How do we shift the cell of a variable and replace it by NaN?

Question

Anu 2022-1-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1636135-how-do-we-shift-the-cell-of-a-variable-and-replace-it-by-nan

评论： Anu 2022-1-25

I have a variable x. The x contains a large number of values. When I open x in the workspace, I see the first value is in the 1st cell, second value is in the second cell and so on. I want to shift the the values from celll 1 to cell 5 and replace the first five cells with NaN. How will we do this?

For example, x = 20, 30, 40, 50, 60

I want to shift these values, therefore my new x after shifting will be NaN NaN NaN NaN NaN 20, 30, 40, 50, 60

Any help will really be appreciated.

Thanks.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

DGM 2022-1-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1636135-how-do-we-shift-the-cell-of-a-variable-and-replace-it-by-nan#answer_881810

在 MATLAB Online 中打开

It depends what you mean by "shift". Consider the two examples:

x = 20:20:200
x = 1×10
    20    40    60    80   100   120   140   160   180   200
a = [NaN(1,5) x] % simply concatenate
a = 1×15
   NaN   NaN   NaN   NaN   NaN    20    40    60    80   100   120   140   160   180   200
b = [NaN(1,5) x(1:end-5)] % shift right and fill with NaN
b = 1×10
   NaN   NaN   NaN   NaN   NaN    20    40    60    80   100