Why am i getting the error 'Undefined function or variable 'Av_Daily_Temp'' on the command window when i try to run the function, loadForecast(date, Av_Daily_Temp, isHoliday) ? Below is the the code

function y = loadForecast(date,Av_Daily_Temp,isHoliday)
% LOADFORECAST performs a day-ahead load forecast using a pre-trained
% Neural-Network model
% USAGE:
%y = loadForecast(model, date, hour, Av_Daily_Temp, isWorkingDay);
% Process Inputs
% Process inputs
date = datenum(date,'yyyy-mm-dd');
%%
if date < 7e5 % Convert from Excel numeric date to MATLAB numeric date if necessary
    date = x2mdate(date);
end
%% Classification of Dates
% Check if date is a holiday
if iscell(isHoliday)
    isHoliday = isHoliday{1};
end
if ischar(isHoliday)
    if strcmpi(isHoliday(1),'N')
        isWorkingDay = true;
    else
        isWorkingDay = false;
    end
else
    isWorkingDay = ~isHoliday;
end
isWorkingDay = logical(isWorkingDay) & ~ismember(weekday(date),[1 7]);
%% Import data
% Import historical loads from the database
try
    data = fetchDBLoadData(date-7, date-1);
catch ME %#ok<NASGU>
    %% Import historical loads from MAT file
    s = load('C:\ZETDC Electricity Load Forecasting\Load\Data\DBLoadData.mat');
  
    data = s.data;
  
    ind = data.NumDate >= date-7 & floor(data.NumDate) <= date-1;
  
    data.Hour = data.Hour(ind);
   
    data.Av_Daily_Temp = data.Av_Daily_Temp(ind);
 
    data.SYSLoad = data.SYSLoad(ind);
 
    data.NumDate = data.NumDate(ind);
end
if isempty(data.SYSLoad)
    error('Not enough historical data for forecast.');
end
    
ave24 = filter(ones(24,1)/24, 1, data.SYSLoad);
loadPredictors = [data.SYSLoad(1:24) data.SYSLoad(end-23:end) ave24(end-23:end)];

%% Create predictor matrix
% Av_Daily_Temp, Hour, Day, isWkDay, PrevWeek, PrevDay, Prev24
X = [Av_Daily_Temp (1:24)' weekday(date)*ones(24,1) isWorkingDay*ones(24,1) loadPredictors];
%% Load Models
% Load models
try
    % Load from a location where updated models can be stored
    model1 = load('C:\ZETDC Electricity Load Forecasting\Load\Models\NNModel.mat');
   % model2 = load('C:\ZETDC Electricity Load Forecasting\Load\Models\TreeModel.mat');
catch %#ok<CTCH>
    model1 = load('C:\ZETDC Electricity Load Forecasting\Load\Models\NNModel.mat');
   % model2 = load('Models\TreeModel.mat');
end
%% Perform Predicton
% Perform prediction
try
    y1 = sim(model1.net, X')';
catch ME
    % For debugging purposes if necessary
    save 'error.mat' ME model1 %model2
    y1 = zeros(24,1);
end
y2 = predict(model, X);

% Create load profile plot
fig = clf;
if isdeployed
    set(fig,'Visible','off')
end
plot([y1 y2]/1e3, '.-'); 
xlabel('Hour');
ylabel('Load (x1000 MW)');
title(sprintf('Load Forecast Profile for %s', datestr(date)))
grid on;
legend('NeuralNet','BaggedTree','Location','best');
print -dmeta

y = [y1 y2];

%#function TreeBagger
%#function CompactTreeBagger
%#function network
%#function network\sim
%#function mae

Answer 1

[madhan ravi]

Because you didn't define the input arguments while calling the function.

P.S- I won't look through your hundred lines of codes.

[TINEI MUNHENZVA]

The input arguments are being obtained from excel spreadsheet interfaced to Matlab. I thought these input arguments are automatically imported into the program. I am new to Matlab, how do i define the input arguments. I really need your assistance. Thanks in advance

[madhan ravi]

I have no idea how to interpret your code and don't accept the answer if you didn't get the answer to your question