3.2 Meeting Videos

3.2.1 Cohort 1

Meeting chat log
00:11:35    Ben G:  Anyone know how to re-size an image for a Markdown slides presentation
00:19:03    Federica Gazzelloni:    ops sorry just seen it
00:20:15    Federica Gazzelloni:    anyway you can resize it using fig.dim=“some percentage” in the chunk
00:30:51    Ricardo Serrano:    Cohen's Kappa metric https://thedatascientist.com/performance-measures-cohens-kappa-statistic/
00:33:22    Federica Gazzelloni:    thanks @ricardo
00:37:32    Ricardo Serrano:    H2O Metrics Masterclass https://youtu.be/0bZeTUOPDTQ
00:37:47    Federica Gazzelloni:    {r pressure, echo=FALSE, fig.dim="50%"}
plot(pressure)
00:40:31    Jim Gruman: roll_rs <- sliding_period(
  train_df,
  date,
  period = "month",
  every = 6L,
  lookback = Inf,
  skip = 2L
)

roll_rs |> 
  tidy() |> 
  ggplot(aes(x = Resample, 
             y = Row, 
             fill = Data)) +
  geom_tile() +
  scale_fill_viridis_d() +
  theme_bw()
00:46:17    ethan tenison:  In the book it recommends doing 10-fold cross validation  plus 5 iterations for small datasets. Would bootstrapping still be better?
01:05:34    Jim Gruman: thank you Ben!     I'm going to have to step away. See you all next week