Matlab中输入数据至文本文件的命令之一

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1、

save filename dataarray -ASCII

>> A=rand(3,4);
>> save savetxt.txt A -ASCII
>> A
A =
0.8147 0.9134 0.2785 0.9649
0.9058 0.6324 0.5469 0.1576
0.1270 0.0975 0.9575 0.9706

savetxt.txt:

8.1472369e-01 9.1337586e-01 2.7849822e-01 9.6488854e-01
9.0579194e-01 6.3235925e-01 5.4688152e-01 1.5761308e-01
1.2698682e-01 9.7540405e-02 9.5750684e-01 9.7059278e-01

2、

dlmwrite(filename,M,'D')

filename为待写入数据的文件名

M为写入到文件中的数值阵列

'D'为元素之间的分隔符

>> A=rand(3,4);
>> dlmwrite('mydata.txt',A,';');

'mydata.txt'：

0.95717;0.14189;0.79221;0.035712
0.48538;0.42176;0.95949;0.84913
0.80028;0.91574;0.65574;0.93399

>> dlmwrite('mydata.txt',A,'newline','pc');

0.95717,0.14189,0.79221,0.035712
0.48538,0.42176,0.95949,0.84913
0.80028,0.91574,0.65574,0.93399

3、

fprintf(fileID,format,A,.....)

fprintf(fileID,A)

count=fprintf(fileID,format,A)

count为字节数，fprintf函数向fileID标示的文件中写入的字节数

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