Selecting columns from an Excel file

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Hi
When I read an excel file by "readtable" I get the following file as an example
I am interested in getting the frequency range of 102-105 MHz only
How can I cut the file?
Thanks:)
** The original file contains a lot of columns so I am interested in entering the frequency range

Accepted Answer

Cris LaPierre
Cris LaPierre on 16 Dec 2020
Edited: Cris LaPierre on 16 Dec 2020
Use detectimportoptions and set the opts.SelectedVariableNames to be the variables (columns) you want to import. You can see several examples here. Here is another example from the readtable documenation page.
If your file contains a header row, those names can become the variable names. However, your specific request - having MATLAB figure out which columns to import by just entering a frequency range - is not native functionality. This is not to say you couldn't implement something, but it's on you to create the code to do that.
  1 Comment
Shahar ben ezra
Shahar ben ezra on 16 Dec 2020
Thank you
I needed some direction to figure out how to access the code
If I do not succeed, I will contact you again
Thanks!

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More Answers (1)

Sandeep Nagisetti
Sandeep Nagisetti on 16 Dec 2020
A similar question has been already answered in the community. You can refer to this link.
  1 Comment
Shahar ben ezra
Shahar ben ezra on 16 Dec 2020
I know this solution,
But he's not good for me,
I want to take my frequency axis
And set the frequency range as a number
And get only the range I requested
I need it this way because the file changes (exits the spectrum)
Therefore the columns are not fixed
Eventually the code will be in the app design so the user will not be able to set columns just frequency range
Hope I was understood :)

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