if and else statement

i have points value of pf =160801x1 (400x400 grid)

my plan is to devide each point into cell that consist of 4 nodes

using the script

n=nan(160000,1); 

for x=1:160000
   
  if (1<=x) & (x<=400)
   kn(x,:)=1/4*(pf(x,1)+pf(x+1,1)+pf(801-x,1)+pf(802-x,1));
  elseif  x<=800 
            kn(x,:)=1/4*(pf(1202-x,1)+pf(1201-x,1)+pf(1602-x,1)+pf(1603-x,1));
  elseif  x<=1200
         kn(x,:)=1/4*(pf(1603-x,1)+pf(1602-x,1)+pf(2003-x,1)+pf(2004-x,1));
     elseif x<=1600
        kn(x,:)=1/4*(pf(2004-x,1)+pf(2003-x,1)+pf(2404-x,1)+pf(2405-x,1));
        elseif x<=2000
                 kn(x,:)=1/4*(pf(2405-x,1)+pf(2404-x,1)+pf(2805-x,1)+pf(2806-x,1));
                 
                 ....,....
  else x<=160000
                 

i think its takes time since doing the same wrote until 160000

anyone could help me to make it simple?

[Arif Hoq]

please attach your data. i think you can use reshape function rather than for loop

Answer 1

[Agung Putra]

please kindly find the data as point x,y and z axis