Update Issues with covaraince matrix authored by Soumen Roy's avatar Soumen Roy
...@@ -131,7 +131,10 @@ The vertical lines of GW190412 and GW190814 events are drawn at k=370 and k=330, ...@@ -131,7 +131,10 @@ The vertical lines of GW190412 and GW190814 events are drawn at k=370 and k=330,
We can see from the above plots that the difference of norms of $`\Sigma(k)\Sigma^{-1}(k)`$ and $`I(k)`$ is flaring-up after a certain rank. We can set a number for the flare-up by looking at the envelope of We can see from the above plots that the difference of norms of $`\Sigma(k)\Sigma^{-1}(k)`$ and $`I(k)`$ is flaring-up after a certain rank. We can set a number for the flare-up by looking at the envelope of
the spread of the difference of norms. The spread is basically the standard deviation of this quantity. the spread of the difference of norms. The spread is basically the standard deviation of this quantity.
<img src="uploads/caa72d6cc1dcdf4ad4b26bc6babc5bf7/envelop_gw190412.png" width="440" > <img src="uploads/e40fad036f1eb14b88dc87c04afbef4a/envelop_gw190412_1_.png" width="440" >
The quantity $`\mu(k)`$ is the mean of the difference of norms and $`\sigma(k)`$ is the standard deviation.
The 10 largest likelihood samples are chosen to compute the spread. We can find the k_max for which the distance between these two curves along the y-axis is greater than a threshold, approximately O(1e-7).
In our analysis, we set this threshold to be $`2.4 \times 10^{-7}`$.