How can I delete Columns containing Zeros without deleting small decimals in a table?

I have a large table containing small numbers. Some columns have zeros and I would like to delete those columns without deleting the other columns containing very small decimal points (ex. 0.000002). I can not directly call out the column and delete it because depending on which table I load, the columns containing 0 might be in a different location.Here is an example of the data:

I am relatively new to coding would appreciate detailed suggestions.

[Walter Roberson]

Do you want to delete a column if it contains even a single exact zero, or do you only want to delete columns that are entirely zero?

Is your table entirely numeric, or does the code need to figure out which columns are numeric?

Which MATLAB release are you using?

[Maya Gueissaz-Daoust]

I want to delete columns that are entirely exactly 0, and the table is entirely numeric. I am using Matlab R2021b

Answer 1

[Dyuman Joshi]

Assuming, the task is to delete columns where all entries are 0.

This might be one of rare cases where comparing floating point numbers with eq, == or isequal works -

%Let A be the name of your table
idx = varfun(@(x) all(x==0), A,"OutputFormat","uniform");
A(:,idx) = [];

Edit - If all the data in table is numeric, why not read/store it as a numeric array?

[Walter Roberson]

A logically equivalent version:

idx = varfun(@any, A, "OutputFormat","uniform");
A(:,~idx) = [];

However, both your code and this code would be challenged if one of the table variables has multiple columns.