Filling an array with indices without loops/if-statements

I'm trying to develop this code where I have to fill an array with indices that meet the conditions of habitable planets without using any sort of if-statements or loops. I have no idea how to tacke this problem and any hints would be greatly appreciated. I did try one way, as shown below but I'm sure I'm not doing it correctly.

ind_habit=[(rad > 0.4 && rad < 2.5) && (orb > 90 && orb < 802) && (temp >186 && temp <295) && (dist > 0.74 && dist < 1.84)];

%fill this array with the indices of all planets that are potentially habitable

%%Must meet below requirements:

% % rad > 0.4 && rad < 2.5

% % orb > 90 && orb < 802

% % temp >186 %% temp <295

% % dist > 0.74 && dist < 1.84

Answer 1

[Kevin Phung]

if T is your table with rows of planets, and columns of rad, orb, and temp, you can use logical indexing:

% % rad > 0.4 && rad < 2.5
% % orb > 90 && orb < 802
% % temp >186 %% temp <295               
% % dist > 0.74 && dist < 1.84  

rad_condition = and(T.rad > 0.4, T.rad < 2.5);
orb_condition = and(T.orb > 90, T.org < 802);
temp_condition = and(T.temp > 186,T.temp < 295);
dist_condition = and(T.dist > 0.74, T.dist < 1.84);

%combine these conditions into logical matrix
C = [rad_condition orb_condition temp_condition dist_condition];
ind = find(any(C,2))  %any(C,2) locates only the rows where all the values are true, 
                      % find() then returns those indices.

T(ind,:) % will list all habitable 

[Melissa Lopez]

Thanks. I found this way too, I think both would give out the same output.

ind_habit= [[rad > 0.4 & rad < 2.5],[orb > 90 & orb < 802],[temp >186 & temp <295],[dist > 0.74 & dist < 1.84]];