how to save the result of each iteration of 'for' loop in a text file without replacing the previous results in the text file????

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KALYANAPU SRINIVAS
KALYANAPU SRINIVAS 2018-12-7
编辑： madhan ravi 2018-12-21
ow t
  2 个评论
KALYANAPU SRINIVAS
KALYANAPU SRINIVAS 2018-12-8
Here is the sample code
for ii = 1:Ne
enc_x(ii+1) = r*enc_x(ii)*(1 - enc_x(ii));
enc_y(ii+1) = r*enc_y(ii)*(1 - enc_y(ii));
fid=fopen('my1.bin','w');
if(enc_x(ii)>enc_y(ii))
iwant(ii)=0;
else
iwant(ii)=1;
end
fprintf(fid,'%d \n',iwant);
fclose(fid);

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回答（4 个）

Arvind Sathyanarayanan
Have you tried the fprintf command?
  1 个评论
KALYANAPU SRINIVAS
KALYANAPU SRINIVAS 2018-12-8
yes but the last value is shown. Here is the sample code
for ii = 1:Ne
enc_x(ii+1) = r*enc_x(ii)*(1 - enc_x(ii));
enc_y(ii+1) = r*enc_y(ii)*(1 - enc_y(ii));
fid=fopen('my1.bin','w');
if(enc_x(ii)>enc_y(ii))
iwant(ii)=0;
else
iwant(ii)=1;
end
fprintf(fid,'%d \n',iwant);
fclose(fid);

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KALYANAPU SRINIVAS
KALYANAPU SRINIVAS 2018-12-8
its not my1.bin ...it is my1.txt file
Arvind Sathyanarayanan
Please see my code below. I open file before my for loop and close it after the end of the for loop.
fid = fopen('Test.txt','w');
for i = 1:100
if mod(i,2)
fprintf(fid,'%d\r',i);
end
end
fclose(fid);
  7 个评论
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KALYANAPU SRINIVAS
KALYANAPU SRINIVAS 2018-12-21
fid=fopen('test.txt','w');
x(1)=0.012;
for ii = 1:10
x(ii+1) = r*x(ii)*(1 - x(ii));
y(ii+1) = r*y(ii)*(1 - y(ii));
if (x(ii)>y(ii))
i_decrypt(ii)=0;
else
i_decrypt(ii)=1;
end
fprintf(fid,'%d\r\n',i_decrypt);
end
fclose(fid);
KALYANAPU SRINIVAS
KALYANAPU SRINIVAS 2018-12-21
test.txt file should contain the outputs of the each iteration as shown i.e
for iteration one:::::12345
for iteration two::::23456
for iteration three:::::34567
for iteration four:::::23344
for iteration five:::::66777
but when above program is executed the test file contains the outputs as shown
1234523456345672334466777...................

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Elijah Smith
Elijah Smith 2018-12-18
you must open the file with "append" permissions not "write" permissions like so:
fid = fopen(my1.txt, 'a'); %this will not erase what is currently in the file

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