fromJSON

描述

FuzzyVariable.fromJSON() 方法将从JSON格式中恢复模糊变量对象。模糊变量包含模糊集合和模糊规则。

语法

FuzzyVariable.fromJSON(jsonString)

参数

jsonString: 要恢复的模糊变量对象的JSON字符串。

返回值

FuzzyVariable对象

示例

const jsonString = '{"name":"temperature","min":0,"max":100,"sets":[{"name":"cold","type":"triangle","params":[0,0,25]},{"name":"moderate","type":"triangle","params":[0,25,50]},{"name":"hot","type":"triangle","params":[25,50,100]}],"rules":[{"antecedent":[{"set":"cold","variable":"temperature"}],"consequent":{"set":"low","variable":"fan_speed"}},{"antecedent":[{"set":"moderate","variable":"temperature"}],"consequent":{"set":"medium","variable":"fan_speed"}},{"antecedent":[{"set":"hot","variable":"temperature"}],"consequent":{"set":"high","variable":"fan_speed"}}]}';

const fuzzyVariable = FuzzyVariable.fromJSON(jsonString);
console.log(fuzzyVariable);

上述代码将输出以下内容：

{
  name: 'temperature',
  min: 0,
  max: 100,
  sets: [
    { name: 'cold', type: 'triangle', params: [ 0, 0, 25 ] },
    { name: 'moderate', type: 'triangle', params: [ 0, 25, 50 ] },
    { name: 'hot', type: 'triangle', params: [ 25, 50, 100 ] }
  ],
  rules: [
    {
      antecedent: [ { set: 'cold', variable: 'temperature' } ],
      consequent: { set: 'low', variable: 'fan_speed' }
    },
    {
      antecedent: [ { set: 'moderate', variable: 'temperature' } ],
      consequent: { set: 'medium', variable: 'fan_speed' }
    },
    {
      antecedent: [ { set: 'hot', variable: 'temperature' } ],
      consequent: { set: 'high', variable: 'fan_speed' }
    }
  ]
}

注意事项

JSON字符串应该以与FuzzyVariable.toJSON()输出的字符串相同的格式编写。否则，恢复过程可能会失败。

在开发中，我们建议使用FuzzyVariable.toJSON()方法生成JSON字符串，并使用FuzzyVariable.fromJSON()方法将其恢复为对象。