ufkc7e3d/mathnet-numerics - mathnet-numerics - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Christoph Ruegg	e37498618b	Distributions: move files (ns sync), clean up	13 years ago
Christoph Ruegg	8bfcab62ed	LA: Move all from .Generic namespace to parent namespace	13 years ago
Christoph Ruegg	f304fac8e2	Distributions: formatting cleanup (no code changes)	13 years ago
Christoph Ruegg	fc1d4a4715	Distributions: ctor overloads that accept Random argument	13 years ago
Christoph Ruegg	0219fb75c2	LA: Vector construction consistent with matrix	14 years ago
Christoph Ruegg	6c32ba172b	Distributions: consistent sample methods for continuous distributions #32	14 years ago
Christoph Ruegg	6f122ed0b6	LA: avoid some redundant range checks (perf)	14 years ago
seahearman	01a26e9cb2	I want to sample a vector from a multivariate normal distribution. According to the Help file, I should use the method Sample(), but I found out that I can only sample a square matrix from this method, that is when I use the following code: var NRow = 3; var NCol = 3; var m = new DenseMatrix(NRow, NCol); var v = new DenseMatrix(NRow); for (var i = 0; i < NRow; i++) { v[i, i] = 1; } var k = new DenseMatrix(NCol); for (var i = 0; i < NCol; i++) { k[i, i] = 1; } var NewMatrix = new MatrixNormal(m, v, k); var Sampleone = NewMatrix.Sample(); It is fine, but when I change NRow=4, (but keep NCol=3) it does not work. I checked the code, I think the problem is in MatrixNormal.cs Line 286: var vector = SampleVectorNormal(rnd, new DenseVector(n * n, 0.0), vki); but I think it should be: var vector = SampleVectorNormal(rnd, new DenseVector(n * p, 0.0), vki);	15 years ago
Andrew Kazyrevich	622e5277f3	Minor improvement. Exception messages for matrix dimensions now tell you the values (in addition to a mere 'dimensions must match' we had before).	15 years ago
Marcus Cuda	4fe613c977	distributions: Vladmir's first take at the distributions	16 years ago