taskGNU Astronomy Utilities - Tasks: task #15971, Arithmetic operators that take RNG...


You are not allowed to post comments on this tracker with your current authentication level.

task #15971: Arithmetic operators that take RNG seed as argument

Submitter:  Mohammad Akhlaghi <makhlaghi>
Submitted:  Sun 23 May 2021 11:14:44 PM UTC
Should Start On:  Sun 23 May 2021 11:00:00 PM UTC Should be Finished on:  Sun 23 May 2021 11:00:00 PM UTC
Category:  Table Priority:  5 - Normal
Item Group:  Enhancement Status:  Postponed
Privacy:  Public Assigned to:  None
Percent Complete:  0% Open/Closed:  Open
Effort:  0.00

Sun 23 May 2021 11:14:44 PM UTC, original submission:  

Currently when the user gives '--envseed' with multiple of the 'mknoise-*' operators of column arithmetic in Table, they will receive an increment in the given seed for every call of an 'mknoise-*' operator.

This will ensure that the command produces a reproducible sampling of the random distribution at a later time.

However, this has the limitation that if the order of the calls to the 'mknoise-*' change (for example the output columns are switched), different seeds will be used. This has no effect on the core concept of reproduciblity because the input command has changed. But is inconvenient when it happens to be necessary.

To fix this, each 'mknoise-*' operator should have a mirror 'mknoise-seed-*' operator which takes one extra argument (the random number generator seed). In this way, changing the order of the output columns won't affect the result (and it won't be necessary to call '--envseed').

Mohammad Akhlaghi <makhlaghi>
Group administrator


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

No files currently attached


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -email is unavailable- added by makhlaghi (Submitted the item)

    There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.


    No changes have been made to this item

    Back to the top

    Powered by Savane 3.13-7b9d.
    Corresponding source code