{
  "aliases": [
    "chapman-richards-curve",
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    "generalized-logistic",
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    "generalized-logistic-curve",
    "richards-curve",
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    "richardss-curve",
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  "body": "\n## Summary\n\nThe **generalized logistic function** or **curve** is an extension of the logistic or sigmoid functions. Originally developed for growth modelling, it allows for more flexible S-shaped curves. The function is sometimes named **Richards's curve** after F. J. Richards, who proposed the general form for the family of models in 1959.\n",
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  "name": "Generalised logistic function",
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