How do I split a string on a delimiter in Bash?

You can set the internal field separator (IFS) variable, and then let it parse into an array. When this happens in a command, then the assignment to IFS only takes place to that single command’s environment (to read ). It then parses the input according to the IFS variable value into an array, which we … Read more

rbind error: “names do not match previous names”

The names (column names) of the first dataframe do not match the names of the second one. Just as the error message says. If you do not care about the names of the 3rd or 4th columns of the second df, you can coerce them to be the same: Then things should proceed happily.

Categories R

Truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all()

The or and and python statements require truth-values. For pandas these are considered ambiguous so you should use “bitwise” | (or) or & (and) operations: These are overloaded for these kind of datastructures to yield the element-wise or (or and). Just to add some more explanation to this statement: The exception is thrown when you want to get the bool of a pandas.Series: What you hit was a place where the operator implicitly converted … Read more

How do I update Anaconda?

What 95% of people actually want In most cases what you want to do when you say that you want to update Anaconda is to execute the command: (But this should be preceeded by conda update -n base conda so you have the latest conda version installed) This will update all packages in the current environment to the latest version — … Read more