 6}, {5, 9}, {7, 11}},... |
| &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/31c684b0-3b7e-4a4e-975e-32c40583953d |