Update VItamin and Bilby with Different Noises authored by Wei Changfeng's avatar Wei Changfeng
......@@ -54,32 +54,42 @@ Fig.14 random seed = 10000
We did PE run provided by Bilby twice to see the consistency of the results.
## (1) 4 parameters
### (i) posterior
Fig.15
![4](uploads/4149e24039801f12dfaa9d806691a5bf/4.png)
Fig.16
![4_2](uploads/b8121b185b496f72825a0db0d7af6dfe/4_2.png)
### (ii) JS divergence
#### (a) chirp mass
JSD = 0.0498
Fig.17
![chirp_mass](uploads/6eb9be9b21d2e25902a13ab54057f622/chirp_mass.png)
#### (b) mass ratio
JSD = 0.0462
Fig.18
![mass_ratio](uploads/930df1dbfaa7af97fdb8c47ec2bd2d62/mass_ratio.png)
#### (c) distance
JSD = 0.0581
Fig.19
![d](uploads/c3c3391f318b691c3214a5995f784ea8/d.png)
It can be seen that the consistency of results is good.
## (2) 15 parameters
### (i) posterior
Fig.20
![15cbc](uploads/a77d9f9030948fdd57cac91d6d52c0cf/15cbc.png)
Fig.21
![15cbc_copy](uploads/a702722d876260267e37fd2e1908b6d4/15cbc_copy.png)
### (ii) JS divergence
#### (a) chirp mass
JSD = 0.0438
Fig.22
![m2](uploads/38d078f7b3c51b860bbed8366d956595/m2.png)
#### (b) mass ratio
JSD = 0.0472
Fig.23
![q2](uploads/7bc25f77785a3baffc213ff923efe293/q2.png)
#### (c) distance
JSD = 0.0359
Fig.24
![d2](uploads/208d8cb343dbe5fd8d9a7f7630a1c3c8/d2.png)
It can be seen that the consistency of results is good.
Therefore, two tutorial scripts(4 and 15 parameters) can be accepted that they ran well on my laptop.
......@@ -152,49 +162,64 @@ result = bilby.run_sampler(
## (3) 15 parameters with (m1,m2) instead of (chirp mass, mass ratio)
We get results with good consistency in the sections above. This is to test if (m1,m2) will decrease the convergence.
### (i) posterior
Fig.25
![15cbc_n](uploads/3866e0c185dce78896dd1b18100c8a06/15cbc_n.png)
Fig.26
![15cbc_n_cp](uploads/6365ee51ec1e0ee52be4b26c5ee0b1e0/15cbc_n_cp.png)
### (ii) JS divergence
#### (a) m1
JSD = 0.0372
Fig.27
![15m1](uploads/0efc51004017f3a3784e5270c8235f9f/15m1.png)
#### (b) m2
JSD = 0.0459
Fig.28
![15m2](uploads/bc181efc370b15debf3f1f8499fd1a24/15m2.png)
#### (a) distance
JSD = 0.0336
Fig.29
![15d](uploads/0e97da3389404c5d4a673e4fb1423e26/15d.png)
It can be seen that the consistency of results is still good. Hence we decide to next test how BH encounter performs in the PE run.
# 4. BH encounter
## (1) BH enoucnter with marginalization(distance, time, phase)
### (i) posterior
Fig.30
![encounter](uploads/3681c0bbd9a90c7f5c9684e5ec5a891f/encounter.png)
Fig.31
![encounter_cp](uploads/c6fdc02274cdb24f7556690946761aea/encounter_cp.png)
### (ii) JS divergence
#### (a) m1
JSD = 0.1658
Fig.32
![encounter_margil_m1](uploads/aa2d12854aba41d5211441f58c423a02/encounter_margil_m1.png)
#### (b) m2
JSD = 0.1759
Fig.33
![encounter_margil_m2](uploads/b28dbf3f5988fa91c87298a66ae2ece2/encounter_margil_m2.png)
#### (a) distance
JSD = 0.1096
Fig.34
![encounter_margil_d](uploads/81863c4571955f98fe5aa3f7d5112dba/encounter_margil_d.png)
Wrong template (using BBH template to model BH encounter) reduces the consistency of results.
## (2) BH enoucnter without marginalization(distance, time, phase)
### (i) posterior
Fig.35
![encounter_without_margil](uploads/155ebf8256d4bdb4f3aeeab20a974c9b/encounter_without_margil.png)
Fig.36
![encounter_without_margil_cp](uploads/b5b138c6f0426eff581a95ed1201de1e/encounter_without_margil_cp.png)
### (ii) JS divergence
#### (a) m1
JSD = 0.6390
Fig.37
![encounter_m1](uploads/190a2c79fccb16ad221cf534fee6ed04/encounter_m1.png)
#### (b) m2
JSD = 0.4551
Fig.38
![encounter_m2](uploads/9d0e47b4162328215a53689855c8454a/encounter_m2.png)
#### (a) distance
JSD = 0.2937
Fig.39
![encounter_d](uploads/1fd6439364cc2a2ba9fa6a061bf778e8/encounter_d.png)
Lack of Marginalization of distance, phase and time reduces the consistency of results further.
......@@ -205,10 +230,14 @@ https://gilsay.physics.gla.ac.uk/gitlab/wei.changfeng/weichangfeng_project/tree/
https://gilsay.physics.gla.ac.uk/gitlab/wei.changfeng/weichangfeng_project/tree/master/2021_05/test_2
Though they produced the same number of samples this time, I checked the first ten lines of the sample files and they are not the same.
### (i) test 1
Fig.40
![test1](uploads/a0d28c07feda2275d7f2862d9ab32a8f/test1.png)
Fig.41
![corner1](uploads/5c4fb50dbd6d6a4ade2dfcd78f417ad9/corner1.png)
### (i) test 2
Fig.42
![test2](uploads/db55b617fe1a2b00080c0c78f1fe3d27/test2.png)
Fig.43
![corner2](uploads/72e14dc47db3e55b95182f4a99b1fc5a/corner2.png)
## (2) Fast tutorial using cpnest sampler.
The result still can't be reproduced exactly the same. All the files are uploaded here:
......@@ -216,6 +245,8 @@ https://gilsay.physics.gla.ac.uk/gitlab/wei.changfeng/weichangfeng_project/tree/
https://gilsay.physics.gla.ac.uk/gitlab/wei.changfeng/weichangfeng_project/tree/master/2021_05/test_cpnest_2
They produced the different number of samples. I checked the first ten lines of the sample files and they are not the same.
### (i) test 1
Fig.44
![corner_cpn_1](uploads/f1df89d85618e3a74432b06333aad372/corner_cpn_1.png)
### (i) test 2
Fig.45
![corner_cpn_2](uploads/81c603af077b79714bfd0dbbf8fcd384/corner_cpn_2.png)
\ No newline at end of file