以下是一个将Excel数据每一列从大到小重新编号取代原值的MATLAB代码示例:
时间: 2024-02-17 13:04:33 浏览: 25
Sure, here's an example MATLAB code that sorts the columns of an Excel data file in descending order and renumbers them:
```matlab
% Read Excel file and store data in a matrix
data = xlsread('excel_file.xlsx');
% Sort each column in descending order
sorted_data = sort(data, 'descend');
% Renumber the columns in the sorted data matrix
num_cols = size(data, 2);
renumbered_data = zeros(size(sorted_data));
for i = 1:num_cols
renumbered_data(:, i) = i;
end
% Save the renumbered data to a new Excel file
xlswrite('renumbered_excel_file.xlsx', renumbered_data);
```
Note that this code assumes that the Excel file contains only numerical data. If there are non-numeric values in the file, you may need to modify the code to handle those appropriately.