Graph does not plot/show zero-zero points

Hello there,

I'm trying to plot two 1-D arrays, Time_value vs Charge_value, however I can't get the plot to display all the points, specifically the 0-0 points.

Time_value and Charge_value are arrays with 24 data points with 22 non-zero values each. I'd like to have the 0 vs 0 points displayed on the x-axis as well ith he non-zero values being the peaks.

E_Cap= 15.7; %kWh
SOC_End= 100; % percentage
SOC_Start= 0; % percentage
T_Char= 0.1769; % h/kWh

for i = 1:1      
                  z = randi(100);                    
                  Minutes = randi(60);                
                                   
                  %Arrival times
                  if     z <= 1.1                     
                          T_Arr = 0;
                  elseif z <= 1.2
                          T_Arr = 60;
                  elseif z <= 1.3
                          T_Arr = 120;
                  elseif z <= 2.2
                          T_Arr = 180;
                  elseif z <= 3.5
                          T_Arr = 240; 
                  elseif z <= 5.5
                          T_Arr = 300;
                  elseif z <= 9.5
                          T_Arr = 360;
                  elseif z <= 14.1
                          T_Arr = 420;
                  elseif z <= 17.7
                          T_Arr = 480;
                  elseif z <= 21.1
                          T_Arr = 540; 
                  elseif z <= 26
                          T_Arr = 600;
                  elseif z <= 32.9
                          T_Arr = 660;
                  elseif z <= 38.3
                          T_Arr = 720; 
                  elseif z <= 43.4
                          T_Arr = 780;        
                  elseif z <= 48.5
                          T_Arr = 840;        
                  elseif z <= 55.2
                          T_Arr = 900;         
                  elseif z <= 64.3
                          T_Arr = 960;        
                  elseif z <= 74.4
                          T_Arr = 1020;        
                  elseif z <= 81.5
                          T_Arr = 1080;        
                  elseif z <= 88.3
                          T_Arr = 1140;        
                  elseif z <= 92.6
                          T_Arr = 1200;        
                  elseif z <= 96.7
                          T_Arr = 1260;
                  elseif z <= 99
                          T_Arr = 1320;        
                  else   
                          T_Arr = 1380;
                  end
                  T_Arr = T_Arr + Minutes;          
                  T_Arr = T_Arr/60;                 
                  T_Arr = round(T_Arr);
                  
                  %Calculation of the end time of the charging process
                  E_Char = E_Cap * (SOC_End-SOC_Start)/100;
                  T_Dur = E_Char*T_Char;
                  
                  T_End = T_Arr+T_Dur;
                  T_End = round(T_End);

                  Time_value=zeros(1,24);
                  Time_value(T_Arr)=T_Arr;
                  Time_value(T_End)=T_End; 

                  Charge_value=zeros(1,24);
                  Charge_value(T_Arr)=E_Char;
                  Charge_value(T_End)=E_Char;                     
end          
       disp(Time_value)
       disp(Charge_value);
       scatter(Time_value,Charge_value,'o')