Import units from excel sheet

I want to import values and units separately from an excel file:
Capture.PNG
How can I identify the units and relate them to the values?
Instead of writing COST.u.EUR, is it possible to have it as [COSTvalue Costunits] but identified from the input file?

10 Comments

Attach the file (or a short section of one)
Is that a dropdownlist in the currency column??
Yes, it is a dropdown list. The excel is my input file, so I have restricted the possible options with dropdown lists.
Again I reiterate once more..."attach the file"
the script goes like this:
------------
% Import Data Files
RawCCostData = readtable('UserData.xlsx',"Sheet",'CCost');
% Identify Parameters
Process_i = categorical(RawCCostData.Process)
cost = RawCCostData.Cost
syms u1 u2
u = symunit;
u1 = isUnit( RawCCostData(:,2) );
u2 = isUnit( RawCCostData{:,3} );
-----------------
So when I want to convert unit systems I usually do:
Cost = unitConvert(Cost,u.USD)
But my problem is that since cost and units (currency) are inserted by different columns, they are not related together in the input file. So, how can I relate those two?
Thanks for the help
Adam Danz
Adam Danz on 21 Aug 2019
Edited: Adam Danz on 21 Aug 2019
I believe dpb was refering to the excel file UserData.xlsx.
Here is the input file
Ah! I was thinking the problem had to do with importing the spreadsheet owing to the dropdown boxes or somesuch...not to using symbolic TB and the symbolic names feature. Since I don't have that TB, not much I can actually do but to note that in the table the variables are associated by row index across all variables so reference a specific row or set of rows and you'll have all the associated data with it. I dunno how the symbolic variables interact with a table, but I'd probably convert the Currency variable to categorical as well.
To convert to another set of units in a table you would have to either pull out the data to convert to the symbolic form (and I have no idea how it would deal with currency conversion given the rate of conversion isn't a fixed number as with physical units) or have a function that uses the table data and "knows" how to do the allowable conversions of which column is associated with the column containing the currency specification.
Don't know that there is a canned solution.
I will give it a try. Thanks
If you had the financial toolbox, perhaps there's something in it dealing with currency conversions??? I don't know that, just a guess that's where something like that might reside if it exists...

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R2019a

Asked:

on 14 Aug 2019

Commented:

dpb
on 22 Aug 2019

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