tractor

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Changes to _get_iv to compute covariant errors

5

Added changes to the function _get_iv in optimize.py - placed each unit flux model in a corresponding image - calculated Fisher information matrix F - found the covariance matrix C...

gemmahuai

Issue installing in conda environment - astrometry.utils not found

3

I am trying to install Tractor and astrometry.net in a conda environment using pip (from yaml file): - pip: - git+https://github.com/dstndstn/astrometry.net.git@main - git+https://github.com/dstndstn/tractor.git@main This worked before, and seems to complete...

dmasters

Non-compliant version "git" results in build error

2

Version “git” set in [setup.py](https://github.com/dstndstn/tractor/blob/main/setup.py#L118) is not a valid version string according to [PEP 440](https://peps.python.org/pep-0440/), the Python versioning standard. Starting with setuptools v67.0.0, noncompliant version results in build error, see...

tgoldina

Cannot open tractor-sdss-synth.py

9

I just installed tractor and tried to open the example (tractor-sdss-synth.py ), but I get this error: ``` Traceback (most recent call last): File "test_tractor.py", line 8, in from tractor...

dampach

Cannot install tractor

15

I could not install the latest master branch (5908427875c9f954935667b49500f247adb33a18). When I rolled it back to 3b4cc61163e56a9f67e4c03ce415e47eb6aff3cd, I was able to install. I attached the error message below. ``` (base) [miyatake@galaxy-gw...

HironaoMiyatake

Expose data numbers and electron counts in info dict when loading SDSS images

1

[Low priority feature contribution] Since we're incorporating sky noise in the model for the Inference project, it's useful to expose in `tractor.Image` instances the calculations described in http://data.sdss3.org/datamodel/files/BOSS_PHOTOOBJ/frames/RERUN/RUN/CAMCOL/frame.html : ```...

bpartridge

some non-catastrophic RuntimeWarning(s) to consider capturing

1

For your consideration to capture: ``` /usr/local/lib/python/tractor/galaxy.py:778: RuntimeWarning: invalid value encountered in double_scalars return 4. * ef / ((ef + 1)**2) ``` and ``` /usr/local/lib/python/tractor/lsqr_optimizer.py:435: RuntimeWarning: invalid value encountered in...

moustakas

@dstndstn, possibly related to #79 -- are you aware of this paper? https://arxiv.org/abs/1401.2636

moustakas

Running the 'splinesky.py' test script currently generates an error in the priors due to some inconsistent use of lists vs numpy arrays for the various components, AND mub does not...

dstndstn

Maybe since *The Tractor* is now integrated into a pipeline or two, we should write a paper about it??

davidwhogg