for loop increment problem

Hello,

I am having a problem with my for loop,

I want it to generate every possible plot for r between 2.1 and 4 with 0.1 increment,

what am I doing wrong

'I am a beginner

clc
clear
% first we should note that this is a log-log plot
% Let's introduce k first
k = logspace(0, 4, 100); %connectivity of a vertix
PK1= k.^(-2.9+0.1); % for gamma equal 2.9-0.1 
PK2= k.^(-2.9-0.1); % for gamma equal 2.9+0.1
for r=2.1:4
    
    PK3=k.^(-r); %for gamma changing between 2.1 and 4
    loglog(k,PK3,'s')
    hold on
    loglog(k,PK1,'s') % plot with squares that describe gamma=2.9-0.1
    loglog(k,PK2,'o') %plot with rounds that describe gamma=2.9+0.1
    loglog(mean(k),'--', 'LineWidth',5)
    hold off
    r=r+0.1;
end

[Faruk Ortes]

Dear Nouha,

Please try r=2.1:0.1:4 instead of r=2.1:4. You should use your increment value in for loop.

Keep up good work

Answer 1

[KSSV]

clc
clear
% first we should note that this is a log-log plot
% Let's introduce k first
k = logspace(0, 4, 100)'; %connectivity of a vertix

r = 2.1:0.1:4 ; 
PK1 = k.^(-r) ;  
loglog(k,PK1)