Language

Package: alfa @ 2.2

Synopsis

Automated line fitting algorithm

Description

This package provides ALFA, which can identify and fit hundreds of lines in emission line spectra in just a few seconds with following features:

  • A population of synthetic spectra is generated using a reference line catalogue.

  • The goodness of fit for each synthetic spectrum is calculated. The best sets of parameters are retained and the rest discarded.

  • A new population of synthetic spectra is obtained by averaging pairs of the best performers.

  • A small fraction of the parameters of the lines in the new generation are randomly altered.

  • The process repeats until a good fit is obtained.

Home page
https://nebulousresearch.org/codes/alfa/
Location
gnu/packages/astronomy.scm (line: 95, column: 2)
License

Derivations

SystemTargetDerivationBuild status
x86_64-linux/gnu/store/6ch16nycbnpxhy35lh8zccxg6cfzr5ji-alfa-2.2.drv
x86_64-linuxx86_64-w64-mingw32/gnu/store/jicq2ls453p7b73f6c94bbbpiq5zh9fz-alfa-2.2.drv
x86_64-linuxriscv64-linux-gnu/gnu/store/m5lwq0mii8k8ld5gil7n6i0p1gvjy3ki-alfa-2.2.drv
x86_64-linuxpowerpc-linux-gnu/gnu/store/ickha5rq0z9fayys1r1wnfnlwag1a670-alfa-2.2.drv
x86_64-linuxpowerpc64le-linux-gnu/gnu/store/xak779y6dpq873ppidmbm001wdgj8s6a-alfa-2.2.drv
x86_64-linuxmips64el-linux-gnu/gnu/store/253yzs0aycg46fn51xja9751290s6pw1-alfa-2.2.drv
x86_64-linuxi686-w64-mingw32/gnu/store/lsq8xn8674h5bmp62bi923ivx2y3mbpn-alfa-2.2.drv
x86_64-linuxi586-pc-gnu/gnu/store/pjvicyann5aiw3f6bgm3730ll9nmbix5-alfa-2.2.drv
x86_64-linuxarm-linux-gnueabihf/gnu/store/hmlysxhmnda7jzjjadb03fa12ml2yknh-alfa-2.2.drv
x86_64-linuxaarch64-linux-gnu/gnu/store/w6gibwma00ds0wxdx0l6qhrpb0jz4wq6-alfa-2.2.drv
riscv64-linux/gnu/store/yi9a6587lsxfsc95gsxs8k2gq3zsxiiq-alfa-2.2.drv
    powerpc-linux/gnu/store/fw4yracydqxnhw3g2ignhq8mgzfgip00-alfa-2.2.drv
      powerpc64le-linux/gnu/store/avf74562wcc22s84j5bh2gj9fmj8vmxm-alfa-2.2.drv
      mips64el-linux/gnu/store/bvmhzq7mq9pll4vsxdh41l816y5iclh6-alfa-2.2.drv
        i686-linux/gnu/store/6vjkkxqnhbnzzrg9pnz4i1jp8wm4jzgm-alfa-2.2.drv
        i586-gnu/gnu/store/4vrphxmyxc73lh7qm6mm1b9d90m4qkw5-alfa-2.2.drv
        armhf-linux/gnu/store/vg754rziqj4g9ljs5zwrbqfxfm18qkyy-alfa-2.2.drv
        aarch64-linux/gnu/store/1y6cfzyzgdvzn80d2a183hg0a8zvinba-alfa-2.2.drv

        Lint warnings

        LinterMessageLocation
        No lint warnings