Path only gives an array of the x values, why is that??

# How do you link a function

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Dameon Solestro
on 27 Nov 2021

Commented: Walter Roberson
on 9 Dec 2021

I would like to link these two functions together. Where N=3 and Np=4. So i expect 4 groups of 3x3 xy coordinates. I would like to plot each groupcoor vector on the same plot. This is not working.. Is there another way to do this?

function [x,y]=get_number(N)

%Where N is the total number of steps

x(1)=0;

y(1)=0;

%Where STP is the steps.

%The first step is the the coordinates (0,0)

for i=2:N

x(i)= rand()

y(i)= rand()

groupcoor=[x' y']

hold on

end

%pos is the position of the prisoner with every step that they take.

%Every step accounts for one second.

pos= [x', y'];

figure

plot(x',y');

hold on

end

%New function on another script called randomcheck

function [CoordinateGroup]=randomcheck(N,Np)

%[x,y] =get_xy_velocities(N);

hold on

for i=1:Np

Path=get_number(N)

CoordinateGroup(i)=Path

hold on

% x_end=[vector(:,end)]

% y_end=[vector(:,end)]

% x_end(i)=[x(N,end)]

%y_end(i)=[y(N,end)]

end

### Accepted Answer

Walter Roberson
on 27 Nov 2021

function [x,y]=get_number(N)

get_number returns two 1 x floor(N(1)) outputs (unless N(1) < 1, in which case it returns two 1 x 1 outputs)

Path=get_number(N)

You are only storing one of the outputs, which would correspond to x.

CoordinateGroup(i)=Path

And you are expecting that 1 x N vector to fit within the single output location CoordinateGroup(i)

Perhaps you want to store into a cell array, CoordinateGroup{i} = Path after having constructed Path from the x and y outputs of get_number()

Where N=3 and Np=4. So i expect 4 groups of 3x3 xy coordinates

But your function get_number returns two 1 x N, not N x N or three 1 x N .

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