How to plot Phasor in MATLAB - matlab

Question

I have been working on Data Compression through SDT algorithm. I have been given a task to compress the data having 20001 points and I successfully compressed it into 944 points. Now I want to plot phasors in MATLAB. How to do it?
I used plot3 command but unfortunately could not get the desired result.
My code:
clear
clc
load('s.mat');
[N,~]=size(a(:,1));
b=[]
s=1; %storage point
a(s,6)=a(1,2); %vs, store the first phasor
a(s,5)=a(1,1); %ts
a(s,7)=a(1,3); %alphas
for n=3:1:N
p=n-1;
vp=a(p,2);
tp=a(p,1);
alphap=a(p,3);
vn=a(n,2);
tn=a(n,1);
alphan=a(n,3);
vs=a(s,6); %vs
ts=a(s,5);%ts
alphas=a(s,7);%alphas
for i=s+1:n-1 %Condtion for Vi and Current Points
ti=a(i,1);
alphai=a(i,3);
vi=a(i,2)*(cos(alphai)+1i*sin(alphai));%Phasors (Vi)
vcomp=((vn-vs)/(tn-ts))*(ti-ts)+vs;
alphacomp=((alphan-alphas)/(tn-ts))*(ti-ts)+alphas;
vcpx=vcomp*(cos(alphacomp)+1i*sin(alphacomp));%Phasors (Vcomp)
%Etve condition to convert ploar into rectangular components
e_TVE=norm((vcpx-vi),2)/norm(vi,2);%etve condition
a(i,4)=e_TVE;
if e_TVE<=0.001
continue;
else
s=p;
a(s,6)=vp; %vs
a(s,5)=tp;%ts
a(s,7)=alphap;%alps
% a(s,8)=a(p,6)*(cos(a(p,7))+1i*sin(a(p,7))); %Phasors of Storage point
break;
end
end
end
a(n,6)=vn; %vs,reserve the last data
a(n,5)=tn;%ts
a(n,7)=alphan;%alps
x=1;
for y=1:1:20001
if a(y,5)>0 || a(y,6)>0 || a(y,6)>0
b(x,1)=a(y,5);
b(x,2)=a(y,6);
b(x,3)=a(y,7);
x=x+1;
end
end
Figure 1 is the original (Uncompressed data):
Figure 2 is the compressed data result:
Figure 3 is the desired result: