matlab如何輸出矩陣到txt并指定數的精度 (2013-11-20 16:50:43)轉載▼
标簽： matlab 輸出資料
假設你的資料矩陣為a;
[m n] = size(a);
[filename pathname] = uiputfile{\'*.txt\',\'Select Save file\');
if ~filename
return;
else
str = [pathname filename];
fin = fopen(str,\'wt\');
for i = 1:m
for j =1:n
fprintf(fin,\'.3f\t\',a(i,j)); %指定輸出格式和小數點後有效位數
end
fprintf(fin,\'\n\');
end
fclose(fin);
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MATLAB初學者必讀
clear,clc
a = rand(12000,1004);
fid = fopen(\'2.txt\',\'w\');
fprintf(fid,[\'%f %f %f %f \' repmat(\'%f\',1,1000) \'\r\n\'],a\');
fclose(fid);