Understanding the given lines of code

1 次查看（过去 30 天）

显示更早的评论

chaaru datta 2024-1-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2073806-understanding-the-given-lines-of-code

评论： Aquatris 2024-1-24

采纳的回答： Cris LaPierre

在 MATLAB Online 中打开

Hello all, I am trying to understand the meaning of following lines of code, but not getting it clearly.

file_x_train = strcat( file_px, num2str(ii),'_M',num2str(M), '_N',num2str(N),'_', num2str(SNRdB),'dB.mat' );
file_h_train = strcat( file_py, num2str(ii),'_M',num2str(M), '_N',num2str(N),'_', num2str(SNRdB),'dB.mat' );
m1=matfile( file_x_train,'writable',true );
m1.x_subtrain =data_SNR_train;

where, M = number of antennas, N = number of elements, SNRdB is a constant value say 10 decibels.

I understood that first and second line of code is related to filename for a MAT file.

But I am not getting what does third and fourth line of code indicates.

Any help in this regard will be highly appreciated.

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。

采纳的回答

Cris LaPierre 2024-1-24

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2073806-understanding-the-given-lines-of-code#answer_1396606

编辑：Cris LaPierre 2024-1-24

在 MATLAB Online 中打开

Have you tried asking in MathWorks AI Chat Playground?

https://www.mathworks.com/matlabcentral/playground/new

After providing it your code and description, I asked it to provide a comment for each line. Here are the results

% Create file names based on ii, M, N, and SNRdB
file_x_train = strcat( file_px, num2str(ii),'_M',num2str(M), '_N',num2str(N),'_', num2str(SNRdB),'dB.mat' );
file_h_train = strcat( file_py, num2str(ii),'_M',num2str(M), '_N',num2str(N),'_', num2str(SNRdB),'dB.mat' );
% Create a matfile object with write access using the file name from above
m1=matfile( file_x_train,'writable',true );
% Assign the variable data_SNR_train to the x_subtrain property of the matfile object
m1.x_subtrain = data_SNR_train;