JuliaAstro/SpectralFitting.jl

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✨🛰 Fast and flexible spectral fitting in Julia.

Stars: 22
Forks: 11
Open beginner issues: 0
Indexed issues: 36
Avg merge: 1d 10h
Merged PRs (30d): 2

Dominant language: Julia
License: GPL-3.0
Last GitHub push: Sep 3, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

Open All

36 open issues indexed

Plotting as package extension Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaAstro/SpectralFitting.jl#238 · Opened Jan 15, 2026
Check for, but do not require an RMF Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

JuliaAstro/SpectralFitting.jl#237 · Opened Jan 13, 2026
An evaluator function / multiple data, single model Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaAstro/SpectralFitting.jl#196 · 2 comments · 1 reaction · Opened Oct 27, 2025
Add ATOMDB Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaAstro/SpectralFitting.jl#192 · 2 comments · Opened Oct 15, 2025
Fitting in log space and weighted least squares Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#191 · 5 comments · Opened Oct 14, 2025
Setup Tutorial Open

documentation enhancement good first issue

Difficulty 2/5 Half a day Newbie friendliness 55/100

JuliaAstro/SpectralFitting.jl#189 · Opened Oct 8, 2025
Better plotting Open

enhancement good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#188 · Opened Oct 8, 2025
XSPEC model strings Open

enhancement good first issue

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaAstro/SpectralFitting.jl#187 · Opened Oct 8, 2025
Issue with reading response file Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaAstro/SpectralFitting.jl#185 · 4 comments · Opened Aug 18, 2025
Derivatives w.r.t. a particular parameter Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

JuliaAstro/SpectralFitting.jl#175 · Opened Jun 17, 2025
Named model components. Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#164 · Opened May 5, 2025
max_iter not being obeyed? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaAstro/SpectralFitting.jl#163 · 3 comments · Opened Apr 24, 2025
Compound models to simplify complex connections between parameters Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaAstro/SpectralFitting.jl#154 · 1 comment · Opened Apr 7, 2025
Data checksums Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaAstro/SpectralFitting.jl#152 · Opened Mar 11, 2025
Evaluate model components Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#143 · 1 reaction · Opened Dec 2, 2024
regroup: inexact errors when rebinning Chandra background Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#142 · 1 comment · Opened Nov 21, 2024
Chandra grating data not read? Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

JuliaAstro/SpectralFitting.jl#141 · 1 comment · Opened Nov 9, 2024
Add support for XANES data Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaAstro/SpectralFitting.jl#140 · Opened Nov 8, 2024
Data binning Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaAstro/SpectralFitting.jl#139 · Opened Nov 6, 2024
autodiff: permit AutoFiniteDiff backend Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 43/100

JuliaAstro/SpectralFitting.jl#137 · Opened Oct 25, 2024
Single model, multiple data Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#132 · Opened Oct 3, 2024
Model conversions Open

enhancement good first issue help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaAstro/SpectralFitting.jl#126 · 7 comments · 1 reaction · Opened Jul 24, 2024
Nesting wrapped models Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaAstro/SpectralFitting.jl#125 · Opened Jul 1, 2024
`plotresult` colours are inconsistent Open

good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaAstro/SpectralFitting.jl#115 · Opened Jun 23, 2024
invokemodel API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#113 · Opened Jun 17, 2024
Better units Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#112 · Opened Jun 17, 2024
Optimization: cache resource files Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaAstro/SpectralFitting.jl#102 · Opened May 18, 2024
Plots: stepmid steps slightly differently than the bin widths Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#92 · Opened May 7, 2024
Allow masked data to be removed Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaAstro/SpectralFitting.jl#76 · Opened Feb 14, 2024
Dataset handling is slow when the response matrix is big Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#75 · Opened Feb 14, 2024
Covariance matrix: also include the domain variance Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaAstro/SpectralFitting.jl#72 · Opened Nov 23, 2023
Fitting non X-ray data Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaAstro/SpectralFitting.jl#70 · 5 comments · Opened Nov 12, 2023
Model evaluated outside of allowed range Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

JuliaAstro/SpectralFitting.jl#68 · 1 comment · Opened Nov 6, 2023
Convert missing to nothing Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

JuliaAstro/SpectralFitting.jl#67 · Opened Oct 9, 2023
XSPEC commands that it would be cool to also be able to do Open

good first issue help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaAstro/SpectralFitting.jl#50 · 2 comments · Opened Apr 11, 2023
XS_PowerLaw fits differently from PowerLaw Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

JuliaAstro/SpectralFitting.jl#41 · 1 comment · Opened Jan 12, 2023

JuliaAstro/SpectralFitting.jl

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