FFT of single max sided from signal

I'm trying to get frequency of signal.But after applying FFT it doesn't shows 200e3 (which is given) ?

Attaching the code and picture how the end result should be.

Thanks

load ('T1.mat')
f = 200e3; % frequency
T = 1/f ;
sf = 1/t(1,2);
n =5;
tt = n*T;
t1 = 0:1/sf:tt; % total time cycle
sinewave = sin(2*pi*f*t);
figure(1)
plot(t,sinewave)
%fourier
figure
xdft = fft(sinewave,1024);
plot(abs(xdft))

Answer 1

[Mathieu NOE]

hello

this is the code fixed :

FYI, the frequency in your code is 200 and not 100 kHz as in image , but you can easily change that

cheers

clc
clearvars

load ('T1.mat')
f = 200e3; % frequency
T = 1/f ;
sf = 1/t(1,2);
n =5;
tt = n*T;
t1 = 0:1/sf:tt; % total time cycle
sinewave = sin(2*pi*f*t);
figure(1)
plot(t,sinewave)

%fourier
nfft = 1024;
xdft = fft(sinewave,nfft);


% one sidded fft spectrum  % Select first half 
    if rem(nfft,2)    % nfft odd
        select = (1:(nfft+1)/2)';
    else
        select = (1:nfft/2+1)';
    end
xdft = xdft(select)*2/nfft;
freq_vector = (select - 1)*sf/nfft;

figure
plot(freq_vector/1000,abs(xdft)) % freq divided by 1000 to be displayed in kHz
xlabel('kHz');
ylabel('Amplitude');

xlim([0 2*f/1000]);

[Ramesh Bala]

Thank you Mathieu

[Mathieu NOE]

you're welcome !