I am new to Mathematica and was looking for some help.
I have successfully imported an excel sheet as a dataset, however, I wanted to manipulate the dataset but realised I need a key to do so. When I imported them, the two columns of data appeared as a dataset, however, with no key. How can I assign a key to each column? It is not possible to directly assign this as there are hundreds of rows of data.
Is there a way to assign the key when importing the data or even to do this after?
If the Excel file has column headers use
Import[<file>, {"Dataset", 1}, HeaderLines -> 1]
If it does not then after the import
headers = {"Date", "Cases"}; ds[All, AssociationThread[headers, #] &]
where ds is the imported Dataset.
ds
Dataset
It would be easier to help if you provided:
The code you posted is too much of a mess to try to untangle, and I suspect that you've modified your actual code to try to simplify your question. So, it'd just be easier if you explain what you have and what your objective is.
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