streamlining or sliming endless if-elseif of rem function, How?

Hello, i am currently need to streamlining/sliming if-elseif of rem function, because it will be endless

so here is the problem.

i have to create if-elseif of rem function in slimmer way because the N value will be much higher (20 to 50 i think) so i have to make the statement if-esleif like this:

• if rem_f == 1
• elseif rem_f == 2
• ....
• elseif rem_f == 49
• else %rem_f == 50

statement inside the if-elseif rem_f is identical. here's the code. please kindly give me some guidance of this problem.

much love.

%%%%%%%%%%%%%%%%%%%%%%%%%% INPUT DATA
N =3 % 3 varieties of foce calc, or/and initial forces
m_tol = zeros(1,N)
for bbm=1:N
    m_tol(1,bbm)=m_tol(1,bbm)+ 0.1*bbm
end
act_f = (zeros(12,1)+1)*10
afl_inc = (zeros(12,N)+1)*20
afl_inc(1,:) = afl_inc(1,:) + [ 0 10 20 ]
afl_dec = (zeros(12,N)+1)*30
afl_dec(1,:) = afl_dec(1,:) + [ 0 10 20 ]


%%%%%%%%%%%%%%%%%%%%%%%%%%% CORE CODE LINE
calc = 0;
for bbb = 1:4
    rem_f = rem(calc,N)+1
    calc = calc + 1;
%%
    if rem_f == 1
        if m_tol(rem_f) < 0.90
            act_f = act_f + afl_inc(:,rem_f)
        elseif m_tol(rem_f) > 1
            act_f = act_f + afl_dec(:,rem_f)
        else
            act_f = act_f
        end
%%        
    elseif rem_f == 2
        if m_tol(rem_f) < 0.90
            act_f = act_f + afl_inc(:,rem_f)
        elseif m_tol(rem_f) > 1
            act_f = act_f + afl_dec(:,rem_f)
        else
            act_f = act_f
        end
%%        
    else %rem_f == 3
        if m_tol(rem_f) < 0.90
            act_f = act_f + afl_inc(:,rem_f)
        elseif m_tol(rem_f) > 1
            act_f = act_f + afl_dec(:,rem_f)
        else
            act_f = act_f
        end
    end
    
% there should be calculation for generating m_tol each loop, but i leave
% it for later
%edit: m_tol 1 2 3 change to value of rem_f
end

Answer 1

[Chunru]

N =3 % 3 varieties of foce calc, or/and initial forces
m_tol = zeros(1,N)
for bbm=1:N
    m_tol(1,bbm)=m_tol(1,bbm)+ 0.1*bbm
end
act_f = (zeros(12,1)+1)*10
afl_inc = (zeros(12,N)+1)*20
afl_inc(1,:) = afl_inc(1,:) + [ 0 10 20 ]
afl_dec = (zeros(12,N)+1)*30
afl_dec(1,:) = afl_dec(1,:) + [ 0 10 20 ]
%%%%%%%%%%%%%%%%%%%%%%%%%%% CORE CODE LINE
calc = 0;
for bbb = 1:4
    rem_f = rem(calc,N)+1
    calc = calc + 1;
    
    % One if-else should be sufficient
    if m_tol(rem_f) < 0.90
        act_f = act_f + afl_inc(:,rem_f)
    elseif m_tol(rem_f) > 1
        act_f = act_f + afl_dec(:,rem_f)
    else
        act_f = act_f
    end
    
end