Play by play: Adding RSVP Tracking to RLadies meetupr package (A Github Experience)

In the spirit of Mara Averick’s (keynoting March 10, 2018 in Durham, NC!) “contributing to the tidyverse” presentation at rstudio::conf 2018 (PDF slides here). This is a play-by-play of my work to update another’s R package that hopefully will stimulate others to get involved in the open-source community and teach an important lesson by example. […]

Meetup.com “YES” RSVP graphing (fun with httr package and RLadies meetupr)

Attending data science networking / training events consistently triggers me to learn stuff I otherwise would not have, regardless of what material is available online. The following use of R (#rstats) to download¬†“YES” RSVPs¬† for the past four years’ Analytics Forward was greatly inspired by hearing RTP actuarial expert, Brian Fannin, present “Go Ape for […]

Variability of categorical variables using R (ragree::unalike)

[2018-02-13 Update: Github user raredd kindly responded and now I am going to use ragree::unalike because he/she showed that the function produced the same results for examples in the Kader and Perry paper referenced below, unlike RcmdrPlugin.ISCSS::unalike. As raredd also expressed, there is no indicated academic basis for RcmdrPlugin.ISCSS::unalike. raredd found and fixed a bug […]

Eliminating non-numeric characters from a value in Excel, SAS, and #rstats [R]

I often use Excel along with R. I sometimes receive identifier numbers with non-numeric characters such as hyphens (e.g., 3232-485-930). For joining purposes, I prefer to strip out the non-numeric values. In Excel, this handy formula works (change the L3 reference to that of your source cell). =SUMPRODUCT(MID(0&L3,LARGE(INDEX(ISNUMBER(–MID(L3,ROW($1:$25),1))* ROW($1:$25),0),ROW($1:$25))+1,1)*10^ROW($1:$25)/10) [CREDIT: Richard Schollar in the MrExcel […]