Using While Loop For Grouping Pie chart "Slices"

Hello I am writing a script for a pie chart for reaction timings from a game. I want the pie chart to depict the occurrances of different reaction speeds. I have an array 'x' with all the speeds and I wanted to catagorize them using a "while loop" and plotting these grouped variables as a pie chart. But I am having errors can someone please help me.

x= [0.66,0.38,0.01,0.01,0.13,0.01,1.38,3.96,1.04,0.01,0.39,0.38,0.36,0.32,2.61,2.73,0.01,0.95,1.94,0.01,0.01,1.18,1.42,0.01,0.37,0.45,0.01,3.31,0.77,0.04,1.45,1.38,1.00,0.03,3.05];

int n = 1;

int a = 0;

int b = 0;

int c = 0;

int d = 0;

int f = 0;

while (n<x) {

if(x==.01){

a++;

}

if(.01<=x<=.25){

b++;

}

if(.25<=x<=.75){

c++;

}

if(.75<=x<=1.0){

d++;

}

if(x>1){

f++;

}

n++;

}

h=[a,b,c,d,f];

pie(h);

Answer 1

[VBBV]

x= [0.66,0.38,0.01,0.01,0.13,0.01,1.38,3.96,1.04,0.01,0.39,0.38,0.36,0.32,2.61,2.73,0.01,0.95,1.94,0.01,0.01,1.18,1.42,0.01,0.37,0.45,0.01,3.31,0.77,0.04,1.45,1.38,1.00,0.03,3.05];
n = 1;
a = 0;
b = 0;
c = 0;
d = 0;
f = 0;
i = 1;
while i<numel(x) 
    if x(i)==.01
        a = a+1;
        
    elseif x(i)>=.01 & x(i)<=.25
        b = b+1; 
         
    elseif x(i)>=.25 & x(i)<=.75
         c=c+1;
         
    elseif x(i)>=.75 & x(i)<=1.0
         d=d+1;
         
    elseif x(i)>1
         f=f+1;
         
         n=n+1;
    end
    i = i+1;
    h=[a,b,c,d,f];
end
pie(h);

[Isaac Kadari]

Thank you respected sir or madam. This was very useful for me!