WaltS questions

WaltS answers

• purrr map a t.test onto a split df
• Plot graphs in R by loop and save it like jpeg
• R function solve.QP error "constraints are inconsistent, no solution!"
• Faceted horizontal divergent stacked bar plot including negative values using dplyr and ggplot
• How to import fundamentals for stocks by using Quandl package
• Rainfall intensity from a tipping bucket
• ggplot2 legend with only one category / with only the shape and no scale
• How to get list name and slice name with pipe and purrr
• Perform an operation on a vector using the previous value after an initial value
• Dynamic ylim in ggplot2 using dplyr pipe