How can I write a loop, which can make the parameter "V" change with a cyclic variable "i"?

My code is:

netlist = ['D:\1\MATLAB\mine.txt'];
code =['D:\\1\\MATLAB\\mine.asc\r\n'...
  'R1 N001 0 {R}\r\n'...
  'C1 N001 0 {C}\r\n'...
  'V1 N001 0 {V}\r\n'...
  '.tran .1\r\n'...
  '.params R = 1000 C = 0.001 V = 15\r\n'...
  '.backanno\r\n'...
  '.end\r\n'];

fid = fopen(netlist,'w+');
fprintf(fid,code);
fid = fclose(fid);

I have to make the parameter "V" change with a cyclic variable "i". Is there any way to do that?

[Ujjwal Pratik]

Hi Zhenyu ,

I am facing a similar issue.

Can you share your code to show how you used "strcat" and "num2str" within a loop.?

Answer 1

[Vladimir Sovkov]

Use Matlab functions "strcat" and "num2str" within a loop.

[Zhenyu Wu]

That really works. Thank you!

[Ujjwal Pratik]

I am facing a similar issue.

Can you share your code to show how you used "strcat" and "num2str" within a loop.?

[Zhenyu Wu]

Of course. Here is my code.

netlist = ['D:\1\MATLAB\mine.net'];

code1 =['D:\\1\\MATLAB\\mine.asc\r\n'...

'R1 N001 0 {R}\r\n'...

'C1 N001 0 {C}\r\n'...

'V1 N001 0 SINE(0 {ampl} {freq})\r\n'...

'.tran .1\r\n'];

code2 =['.params R = 1000 C = 0.001 V = 15\r\n'];

code3 =['.backanno\r\n'...

'.end\r\n'];

for i=1:10

v=15*i;

vv=num2str(v);

code2=strcat('.params R = 1000 C = 0.001 V = ',vv);

fid = fopen(netlist,'w+');

fprintf(fid,code1);

fprintf(fid,code2);

fprintf(fid,code3);

fid = fclose(fid);

end;