Hi
I understand you want to plot the bode magnitude plot in log10 scale.
You can follow the following steps for it:
- Obtain the bode magnitude values using the "bode" function.
- Convert the values to log scale using the "log10" function
- Plot the obtained values in log10 base against frequency.
I'm attaching an example code and documetation links for the functions used below
H=tf([1],[1,1]); % sample transfer function
[mag,phase,wout] = bode(H); % obtain magnitude response
magLog10 = log10(mag); % convert to log10 base
magLog10 = reshape(magLog10, [size(wout),1]);
plot(log10(wout), magLog10)
