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Sonos - Add Songs to Queue

The Sonos controller app had a weird issue: it stopped playing internet radio or any songs from Spotify. The app was on a Windows 10 OS. It produced an error message “Unable to add song to queue”, sometimes it showed with an error code 1002 but most of the time it didn’t. This seemingly happened out of the blues several months’ ago as the system had previously been working perfectly. The problem was, however, confined to playing online sources; playing local sources on the computer was unaffected.
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R Objects

R operates on objects.1 A collection of objects makes up a workspace. Vectors2 vectors numeric vectors x <- c(10:15) x ## [1] 10 11 12 13 14 15 - charactor vectors y <- c(letters[1:5]) y ## [1] "a" "b" "c" "d" "e" missing values logical z <- x >= 14 z ## [1] FALSE FALSE FALSE FALSE TRUE TRUE z1 <- x[z==0] z1 ## [1] 10 11 12 13 - factor is a vector.
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Notes about Notes

Had some lecture notes for quantitative analysis from college years. As a little exercise, I converted them to markdown so that they could be posted here. The notes were taken using Words and the analysis was carried out using SPSS. Pandoc does a decent job in converting .docx to .md pandoc -s input_file.docx -t markdown -o output_file.md The resulting html, after processing through Blogdown, was almost error free. I was a bit picky about the layout of tables and used knitr::kable and kableExtra to reproduce them.
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QA Practical

Review Notes– QA Practical Chapter 2 & 3 – Data Files Screen data using Analyze -> Descriptive -> Frequencies Assess “Normality” – observe plot or calculate Kolmogorov-Smirnov or Shapiro-Wilks (use when sample size < 100). Analyze -> Descriptive ->Explore “age” Table 1: Normality Test Kolmogorov-Smirnov² Shapiro-Wilk Statistic df Sig.
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