如何使用嵌套循环填充矩阵我正在尝试从文件(包含文本和数字)中提取一组特定的数字数据并将其放入一个单独的表中,该表更易于在 JMP 中分析。我希望脚本适用于满足特定条件的数据可能存在的任意数量的列或行。我想出的如下:
Rowlist = [];
For( i = 1, i <= N Rows( Dtraw ), i++,
If( i == 1,
If( Num( Column( Dtraw, 2 )[i] ) > 0 & Num( Column( Dtraw, 2 )[i] ) < 1000,
Rowlist = Matrix( i )
),
If( Num( Column( Dtraw, 2 )[i] ) > 0 & Num( Column( Dtraw, 2 )[i] ) < 1000,
Rowlist = V Concat( Rowlist, Matrix( i ) )
)
)
);
show(Rowlist);
cols= dtraw<<GET column="" names=""></GET>
Rowlist 是符合我需要的标准的行矩阵(即它们是数字而不是文本)。我想使用这个列表和“<
-谢谢
回复:如何使用嵌套循环填充矩阵谢谢你,这很好用!
回复:如何使用嵌套循环填充矩阵你有几个打字错误。
1. 你的第二个 For 循环
For( k = 2, k <= N Items( cols ), i++,
</CODE></PRE>
<P>您正在增加“i”,而不是“k”。它应该是</P>
<PRE><CODE class=" language-jsl">For( k = 2, k <= N Items( cols ), k++,
其次,在引用 MainData 矩阵时需要从 k 中减去 1,否则会超出范围,因为它比列数少 1。
MainData[i, k - 1] = Num( Column( dtraw, k - 1 )[rowlist[i]] )
整个部分应该是:
For( i = 1, i <= N Rows( rowlist ), i++,
For( k = 2, k <= N Items( cols ), k++,
MainData[i, k - 1] = Num( Column( dtraw, k - 1 )[rowlist[i]] )
)
);
回复:如何使用嵌套循环填充矩阵以下是数据的通用示例(显示格式):
| 约会时间: | 2017 年 11 月 29 日 20:11 | | | | | | | | | | |
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| 约会时间: | 2017 年 11 月 29 日 20:11 | | | | | | | | | | |
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回复:如何使用嵌套循环填充矩阵我收到以下错误消息:
无效下标(必须是数字或数字列表){1271} 访问或评估 'Subscript' , rowlist[/*###*/i]
在以下脚本中,错误标记为 /*###*/
显示(行列表);
cols = dtraw << 获取列名();
MainData = J( N 项( rowlist ), N 项( cols ) - 1 );
对于(i = 1,i <= N 项(rowlist),i++,
对于(k = 2,k <= N 项(cols),i++,
MainData[i, k] = Num( Column( dtraw, k )[rowlist[/*###*/i]] )
)
);
回复:如何使用嵌套循环填充矩阵当然,代码看起来“大致正确”。
请问您实际看到了什么错误? 你可以上传'dtraw'的一部分吗?