Tidyverse in R - tips & tricks

[@tomhenry-datasciencewithr6047]

▶️ Top 7 R packages that are less well known - kzbin.info/www/bejne/jF6opKaGp6yDfsk 🎉 *Subscribe* if you want more videos like this! - kzbin.info/door/b5aI-GwJm3ZxlwtCsLu78Q 😃 *Comment* below to share which tricks you liked the most!!

[@s-sugoi835]

Thanks, I work in a bank we migrated from SAS to R. This is so helpful.

[@tjaeg]

Please keep on doing these kind of videos!

[@spikeydude114]

Great video! Very dense with information and straight to the point!

[@DM-py7pj]

2:06 what purpose does ungroup() serve in this case?

[@tomhenry-datasciencewithr6047]

Technically it's not necessary! But I have gotten into the habit of 'ungroup()'ing every time after a group_by() because in other contexts - e.g. when the pipe continues with further mutates, summarizes, etc. - forgetting to ungroup() can result in the wrong outcomes. That's because summarize() by default only peels off the last variable in the group_by(). So I have developed the habit of always ungroup()ing after a group_by(), even when it's not necessary!

[@DM-py7pj]

@@tomhenry-datasciencewithr6047 Thanks. Great explanations. Subscribed. :-)

[@djangoworldwide7925]

Super informative and advanced! Thank you. It's hard to find these days advanced tutorials on youtube

[@dataslice]

Great tips, Tom! I'm definitely saving this video!

[@tomhenry-datasciencewithr6047]

Awesome! Thank you!

[@bridgettsmith7206]

Great tips. I appreciate that you have an index of time stamps for the content. I will be more easily able to reference this video later.

[@ZuluMonk]

Great tips! Always nice to see better ways of doing things.

[@tomhenry-datasciencewithr6047]

Glad you enjoyed it!

[@aliramadan7425]

Thank you. Learned so much!

[@tomhenry-datasciencewithr6047]

Glad it was helpful!

[@Wherearethewildthings]

Fantastic, Tom! Just subscribed, so helpful

[@tomhenry-datasciencewithr6047]

Glad you found it helpful!

This is great, so useful. Thanks!

[@manohar-kg]

Very helpful video... Thanks

[@tomhenry-datasciencewithr6047]

Most welcome :)

[@MarcelloNesca]

Great tips! Always looking for new ways of coding for datasets. Subscribed!

[@tomhenry-datasciencewithr6047]

More to come!

[@nuk3man]

Great video. Question; in tip nr. 9, what does "\\.?$" do in the first str_replace_all?

[@tomhenry-datasciencewithr6047]

Good question! It's a regular expression, and its purpose is to remove an optional '.' at the end of the string of text. For example, ' INC.' or ' CO.' or ' INC' or ' CO' would all be matched and replaced with the empty string (i.e. removed from the text). So 'QUANTAS CO.' (hypothetical) and 'QUANTAS CO' would both become 'QUANTAS' We can break down the "\\.?$" like this: \\. translates into \. - this says to match an actual '.' character. If we didn't have the '\\', it would match _any_ character because '.' is the regular expression code for any character. ? means 'optional' - so the actual '.' may or may not be present - if it is present, it will be matched. $ means the 'end of the string of text'. So putting it together, this means: 'Replace ' ' # a space followed by 'INC' or 'CO' # (INC|CO) followed by an optional '.' # \\.? if all at the end of the string # $ with the empty string # "" ' More info on regular expressions here: r4ds.had.co.nz/strings.html#matching-patterns-with-regular-expressions

[@tpflowspecialist]

Fantastic tydiverse data processing tips. Thank you!

[@ecarlosbc]

Great tutorial Sir.!!!!!!!

[@timmytesla9655]

This is awesome. Thank you!

[@shreyaroraa2234]

Very Nice video TOM. Future video idea - Moving from Sql to R common issues and functions comparisons

[@QuentinAndres06]

Tom, you are a boss.

[@patricklogan6089]

Good stuff

[@ahmed007Jaber]

wow! mate love this one. keep it up for tip #18 how would you exclude some columns from this? i actually need to do a similar function to this

[@djangoworldwide7925]

Just pick other columns

[@clono1984]

Hi Tom, do you have the script available for download anywhere? Would love to revisit a few of the tips here. Really like your work. Thanks for sharing! -- Juan

[@tomhenry-datasciencewithr6047]

Sure! I've put a link at the end of the description. Here it is: gist.github.com/larsentom/727da01476ad1fe5c066a53cc784417b

[@clono1984]

@@tomhenry-datasciencewithr6047 ahh! can't believe I missed it. Thank you Tom.

[@tomhenry-datasciencewithr6047]

@@clono1984 Glad you liked the tips! Let me know if you have others to share too!

[@melissawong4125]

Thanks. Great tips! The github link is no longer working. Is there a new link?

[@alihashemian225]

I am having trouble accessing the script. Can someone help me?

[@heartheart5543]

link for the code cannot be accesed: 404

[@jaritos675]

light RStudio theme not acceptable

[@tomhenry-datasciencewithr6047]

Haha! What's your favorite RStudio theme?

[@jaritos675]

@@tomhenry-datasciencewithr6047 cobalt

[@tomhenry-datasciencewithr6047]

Nice -- Cobalt is probably my favorite RStudio theme too!

[@SuperKrazy2000]

Team Light Theme!

[@AkashMathur-yc9nu]

Power Pack !

[@educationulx]

My data(csv) is about historial heights between both genders of different ages . Here , my data contains heights of every years (1986-2019) & Age group > 2 , 8 , 16 , 19 , 22 . Also Male , Female sex . But I just want to select / work with only age 19 (gender male/both) to see their heights between 1986-2019 . How can I do it ? plz let me know .

[@tomhenry-datasciencewithr6047]

You can work with something like this: heights %>% filter(year %>% between(1986, 2019)) %>% # year >= 1986, year = 1986 & year % # change to just 'age_group == 19' or 'age_group %in% c(19)' if you want ggplot(aes(year, height, color = sex)) + geom_line() + facet_wrap(~age_group, ncol = 1) this assumes your data looks like this: year | age_group | sex | height 2015 | 16 | Female | 150 etc

[@tomhenry-datasciencewithr6047]

Then try removing / changing parts of this to see the effects!

[@nkuatedivinely7369]

I just started watching some few videos for school purposes, they are great, but u are so fast😅, it will be a great thing if u could speak a little slowly and even repeat some few things, thanks

[@Jelieto]

you sound like daniel ricciardo

[@Realtalkvideogames]

FLIGHTS DOESNT WORK WITH NEW r