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dolphindb中有没有类似python中的shift函数 可以将矩阵整体往下移一行,第一行变成NAN?

dolphindb中有没有类似python中的shift函数 可以将矩阵整体往下移一行,第一行变成NAN?

matrix(1 2 3,  4 5 6 , 7 8 9 , 5 6 7)

我想把:
image
快速变成:
image


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by (71.8m points)

可以使用 each(move{,1}, matrix)完成上述转换,示例代码:

m=matrix(1 2 3,  4 5 6 , 7 8 9 , 5 6 7)
each(move{,1},m)

返回:
image


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