ripser(1)

💖 RIPser 💖

okay bestie, come closer. you're about to meet ripser, a General Commands Manual icon, and she does exactly one thing but she does it flawlessly: fast computation of persistent homology of flag complexes. that's it. that's the whole vibe. no cap. 🔥

like, it's giving "I read your distance matrix and I understood it on a spiritual level." ✨

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🌸 SYNOPSIS 🌸

ripser [options...] [filename]

that's it!! you hand her options, maybe a file, and she goes. 💅

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🎀 OPTIONS 🎀

• --help — shows you the help message and then dips. bye!! 👋
• --format <format> — tells her what shape your input file is in. the options are, and I cannot stress this enough, exactly these:
  • lower-distance — lower triangular distance matrix. this is the default, so if you say nothing she assumes this one. she's not judging you. 🫶
  • upper-distance — upper triangular distance matrix
  • distance — full distance matrix
  • point-cloud — point cloud in Euclidean space
  • dipha — distance matrix in DIPHA file format
  • sparse — sparse distance matrix in sparse triplet format
  • binary — lower triangular distance matrix in binary format
• --dim <k> — compute persistent homology up to dimension k. how deep do you wanna go? she'll go there. 👑
• --threshold <t> — compute Rips complexes up to diameter t. everything past t? not invited to the party. 🙈
• --ratio <r> — only show persistence pairs with death/birth ratio > r. lowkey a filter, highkey a glow-up for your output. ✨

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🦋 SEE ALSO 🦋

• ripser-coeff(1) — her sister. go say hi. 💜

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that's the whole page, bestie, you ate it up. 🍓

cute little sign-off: this page is from the General Commands Manual, dated 2022-09-19, and it's for ripser(1) — go compute something gorgeous. 🌈⭐🧚