conditional Archives

Programming, r

IT Nursery

How to combine multiple conditions to subset a data-frame using “OR”?

I have a data.frame in R. I want to try two different conditions on two different columns, but I want these conditions to ...

June 3, 2022
0 Comments

How do I negate a test with regular expressions in a bash script?

Using GNU bash (version 4.0.35(1)-release (x86_64-suse-linux-gnu), I would like to negate a test with Regular Expressions. For example, I would like to conditionally ...

May 23, 2022
0 Comments

What command means “do nothing” in a conditional in Bash?

Sometimes when making conditionals, I need the code to do nothing, e.g., here, I want Bash to do nothing when $a is greater ...

May 22, 2022
0 Comments

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How to combine multiple conditions to subset a data-frame using “OR”?

How do I negate a test with regular expressions in a bash script?

What command means “do nothing” in a conditional in Bash?

Check if something is (not) in a list in Python