Import Data from an Excel Spreadsheet, sum the data for one column

5 vues (au cours des 30 derniers jours)
Lin Jun Lee
Lin Jun Lee le 9 Jan 2019
Use importdata() to import the population data of each country from the data file called World Population.xlsx.
Calculate the total population of each year for each of the six major areas. - I am not sure what to use for this? sumof? sum?
This is what I've written so far.
%% Import population data
filename = 'World Population.xlsx';
[A]=importdata(filename)
  2 commentaires
Akira Agata
Akira Agata le 9 Jan 2019
I think possible solution will depends on data structure in your Excel file. If possible, could you upload your file?
Lin Jun Lee
Lin Jun Lee le 9 Jan 2019
It's okay, I've figured it out. Thanks anyway.

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Réponses (1)

Steven Remington
Steven Remington le 11 Jan 2019
In order to get the sum of an array, You can use the "sum" function that I have linked below.
https://www.mathworks.com/help/matlab/ref/sum.html
If you are trying to get a subset of the actual original array, you'll have to index into the array to select the data before performing the sum. A good resource for array indexing is the following link:
https://www.mathworks.com/help/matlab/math/array-indexing.html

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