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@joellembatchou
I noticed this error when using SBAT
```
-computing joint association tests...
ERROR: computing NNLS weight(i =2) & component(j = 4 out of 10) failed; pnorm(V11inv)*pnorm(V220…
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After #481 , `ishermitian` is now broken (maybe other methods too?) when working with `ForwardDiff.Dual`.
```julia
julia> Pkg.status()
Status `/tmp/jl_gs3tnK/Project.toml`
[f6369f11] ForwardDi…
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This might be more representative:
```Fortran
a = 0._rk
do nl = 1,bench%nloops
a = a + dot_product(u,v)
end do
call bench%stop_benchmark(cmp_gflops)
print *, a
```
The cum…
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In an ideal world, a user would test an `rrule` by writing something like the following, and have it work all of the time:
```julia
test_rrule(foo, args...)
```
By work all of the time, I mean tha…
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Not shure if this belongs here or to ChainRules, but taking the gradient of functions that use `isposdef` fails with `ERROR: MethodError: no method matching iterate(::Nothing)`. See this MWE:
```ju…
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I recognize that Vandenberghe suggests a similar (1+alpha) shift in the initialization when alpha > 0, but the '1' is a magic number that, it seems to me, should scale with an appropriate norm of the …
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multiplying data matrix by constants makes the scale matrix for inverse-Wishart not symmetric positive definite
```r
data(optimism)
spec = specify_bsvarSIGN$new(optimism*10, p = 4)
post = estima…
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Hi,
This is related to another issue so it might make more sense to join it with the other thread.
I'm trying to make this linear kernel: x1^T (Sigma) x2 where Sigma is a d x d matrix some of …
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See https://andrescaicedo.wordpress.com/2008/11/11/275-positive-polynomials/ for mathematical details, and http://www.mathcs.emory.edu/~vicki/pub/sos.pdf for the algorithm. Also https://en.wikipedia.o…
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There are two almost equal arrays generated by the same pipeline in different systems. (All differences between respective items are about 1e-16 and apparently caused by differences in hardware.)
…