# How to solve this issue Variable ‘X’ is not fully defined on some execution paths.

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Dear All,

I have a code into a MATLABFUNCTION block of Simulink that jump out this error message “

Variable ‘CONDICIONTRAMO’ is not fully defined on some execution paths. Function ‘Battery_Control/Function_Cruz_v2’ (**#25.1881.1895**), line 57, column 12: “CONDICIONTRAMO” Launch diagnostic **report**.”

Anyone of you can help me out to find the way to solve this ? Please.

function [SOC_CC, Bat_charge] = BUsage(top, SOC, SOC_Seg, SOCint, W_demand, Power_PV)

if SOC>=SOC_Seg

SOC_CC=0;

Bat_charge=0;

return

else

if SOC>=SOCint

SOC_CC=1;

Bat_charge=0;

end

if SOC<=SOCint

if (top>=8)||(top<=9) && Power_PV>W_demand

CONDICIONTRAMO = 1;

disp('Llano 1 de 8 a 9')

elseif (top>=8)||(top<=9) && Power_PV=10)||(top<=13) && Power_PV>W_demand

CONDICIONTRAMO = 3;

disp('Punta 1 de 10 a 13')

elseif (top>=10)||(top<=13) && Power_PV=14)||(top<=17) && Power_PV>W_demand

CONDICIONTRAMO = 5;

disp('Llano 2 de 14 a 17')

elseif (top>=14)||(top<=17) && Power_PV=18)||(top<=21)&& Power_PV>W_demand

CONDICIONTRAMO = 7;

disp('Punta 2 de 18 a 21')

elseif (top>=18)||(top<=21)&& Power_PV=22)||(top<=23)&& Power_PV>W_demand

CONDICIONTRAMO = 9;

disp('Llano 3 de 22 a 23:59')

elseif (top>=22)||(top<=23)&& Power_PV=24)||(top<=8) && Power_PV

# ANSWER

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Insert a definition of CONDICIONTRAMO = -1 (or NaN, or 12) either on top of the code, before the IF branchs, or in a finaly else branch:

`...`

elseif (top>=24)||(top<=8) && Power_PV

But then Bat_charge is not defined in all branchs. Add a default value for this variable also.

By the way, the Switch/Case-Block is hard to read. Maybe this is tougher:

% 1 2 3 4 5 6 7 8 9 10 11 12

SOC_CC_V = [1 0 1 0 1 0 1 0 1 0 1 NaN];

Bat_charge_V = [0 0 0 0 0 0 0 0 0 0 1 NaN];SOC_CC = SOC_CC_V(CONDICIONTRAMO);

Bat_charge = Bat_charge_V(CONDICIONTRAMO);

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