Lab 4 Q3

[dholford]

I'm really struggling with matching trailing spaces. I've tried a number of different options for matching the sum of mission statements with trailing spaces, but once I use trimws( ) then run it again nothing changes. So I'm assuming I'm doing it wrong.

I've tried:

grepl("\s$", dat$mission)

grepl(". $", dat$mission)

grepl(" $", dat$mission)

any searching I've done has lead me to removing trailing spaces but I haven't found anything on matching trailing spaces.

[Dselby86]

Can you post an example of a string where you can't remove the trailing spaces from?

On Sun, Feb 6, 2022, 10:49 PM dholford @.***> wrote:

I'm really struggling with matching trailing spaces. I've tried a number of different options for matching the sum of mission statements with trailing spaces, but once I use trimws( ) then run it again nothing changes. So I'm assuming I'm doing it wrong.

I've tried:

grepl("\s$", dat$mission)

grepl(". $", dat$mission)

grepl(" $", dat$mission)

any searching I've done has lead me to removing trailing spaces but I haven't found anything on matching trailing spaces.

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[dholford]

Hey Dr. Selby,

Thanks for following up. Your question knocked something loose and I realized my issue was trimws( ) returns the variable without whitespaces, but it wasn't actually saving those results in the data frame. So I updated from:

trimws(dat$mission) to dat$mission <- trimws(dat$mission) and when I ran the count of trailing spaces again it worked.

[Dselby86]

In programming there is something called being a rubber duckie. Where you explain a problem to someone as if they were a rubber duckie in your bath tube, and use that to figure out the solution.

I'm glad I could be your Rubber Duckie

On Mon, Feb 7, 2022 at 9:15 AM dholford @.***> wrote:

Hey Dr. Selby,

Thanks for following up. Your question knocked something loose and I realized my issue was trimws( ) returns the variable without whitespaces, but it wasn't actually saving those results in the data frame. So I updated from:

trimws(dat$mission) to dat$mission <- trimws(dat$mission) and when I ran the count of trailing spaces again it worked.

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[dholford]

Thanks!