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  1. Data Management
  2. DM-18155

Make shape plots using fake sources

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    Details

    • Type: Story
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Story Points:
      4
    • Epic Link:
    • Sprint:
      DRP S19-6b, DRP F19-1, DRP F19-2
    • Team:
      Data Release Production

      Description

      Make plots comparing input and output shapes for fake sources and add them to pipe_analysis.

        Attachments

        1. plot-v1228-a_b_e1.png
          plot-v1228-a_b_e1.png
          39 kB
        2. plot-v1228-a_b_e2.png
          plot-v1228-a_b_e2.png
          39 kB
        3. plot-v1228-a_d_e1.png
          plot-v1228-a_d_e1.png
          45 kB
        4. plot-v1228-a_d_e2.png
          plot-v1228-a_d_e2.png
          45 kB
        5. plot-v1228-b_b_e1.png
          plot-v1228-b_b_e1.png
          37 kB
        6. plot-v1228-b_b_e2.png
          plot-v1228-b_b_e2.png
          38 kB
        7. plot-v1228-b_d_e1.png
          plot-v1228-b_d_e1.png
          39 kB
        8. plot-v1228-b_d_e2.png
          plot-v1228-b_d_e2.png
          38 kB

          Activity

          Hide
          sophiereed Sophie Reed added a comment -

          This turned out to be harder than expected and poorly defined. Some preliminary graphs were made but mapping correctly from the input to the expected output was non trivial and hard to evaluate. It was decided to leave this at the preliminary stages for now and if anyone wants/needs these plots and has a better defined idea of what they should look like it can be revisited. Potentially I just don't know enough about galaxy shapes to be able to decide.

          Show
          sophiereed Sophie Reed added a comment - This turned out to be harder than expected and poorly defined. Some preliminary graphs were made but mapping correctly from the input to the expected output was non trivial and hard to evaluate. It was decided to leave this at the preliminary stages for now and if anyone wants/needs these plots and has a better defined idea of what they should look like it can be revisited. Potentially I just don't know enough about galaxy shapes to be able to decide.
          Hide
          sophiereed Sophie Reed added a comment -

          Attached are the very rudimentary plots made, the name of the plot shows what is included. e1 and e2 are the eigenvalues calculated from the sdss shape matrix output by the pipeline and a/b_b/d are the a and b values of the bulge (b) and the disk (d) that were used to define the object when it was created. e1 or e2 are plotted labelled output and a/b_b/d are plotted labelled input. A vague correlation between parameters can be seen. This probably means the input objects were mostly not put in as thin lines and that a fatter galaxy is also longer.

          Show
          sophiereed Sophie Reed added a comment - Attached are the very rudimentary plots made, the name of the plot shows what is included. e1 and e2 are the eigenvalues calculated from the sdss shape matrix output by the pipeline and a/b_b/d are the a and b values of the bulge (b) and the disk (d) that were used to define the object when it was created. e1 or e2 are plotted labelled output and a/b_b/d are plotted labelled input. A vague correlation between parameters can be seen. This probably means the input objects were mostly not put in as thin lines and that a fatter galaxy is also longer.
          Hide
          yusra Yusra AlSayyad added a comment -

          Agreed to put these on the back burner for now. 

          Show
          yusra Yusra AlSayyad added a comment - Agreed to put these on the back burner for now. 

            People

            Assignee:
            sophiereed Sophie Reed
            Reporter:
            sophiereed Sophie Reed
            Reviewers:
            Yusra AlSayyad
            Watchers:
            Sophie Reed, Yusra AlSayyad
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

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