函数R中的怪异行为未使用参数

Question

我实现了功能'identify_case'，即：

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    Document iframeContentDoc;

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    if(iframeSrc != null) {
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            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

当我使用以下代码调用该函数时：

##  Function that identify the gaps of NAs according to their length
identify_case = function(df, variable, seuil) {

df$value   = ifelse(is.na(df[,variable])==TRUE,1,0)
df$temp    = rep.int(rle(df$value)$lengths, rle(df$value)$lengths)
df$gap     = ifelse(df$value == 1, df$temp, 0)
df$temp    = NULL
df$case.nb = ifelse((df$gap > 0 & df$gap <= seuil),"cas1",ifelse((df$gap > 
seuil),"cas2","OK"))
return(df)

}

我收到错误消息：

temp.df      = identify_case(df = temporary_df,variable = "energy_NA",seuil 
= 3)

奇怪的是，我添加了行

Error in identify_case(df = temporary_df, variable = "energy_NA", seuil = 3): 
unused argument (seuil = 3)

在函数'identify_case'的开头。我没有收到任何错误，并且代码执行得很好。

即：

seuil = seuil 

有人在这里发生什么事吗？