sixty two-minute r twotorials now available

sixty twotorials now posted. two minutes each.

new video highlights:

• 024 how to run counts, tables, crosstabs, and flat tables on a data frame in r 
• 030 what is a function anyway and how does it input and output stuff in r 
• 022 how to generate basic descriptive statistics - means, medians, sums, quantiles - on data tables in r
• 051 how to read and write excel files with the xlsx package in r 
• 038 how to graph simple plots and make scatterplots in r 
• 047 how many different ways can you slice and dice (subset) a data table in r?

purpose.of.twotorials.com <-
  ifelse(
    you are not yet fluent in the r language ,
    help you learn more ,
    provide quicklinks to answer colleagues' r questions )

here's a video that no one who has ever seriously used r would need - but might find useful to send along with syntax that a newbie needs to run for some reason:

• 041 did someone send you a script file or computer code for the r programming language? here's how to run it!

i appreciate your feedback.  if you have an idea for a twotorial, i'd love to hear it.  i'd also be excited about guest twotorials.

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