Unable to perform assignment because dot indexing is not supported for variables of this type.

11 次查看（过去 30 天）
Amelia
Amelia 2023-11-4
编辑： Arun 2024-1-4
Hello everyone.
There is the code that I want to use, but there is still error with it. How can I fix it?
AUTHMET.Hour.Format= "HH:00"
writetable (AUTHMET, '20230205_AUTHMET_hourly.txt')
  3 个评论
显示 1更早的评论
Walter Roberson
Walter Roberson 2023-11-5
Put a breakpoint in the code and run to there. show us
classs(AUTHMET)
class(AUTHMET.Hour)
There is a chance that one of those two is [] the empty array

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Arun
Arun 2024-1-4
编辑：Arun 2024-1-4
Ran in:
Hi Amelia,
I understand that you want to set the hour format to “HH:00” for AUTHMET which is a datetime data type.
The “setDefaultFormats” property would be useful in this case. Here is a modified code of your implementation that might be useful for your issue:
% sample value for AUTHMET
AUTHMET = datetime('2022-01-01 12:00:23');
% set the format for Hour as hh:00
datetime.setDefaultFormats('default','yyyy-MM-dd hh:00');
%verify the values.
display(AUTHMET.Hour); %Hour value for AUTHMET
12
display(AUTHMET.Year); %Year value for AUTHMET
2022
display(AUTHMET); %Value of AUTHMET
AUTHMET = datetime
2022-01-01 12:00
writematrix(AUTHMET, '20230205_AUTHMET_hourly.txt'); %write the text to the file.
for more information regarding the following topics please refer to the MATLAB documentation links:
1. Datetime data: https://www.mathworks.com/help/matlab/ref/datetime.html
2. Set Date and Time Display format: https://www.mathworks.com/help/matlab/matlab_prog/set-display-format-of-date-and-time-arrays.html
I hope this helps.

类别

在 Help Center 和 File Exchange 中查找有关 Dates and Time 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by