Error with reading excel file

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Anders Vigen
Anders Vigen on 19 Feb 2021
Answered: Anders Vigen on 23 Feb 2021
start_date = datetime(2020,1,2,0,0,0);
end_date = datetime(2020,1,3,0,0,0);
demand = load_demand('Demand_timeseries_1hourResolution.xlsx',start_date,end_date);
figure (21)
plot(demand.Time, demand.Values)
xlabel('Time');
ylabel('Demand [MW]');
title('Demand')
I'm having bit of a frustrating issue with my scrript. I wantto read excel file in the same folder where I have my matlab file, however it keeps giving me the same error
'Unrecognized function or variable 'load_demand''
The script works for everybody else but me, so I can't find the problem.
I hope somebody can help me
  13 Comments
Walter Roberson
Walter Roberson on 20 Feb 2021
Okay, and what about on your colleague's computer? What shows up on there?
At this point, I can pretty much predict an implimentation of the function:
function demand = load_demand(filename, start_date, end_date)
T = readtable(filename);
mask = isbetween(T{:,1}, start_date, end_date);
demand = T(mask,:);
end

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Accepted Answer

Anders Vigen
Anders Vigen on 23 Feb 2021

More Answers (1)

Ani Singh
Ani Singh on 21 Feb 2021
From the error "'Unrecognized function or variable 'load_demand" looks like you do not have "load_demand" user-defined function implementation(which is not function provided by MathWorks).
Please get the "load_demand" file from your colleague's system or write implementation your function.
Example:
function demand = load_demand(fileName, startDate, endDate)
excelOutput = readtable(fileName);
query = isbetween(excelOutput{:,1}, startDate, endDate);
demand = excelOutput(query,:);
end
  1 Comment
Walter Roberson
Walter Roberson on 22 Feb 2021
According to other posts by the same user, the file turns out to have a date column and an hours column, but the hours problem had text such as '00-01' and '07-08'

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