MATLAB: How to write correct looping

cell arraysfor loopif statementMATLAB and Simulink Student Suite

hi all
i want to read file and which is some condition
for data 1-100 is read properly
but i am confused why is the value in line X>99 i can not get rigth value
A=readfile('pf_ext_pcs_1_ts_1_t_1_000000_0.vtu')';
C = A(10217:13618);
C=cellfun(@(x)sscanf(x,'%f'),C,'UniformOutput',false);
format long g
pf=cell2mat(C);    % 0 represents fracture occurs
pf(pf<0.1) =10000; % 
km=nan(1000,1); % total cell permeability multiplier
a=1;
for x=1:10000
   km(x,:)=1/8*(pf(x,1)+pf(x+1,1)+pf(200+a,1)+pf(201+a,1)+pf(10201+a,1)+pf(10202+a,1)+pf(a+10401,1)+pf(a+10402,1));
   if x>99 &&x<199
     km(x,:)=1/8*(pf(201-a,1)+pf(202-a,1)+pf(302-a,1)+pf(303-a,1)+pf(10402-a,1)+pf(10403-a,1)+pf(10503-a,1)+pf(10504-a,1));
   elseif x > 199
         km(x,:)=1/8*(pf(302-a,1)+pf(303-a,1)+pf(403-a,1)+pf(404-a,1)+pf(10503-a,1)+pf(10504-a,1)+pf(10604-a,1)+pf(10605-a,1));
     
         elseif x > 299
             km(x,:)=1/8*(pf(403-a,1)+pf(404-a,1)+pf(504-a,1)+pf(505-a,1)+pf(10604-a,1)+pf(10605-a,1)+pf(10705-a,1)+pf(10706-a,1));

Best Answer

for x=1:10000
   if x<=99
       km(x,:)=1/8*(pf(x,1)+pf(x+1,1)+pf(200+a,1)+pf(201+a,1)+pf(10201+a,1)+pf(10202+a,1)+pf(a+10401,1)+pf(a+10402,1));
   elseif x>99 && x<=199
       km(x,:)=1/8*(pf(201-a,1)+pf(202-a,1)+pf(302-a,1)+pf(303-a,1)+pf(10402-a,1)+pf(10403-a,1)+pf(10503-a,1)+pf(10504-a,1));
   elseif x>199 && x<=299
       km(x,:)=1/8*(pf(302-a,1)+pf(303-a,1)+pf(403-a,1)+pf(404-a,1)+pf(10503-a,1)+pf(10504-a,1)+pf(10604-a,1)+pf(10605-a,1));
   else
       km(x,:)=1/8*(pf(403-a,1)+pf(404-a,1)+pf(504-a,1)+pf(505-a,1)+pf(10604-a,1)+pf(10605-a,1)+pf(10705-a,1)+pf(10706-a,1));
   end
end
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