Replace Number array with characters

I have the following code:

function[]=fruit_find(volt)

fprintf("Voltage"+'\t\t'+"Fruit");

fprintf("\n------------------");

a=find(volt>=0 & volt<=10);

p=find(volt>10 & volt<=20);

g=find(volt>20 & volt<=30);

o=find(volt>30 & volt<=40);

u=find(volt>40 | volt<0);

m=[a,p,g,o,u]

m=sort(m);

fprintf("\n%.1f"+'\t\t\t\t'+"A",volt(a));

fprintf("\n%.1f"+'\t\t\t'+"P",volt(p));

fprintf("\n%.1f"+'\t\t\t'+"G",volt(g));

fprintf("\n%.1f"+'\t\t\t'+"O",volt(o));

fprintf("\n%.1f"+'\t\t\t'+"U",volt(u));

end

The output I need should look like this:

Voltage Fruit

---------------------------

18.0 P

33.0 O

31.0 O

34.0 O

15.0 P

37.0 O

10.5 P

48.0 U

50.0 U

38.0 O

...

So I was thinking of making a character array with the letters in the indexes of the numbers and printing them in fprintf, are their better ways to do this (without loops).

volt = [18 33 31 34 15 37 10.5 48 50 38 35 39 42 33 31 1 5 9 13 11 27 35 -1 46 22 6 19 36];

Thank you

Answer 1

[Andrei Bobrov]

volt = [18 33 31 34 15 37 10.5 48 50 38 35 39 42 33 31 1 5 9 13 11 27 35 -1 46 22 6 19 36];
edges = [-inf,0:10:40,inf];

fruit = discretize(volt,edges,{'u','a','p','g','o','u'});
T = table(volt(:),fruit(:),'VariableNames',{'Voltage','Fruit'});

[Mohit Garg]

Is there an easier way, with less complicated methods (that uses the find function as I have to use it)?

[Andrei Bobrov]

"Easier way" with find ! :)

edges = 0:10:40;

[~,i] = find(volt(:)' > edges(:));
ii = accumarray(i,1) + 1;
s = {'u','a','p','g','o','u'}';
T = table(volt(:),s(ii),'VariableNames',{'Voltage','Fruit'});

else "easier way" without find

i = sum(volt(:)' > edges(:)) + 1;
s = {'u','a','p','g','o','u'}';
T = table(volt(:),s(i),'VariableNames',{'Voltage','Fruit'});