varying more parameters

Here I am showing how allowing other parameters to vary opens up the degenerate range in the $\Omega_m h^2$ - $\sigma_8$ parameter space. I am no longer plotting the reject points, because they overlap with the accepted points, due to projection. Also, I have only plotted points whose deviation is less than 1-sigma (for every k, the degenerate model is less than one sigma away from the fiducial WMAP7 model), because it's easier to see how the region grows.

Here is the plot where only two parameters are allowed to vary, the other three are fixed, as noted in the title.



Next, I show plots where a third parameter is allowed to change. What we see is that some of the parameters can compensate for changes in $\Omega_m h^2$ and $\sigma_8$, so the degenerate region opens up. More points fail, which is why the density seems to have gone down. If I were a more patient person, I'd up the density to compensate for the increase in the dimensionality of the parameter space, but these are just preliminary plots.






Finally, here are some plots where only one parameter is fixed. I ran some of these a couple of times to get a higher density of keepers...:







Don't have time right now to run the one with no parameters fixed, I'll do it tomorrow. I have a bug, I think the cosmic emulator dies sometimes, probably because the point goes out of range, which kills my code. I've written a check on the parameter values but it's not working properly. I need to track it down so the chain can run longer (like overnight).