Save While-loop to vector

I have this while loop which works very well and gives the correct output data but as it ends it only saves the latest datapoint, how can I save every loopdata into a vector?

t0=0.15; % Initial time
v0=46.5285; % Initial velocity
h0=3.4896; %Initial height
dt=0.001; % Timesteps/Precision
m=0.05; %Mass
g=9.81; % The gravitational constant

Velocity2=46.5285;

t = t0;
while Velocity2>=-20
   Velocity2=hastighet(acceleration(0,m,g),t,v0,t0);
   Height2=hojd(acceleration(0,m,g),t,h0,v0,t0);
     t=t+dt;
end

Really appreciate your help!

[ranbo95]

Try assigning a zeros matrix first then assigning values to it, i.e;

i=1
%put your other details here
while XXX
  vhmatrix=(100,2) %assigning a matrix with 2 columns and 100 rows
  vhmatrix(i,1)=Velocity2(i)
vhmatrix(i,2)=Height2(i)
i=i+1
end

i is your index, which you need to refer to a cell of the matrix. Try using something like this!

Answer 1

[Mahdi]

Change it to the following:

VelocityVector=[];
while Velocity2>=-20
Velocity2=hastighet(acceleration(0,m,g),t,v0,t0);
VelocityVector=[VelocityVector; Velocity2];
 Height2=hojd(acceleration(0,m,g),t,h0,v0,t0);
   t=t+dt;
end

Then all your data is saved in VelocityVector.

[fxo]

Thank you SO much, really great!

[not]

excellent help

Answer 2

[Matt Kindig]

Make your variables into vectors, by indexing through them:

index = 1;

while Velocity2(index) >=-20
   Velocity2(index)=hastighet(acceleration(0,m,g),t,v0,t0);
   Height2(index)=hojd(acceleration(0,m,g),t,h0,v0,t0);
   t(index)=t(end)+dt;
   index = index+1;
end

[toosky]

Great answer, very helpful for my current problem. Thanks!

Answer 3

[rahul bathini]

can some one give me a simpler example like storing the value of 2 table a1=2,a2=4,a3=6.........