logistic.json

{
  "version": "0.2.0",
  "config": {
    "base": "odin",
    "include": []
  },
  "meta": {
    "internal": "internal",
    "user": "user",
    "state": "state",
    "result": "dstatedt",
    "output": "output",
    "time": "t",
    "initial_time": "initial_t"
  },
  "features": {
    "discrete": false,
    "has_array": false,
    "has_output": false,
    "has_user": false,
    "has_delay": false,
    "has_interpolate": false,
    "has_stochastic": false,
    "has_include": false,
    "initial_time_dependent": false
  },
  "data": {
    "elements": [
      {
        "name": "K",
        "location": "internal",
        "storage_type": "double",
        "rank": 0,
        "dimnames": null
      },
      {
        "name": "N",
        "location": "variable",
        "storage_type": "double",
        "rank": 0,
        "dimnames": null
      },
      {
        "name": "N0",
        "location": "internal",
        "storage_type": "double",
        "rank": 0,
        "dimnames": null
      },
      {
        "name": "initial_N",
        "location": "internal",
        "storage_type": "double",
        "rank": 0,
        "dimnames": null
      },
      {
        "name": "r",
        "location": "internal",
        "storage_type": "double",
        "rank": 0,
        "dimnames": null
      }
    ],
    "variable": {
      "length": 1,
      "contents": [
        {
          "name": "N",
          "offset": 0,
          "initial": "initial_N"
        }
      ]
    },
    "output": {
      "length": 0,
      "contents": []
    }
  },
  "equations": [
    {
      "name": "K",
      "type": "expression_scalar",
      "source": [4],
      "depends": null,
      "lhs": "K",
      "rhs": {
        "value": 100
      }
    },
    {
      "name": "N0",
      "type": "expression_scalar",
      "source": [3],
      "depends": null,
      "lhs": "N0",
      "rhs": {
        "value": 1
      }
    },
    {
      "name": "deriv_N",
      "type": "expression_scalar",
      "source": [1],
      "depends": {
        "functions": ["*", "(", "-", "/"],
        "variables": ["r", "N", "K"]
      },
      "lhs": "N",
      "rhs": {
        "value": [
          "*",
          [
            "*",
            "r",
            "N"
          ],
          [
            "(",
            [
              "-",
              1,
              [
                "/",
                "N",
                "K"
              ]
            ]
          ]
        ]
      }
    },
    {
      "name": "initial_N",
      "type": "expression_scalar",
      "source": [2],
      "depends": {
        "functions": [],
        "variables": ["N0"]
      },
      "lhs": "initial_N",
      "rhs": {
        "value": "N0"
      }
    },
    {
      "name": "r",
      "type": "expression_scalar",
      "source": [5],
      "depends": null,
      "lhs": "r",
      "rhs": {
        "value": 0.5
      }
    }
  ],
  "components": {
    "create": {
      "variables": [],
      "equations": ["K", "N0", "r", "initial_N"]
    },
    "user": {
      "variables": [],
      "equations": []
    },
    "initial": {
      "variables": [],
      "equations": []
    },
    "rhs": {
      "variables": ["N"],
      "equations": ["deriv_N"]
    },
    "output": {
      "variables": [],
      "equations": []
    }
  },
  "user": [],
  "interpolate": {
    "min": [],
    "max": [],
    "critical": []
  },
  "source": ["deriv(N) <- r * N * (1 - N/K)", "initial(N) <- N0", "N0 <- 1", "K <- 100", "r <- 0.5"]
}