In MATLAB no need of variable definations you can directly initialize
x = rand(1,100);% fake data 1x100 random float numbers
m = min(x); % minimum of x
s = 0.1; % assumed step value
% y values initialized to 0
y1 = 0; y2 = 0;y3 = 0;y4 = 0;y5 = 0;y6 = 0;y7 = 0;
% loop for 100 values of x
for ii =1: length(x)
if (x(ii) >= m && x(ii) < (m+s))
y1 = y1 + 1;
elseif (x(ii) >= m+s && x(ii) < (m+2*s))
y2 = y2 + 1;
elseif (x(ii) >= m+2*s && x(ii) < (m+3*s))
y3 = y3 + 1;
elseif x(ii) >= m+3*s && x(ii) < (m+4*s)
y4 = y4 + 1;
elseif x(ii) >= m+4*s && x(ii) < (m+5*s)
y5 = y5 + 1;
elseif x(ii) >= m+5*s && x(ii) < (m+6*s)
y6 = y6 + 1;
elseif x(ii) >= m+6*s && x(ii) < (m+7*s)
y7 = y7 + 1;
end
end
