How to develop a ramp up of values into a matrix

I am trying to develop a ramp up. so i have an empty matrix named SL, and im trying to assign values to it. I want the first PnC(1), (50 values in this case) of the SL matrix to be a ramp up from 200 to 210. A ramp up being a literal ramp, so the values increase based on the gradient between 200 and 210 and the rest of the SL matrix, the values being 210.

My code and model is rather long so ive tried to include the relevant code. What i have at the moment is a steady step up (first 50 values being 200 and then >50 being 210).

%Number of Positions and Impacts
In = [50, 60, 75, 375, 420, 360];
Pn = sum(In);
PnC = cumsum(In);

%Time
T = 5400;                   
INT = 900;
TINT = 0:INT:T;

n = numel(TINT);

TVpieces = cell(1, n-1);
for iter = 1:n-1
    Inc = INT/In(iter);
    TVpieces{iter} = TINT(iter):Inc:(TINT(iter+1)-Inc);
end
TV = [TVpieces{:}];

SL = zeros(Pn,1);

for i = 1:Pn

%Source Level
    if i<=PnC(1)
        SL(i) = 200; %(1/90)*TVpieces{1,1} + 
    else
        SL(i) = 210; %+ randi([-1 1]);
    end
    
end
   
    set(plot(TV,SL,'.'),'markersize',3)

as you can see noted out i have tried to develop the ramp up but having no success.

[Adil Saeed]

i have just editted my original post to make more sense in terms of the code, i am still unable to produce the graph i want within my code

Answer 1

[Matt J]

n=100; PnC=50;

SL=repelem(210,1,n);
SL(1:PnC(1))=linspace(200,210,PnC(1));

plot(SL); axis padded

[Adil Saeed]

to be integrated into my code this does not work, but i will try to work around it

[Matt J]

Does this not produce the ramp shape that you intended?

[Adil Saeed]

it does, the graph is good, but it doesnt fit into my code due to different matrix sizes as shown above

[Adil Saeed]

I accepted this as I was able to use and manipulate what you did for what was needed