第四章 变量类型和函数讨论区【提问或回答均计分】
关于本章节内容的疑问，可以在此提出，任课老师将仔细回答比较典型的问题。
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如何用mean函数计算整个矩阵的平均值
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函数
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字符串数组或字符向量元胞数组转换为大小相同的数值数组
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提问
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求解释std不同的原因
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不同括号串联字符串的区别是什么？
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如何正确计算准确的标准差
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Structure的建立
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嵌套函数的使用限制是什么？
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第五章数据绘图
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不同括号里的字符串是怎么区别的
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~的作用是什么？
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小组信息
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作业问题
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{}[]()三种括号
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结构变量
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结构变量的升降序排列
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小组信息
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subject的子变量作为字符串时
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期中测试第七题
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sum函数的应用
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变量类型
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sort命令的运用
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平均值和标准差
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创建函数
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计算小组成员年龄平均值的时候数据无效
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结构变量索引
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{}和[]
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变量类型如何转换？
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function的运行
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单元变量
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结构变量里的自变量
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struct结构体数组
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建立function
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删除上一步
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报错
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发现function文件可以覆盖已有函数
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错误使用mean，输入参数过多
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函数命名
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函数调用
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课堂疑问1
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