首页 \ 问答 \ 获取所选ColdFusion单选按钮的ID（非值）(Get ID (not value) of selected ColdFusion radio button)

获取所选ColdFusion单选按钮的ID（非值）(Get ID (not value) of selected ColdFusion radio button)

 我在ColdFusion中创建了一个测验，一个表中有问题，另一个表中有答案; 它是多种选择，每个答案都是作为一个广播组的成员呈现的。 我正在遍历我的记录集rsAnswers，以输出无线电组。 我需要为Insert操作获取所选单选按钮的数据库ID，但无法弄明白。  
 这是我输出问题和答案的方式：  
<h3>Question #<cfoutput>#Session.theQuestion#</cfoutput></h3>
<h3><cfoutput>#rsQuestion.rrqQuestion#</cfoutput></h3>
<ol type="A" id="answerList">
  <cfoutput query="rsAnswers">
    <li>
      <label>
        <input type="radio" name="theAnswers" id=#rsAnswers.ID#" value="#rsAnswers.rraValue#" />
        #rsAnswers.rraAnswer#</label>
    </li>
  </cfoutput>
</ol>
 
 如果我可以检索所选单选按钮的ID属性，我会没事的，但我没有看到在CF中这样做的方法。 我错过了什么？  
 TIA - 乔 

I've created a quiz in ColdFusion with questions in one table and answers in another; it's multiple choice and each answer is presented as a member of a radio group. I'm looping through my recordset, rsAnswers, to output the radio group. I need to get the database ID of the selected radio button for an Insert operation and can't figure it out.  
Here's how I'm outputting the question and answers: 
<h3>Question #<cfoutput>#Session.theQuestion#</cfoutput></h3>
<h3><cfoutput>#rsQuestion.rrqQuestion#</cfoutput></h3>
<ol type="A" id="answerList">
  <cfoutput query="rsAnswers">
    <li>
      <label>
        <input type="radio" name="theAnswers" id=#rsAnswers.ID#" value="#rsAnswers.rraValue#" />
        #rsAnswers.rraAnswer#</label>
    </li>
  </cfoutput>
</ol>
 
If I could retrieve the ID attribute of the selected radio button, I'd be fine, but I don't see a way to do that in CF. What am I missing? 
TIA - Joe

原文：https://stackoverflow.com/questions/32280897

更新时间：2022-04-01 13:04

最满意答案

 对于nls您必须更仔细地指定参数。 此外，您可能不想使用log(y) ，因为这将绘制对数而不是y 。 我的猜测是你想使用y ~ exp(a + b * x) 。 请参阅下面的示例。  
ggplot(df, aes(x = t, y = m))+
  geom_point()+
  geom_smooth(method = "nls", formula = y  ~ exp(a + b * x), start=list(a=0, b=1), se=FALSE)
 
 你也可以使用glm而不是nls 。 例如，以下内容为您提供相同的解决方案。  
ggplot(df, aes(x = t, y = m))+
  geom_point()+
  geom_smooth(method = "glm", formula = y  ~ x, family=gaussian(link = "log"), se=FALSE)

For nls you have to specify the parameters more carefully. Also, you probably don't want to use log(y), because that will plot the logarithm instead of y. My guess is that you want to use something like y ~ exp(a + b * x). See below for an example.  
ggplot(df, aes(x = t, y = m))+
  geom_point()+
  geom_smooth(method = "nls", formula = y  ~ exp(a + b * x), start=list(a=0, b=1), se=FALSE)
 
You could also use glm instead of nls. For instance the following gives you the same solution.  
ggplot(df, aes(x = t, y = m))+
  geom_point()+
  geom_smooth(method = "glm", formula = y  ~ x, family=gaussian(link = "log"), se=FALSE)

获取所选ColdFusion单选按钮的ID（非值）(Get ID (not value) of selected ColdFusion radio button)

最满意答案

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