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How do I use an if statement to check if a data is present on a excel sheet?

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Adithya Narasimhan
Adithya Narasimhan 2021 年 3 月 10 日
編集済み: Adam Danz 2021 年 3 月 12 日
I want to create an if condition that should check if student name and ID is present in the excel sheet.
If it is present it shoul execute the code i want it to run.
I am trying xlsread but is not working for me any suggestion?

回答 (1 件)

Adam Danz
Adam Danz 2021 年 3 月 10 日
At the top of the documentation page for xlsread there is warning that xlsread is not recommended and it suggests alternative functions (readtable, readmatrix).
If you're checking that a particular header (variable name) exists, you can use those function to read in just the header row(s).
If you're checking if a paricular name and ID exists you'll need to read in the entire table and the search the name and ID columns (hint: isequal, strcmpi, ismember).
If you get stuck and have any problems, show us where you're at and describe the issue.
  2 件のコメント
Adithya Narasimhan
Adithya Narasimhan 2021 年 3 月 10 日
Can I use somthing like
a = input('Enter name: ');
if a == readtable('StudentIDverify.xlsx')
does this work?
Adam Danz
Adam Danz 2021 年 3 月 10 日
編集済み: Adam Danz 2021 年 3 月 12 日
Not quite.
Try reading in the table using readtable and look at what it produces.
'a' will presumably be a character vector but the readtable function will read in an entire table.

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