@rastrau I suspect you're more of a regexpert than I am, and your explanation seems plausible.

@rastrau Hey, that works! Thanks a ton!

@rastrau I don't mind tidyverse dependencies at all. I have tried stringr::str_replace() and it gave me exactly the results of sub() and gsub(), but I haven't tried str_extract() yet. I'll give it a shot. Thanks.

Is anyone good with #Rstats and #regex ? I'm having issues.

strings <- c("150 hertz", "70 hz", NA, "between 87 and 100 hz ocillations", "15hz", "triangle 110 hertz", "144Hz, Sine waveform", "It is a hysterical idling. More vibraton than sound.", NA)

I want to replace each string with the digits (well, the first set) found in it, if any. I try this:

sub("(^.*)(\\d{2,5})(.*$)", "\\2", strings)

I get this as a result:

[1] "50"
[2] "70"
[3] NA
[4] "00"
[5] "15"
[6] "10"
[7] "44"
[8] "It is a hysterical idling. More vibraton than sound."
[9] NA

I expect to get all digits (the first set in each string) if they are from 2 to 5 digits long. Instead, I only get 2 digits.

Using similar regex in #geany just to prepare this little example I got the expected behavior. I've updated and restarted R. I've used sub and gsub. Same result. If I specify \d{3,5} I get three digits. If I say \d{1,3} I get one digit. I always get the number of digits specified in the first value in the curly brackets.

Maybe R is just vomiting or something. But if you know of an issue with R and regex that results in this, please let me know.

@skinnylatte That last rule is asshole material bordering on abusive psycho.

"A society where tens of millions are unemployable is not a sign of free-market success but a powder keg."

Before the baby communists jump on this with "Then the revolution comes!" please remember that

a. The job losses, as always, will hit blue-collar and lower-educated workers the hardest. These workers are disproportionately conservative.

b. This mob of unemployed conservatives will have a lot more guns and a lot less critical thinking than the people they blame for the job losses.

c. They will not blame the billionaires; they'll blame minorities, liberals, and people living in cities.

https://thehill.com/opinion/finance/5713876-ai-displacement-and-ubi/

#uspol #employment #economy #ai