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plot values in the loop

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Ani Asoyan
Ani Asoyan 2020-4-3
关闭： darova 2020-4-3
Hello
my code is something like this
p=3
for k=1:p
%something
if %something
d=d+1
elseif %something
d=d-2
end
plot(k,d,'o')
hold on
end
I get three values of d corresponding to three values of k. I want to plot these values so that the x axies will be the values of k and the y axis will be the values of d
The thing is, with this code I get only points, but I want to link them with lines. How can I do that?
Thank you
  3 个评论
显示 1更早的评论
Mehmed Saad
Mehmed Saad 2020-4-3
the easiest way is to store your variables in a vector with each iteration and plot them at the end of for loop, in this way they will be joined together
Ani Asoyan
Ani Asoyan 2020-4-3
I've tried with vectors, but the thing is,,, d is a variable that is defined in a separate function file,, and when I make it a vector, it gives me errors

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回答（2 个）

Jakob B. Nielsen
Jakob B. Nielsen 2020-4-3
do
plot(k,d,'o-')
instead, that will give you o's connected by lines.
  2 个评论
Mehmed Saad
Mehmed Saad 2020-4-3
i don't think so sir
it wont
try it
Ani Asoyan
Ani Asoyan 2020-4-3
sorry it didn't work
KSSV
KSSV 2020-4-3
p=3 ;
k = 1:p ;
val = zeros(1,p) ;
for i = 1:length(p)
%something
if %something
d=d+1
val(i) = d ;
elseif %something
d=d-2
val(i) = d ;
end
end
plot(k,val,'-o')
  4 个评论
显示 2更早的评论
KSSV
KSSV 2020-4-3
编辑：KSSV 2020-4-3
Show us the full code which gave this result.
Ani Asoyan
Ani Asoyan 2020-4-3
clear all
close all
clc
%defining government's steps
x1=0;
x2=1;
%defining public's steps
x_e1=0;
x_e2=1;
%defining reforms
N1=0;
N2=1;
%combinations
A=[x1, x2 ];
B=[N1, N2];
C=[x_e1, x_e2];
[m,n,p] = ndgrid(A,B,C);
Z = [m(:),n(:),p(:)];
p=3
d=0.5
k=1:p;
val=zeros(1,p);
for i=1:length(p)
%parameterizing function of government's payoff
a=2; b=2; c=0.5; e=0.5;
u_g = @(x, x_e, N)(-0.5*a*x.^2+b*(x-x_e)-c*N+e*u_p(x,x_e,N, d));
%linking government's payoff function to data
g=(u_g(Z(:,1),Z(:,3), Z(:,2) ).');
%linking public's payoff function to data
p=(u_p(Z(:,1), Z(:,3), Z(:,2),d).');
gp=reshape(g,[4,2]).' ;%government's payoff matrix
pp=reshape(p, [4,2]).' ;%public's payoff matrix
num2strcell = @(m) arrayfun(@num2str, m, 'UniformOutput', false); %function to convert matrix to cell array of strings
payoffs=strcat(num2strcell(gp), num2strcell(pp))
n=4; m=2;
for i=1:n
A(i)=max(pp(:,i));
attainedA=(max(pp, [] ,1)==pp);
end
for v=1:m
if all(A==pp(v,:))
fprintf('a dominant strategy for public is %d\n',v');
else fprintf ('No dominant strategy for public');
end
end
for j=1:m
B(j)=max(gp(j,:));
attainedB=( max(gp,[],2)==gp );
end
for l=1:n
if all (B==gp(:,l))
fprintf('a dominant strategy for government is %d\n',l');
else fprintf ('No dominant strategy for government');
end
end
result = payoffs(attainedA & attainedB)
gov=gp(attainedA & attainedB)
pub=pp(attainedA & attainedB)
T = array2table(payoffs,'VariableNames',{'X1_N1','X2_N1','X1_N2','X2_N2'},'RowNames',{'x_e1','x_e2'})
if (gov==gp(1,1) || gov==gp(2,1) || gov==gp(1,2) || gov==gp(2,2) )
d=d-0.2
val(i)=d;
elseif (gov==gp(1,3) || gov==gp(2,3) || gov==gp(1,4) || gov==gp(2,4) )
d=d+3
val(i)=d
end
d
end
plot(k,val,'-o')
and there is also one function
function u=u_p(x,x_e,N,d)
u = -(x-x_e).^2+N.*d;
end

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