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I wrote the other day about overcoming an issue with Shiny. Another issue I ran into concurrently was about file inputs. The issue was that file inputs (i.e., shiny::fileInput) was difficult to clear. That is, after a user uploads a file, it was easy to get some of the various parts cleared/cleaned up, but not others: (Not Easy) The UI components of fileInput (the text of the file name, the loading display) (Not Easy) The data behind the fileInput handler (Easy) Displaying some feedback in the UI after handling file input Load libraries ...

I’ve been working on Shiny app at work for the past few months. One of the many frustrating things about Shiny lately has been around buttons. Well, it wasn’t really about buttons, but that’s where it started. Load libraries library(shiny) library(bslib) library(crul) Helper function, returned a random UUID from an httpbin server httpbin_uuid <- function(...) { con <- crul::HttpClient$new("https://hb.opencpu.org") res <- con$get("uuid") jsonlite::fromJSON(res$parse("UTF-8"))$uuid } A bslib ui component ui <- page_sidebar( title = "My dashboard", sidebar = list( actionButton("submit", "Submit"), actionButton("reset", "Reset") ), textInput(inputId = "name", "Your name"), textOutput("uuid") ) Here’s the server part that was giving me trouble. As I said this was an inherited repo, and the server side handling for many buttons was done with eventReactive as below. Using eventReactive meant that button clicks only sometimes triggered the server side code. ...

I recently opened an issue in a repository for a package I’m working on to think about potential footguns and how to avoid them. That word “footguns” got me thinking; does using phrases/metaphors for a certain topic in a way lend credibility to it? For example, we use a lot of sports metaphors in the US, especially baseball (swing for the fences, anything related to bases, curveballs, heavy hitter, etc.), and that says something about the place of baseball in our culture. ...

My parents just found this email they had printed out from me from May 19, 2006, when I was 26. I chatted about some family stuff, then had this rambling string of weird thoughts below. I thought others might appreciate a good cringe - or cringy laugh - at my expense. It’s especially funny because I’m most def an atheist. I don’t know, those Tucson sunsets really are transformative. … Actually, some deep thoughts: ...

notes to self for next job hunt (some of which may be generally useful): don’t apply to general tech companies anymore for many reasons. heard back from very very few but that may be b/c I don’t know many people at general tech companies never been able to get through interviews; they’re presumably looking for computer science grads (not me) most of their missions are probably not stuff I’d be happy about at the end of the day. despite missions of doing xyz, it’s probably really about $$ don’t apply to pharma companies any more. there’s lots of good software jobs in that sector, but i’ve struck out 3 times, and so that’s a clear pattern my background/whatever isn’t something they want next time only apply where I have a connection that can refer me or dig around for a referral. it’s super easy to apply for jobs, especially if you don’t write a cover letter; however, the less time I spend surely the less likely I am to hear back make sure (and I’ll probably fail to do it again this time, ugh) to write down what questions I was asked, how I answered, and how to improve on that answer. then study and reference those questions and answers for the next interview its good to have multiple offers at the same time, but then deciding is harder - & I don’t love to negotiating - so maybe don’t worry about multiple offers at the same time next time around I have relatively low expectations in any interview b/c I don’t do technical interviews well - I also try to seek out orgs that do not have crazy technical interview processes - eg., Roche had a whiteboard technical interview that I totally bombed, but was unsurprising in hindsight since the interviewer was an ex-Googler. I’m more of a thinker than a quick responder, making it hard to do well in very fast paced (for me) tech interviews. Though I know i have been a good software engineer where I’ve worked, so these fast paced tech interviews are probably selecting for a certain kind of brain function I guess? seek out orgs with interview processes that have take home assignments - or at least timed coding tests on something like hackerrank - instead of live whiteboard/zoom tech inteviews my last job Deck had a take home test Axiom DS has a take home test approach AdHoc uses a take home test approach Invitae had a hackerrank test, not a take home but better than live coding test cover letters? I still don’t know whether these are worth doing or not. the advice seems to be mixed. they sure take a lot of time, so I hope they’re not necessary for most hiring managers; given my bullet above about spending more time on fewer applications, I could find time for a cover letter on every application if ther’s not that many some data about this last job search: ...

Soooo, my last job at Deck was amazing. I loved it. I was doing data engineer stuff there, mostly maintaining infrastructure for data pipelines. Everyone was great and the mission was amazing: helping Democrats win. Yet the company was shut down about a month ago, sending me on another job search, the 3rd since early/mid 2021. I’m super thrilled to have landed a job (Software and Reproducibility Software Developer) at the Fred Hutch Data Science Lab (DASL), headed up by Jeff Leek, working with Sean Kross, Amy Paguirigan, and Monica Gerber, among many other amazing folks. ...

I recently had a use case at work where I wanted to check that file paths given in a Python script actually existed. These paths were in various GitHub repositories, so all I had to do was pull out the paths and check if they exist on GitHub. There were a few catches though. First, I couldn’t simply get any string out of each Python script - they needed to be strings specficied by a specific function parameter, and match a regex (e.g., start with ‘abc’). ...

TL;DR In 6 months (end of November 2022) the CRAN Checks API https://cranchecks.info/ will be gone You can still get badges at https://badges.cranchecks.info You can use the new badges like: [](https://cran.r-project.org/web/checks/check_results_dplyr.html) Find more details at https://github.com/sckott/cchecksbadges Sunsetting the CRAN Checks API If you contribute an R package to CRAN, you may use badges from the CRAN checks API at https://cranchecks.info/. The CRAN Checks API has been operating since about September 2017 (I think). The API has a number of routes, but really people only use the badges. ...

I was working on a work task last week, and needed to filter out one instance of a class from a list of class instances. No matter how you do this speed doesn’t matter too much if you’re doing this operation once or a few times. However, I this operation needs to be done about 100K times each time the script runs - so speed definitely does matter in this case. ...