To emphasize value differences in a bar chart, using gradient colors is a nice option. ggplot makes it easy with scale_fill_gradient2().
Today I completed the Udacity Deep Learning Nanodegree (DLND) program. The program included submitting 5 projects for review, which is the best part because we get our hands dirty. AWS (Amazon Web Services) was introduced, and we got to use AWS SageMaker for free (with Education ‘credit’). All-in-all I feel like I’ve been introduced to … [Read More]
Writing data to a file using write.csv failes to retain column data types. A better way to save/restore data objects to/from files is by using RDS and RData.
Instead of a cumbersomely nested ifelse statement, use dplyr’s mutate and case_when functions instead.
Convert data.frame factor columns to character columns before trying to replace NULL values.
Find NULLs in a dataframe using is.na().