The code is correct, however I keep getting this error: Invalid color, marker, or line style.

Question

louis 2024-4-12

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https://ww2.mathworks.cn/matlabcentral/answers/2106366-the-code-is-correct-however-i-keep-getting-this-error-invalid-color-marker-or-line-style

评论： louis 2024-4-14

采纳的回答： Fangjun Jiang

% Parameters

f = 10; % Frequency in Hz

a = 1;

fs = 100; % Sampling rate in Hz

fst = 1; % Sampling time in seconds

ts = 1/100;

% Time axis

time = 0:ts:1;

% Complex sine wave

s = a* exp(j *2 * pi* f* t);

% Real and imaginary parts

real_s = real(s);

imag_s = imag(s);

% Plot

figure;

plot(t, real_s, 'r.*', t, imag_s, 'b-*');

xlabel('Time (s)');

ylabel('Amplitude');

title('10 Hz Signal Time-Domain Graph');

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Stephen23 2024-4-13

编辑：Stephen23 2024-4-13

"The code is correct"

It is not correct to specify two markers:

https://www.mathworks.com/help/matlab/creating_plots/specify-line-and-marker-appearance-in-plots.html

louis 2024-4-14

Two marks isn't correct. Got it, thank you.

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Answer 1

Fangjun Jiang 2024-4-12

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2106366-the-code-is-correct-however-i-keep-getting-this-error-invalid-color-marker-or-line-style#answer_1440626

编辑：Fangjun Jiang 2024-4-12

在 MATLAB Online 中打开

See the possible marker symbol and line symbol

help plot

Various line types, plot symbols and colors may be obtained with
PLOT(X,Y,S) where S is a character string made from one element
from any or all the following 3 columns:
b     blue          .     point              -     solid
g     green         o     circle             :     dotted
r     red           x     x-mark             -.    dashdot 
c     cyan          +     plus               --    dashed   
m     magenta       *     star             (none)  no line
y     yellow        s     square
k     black         d     diamond
w     white         v     triangle (down)
^     triangle (up)
<     triangle (left)
>     triangle (right)
p     pentagram
h     hexagram
For example, PLOT(X,Y,'c+:') plots a cyan dotted line with a plus 
at each data point; PLOT(X,Y,'bd') plots blue diamond at each data 
point but does not draw any line.