added distribution plots to shiny app
changed intra_pred
added groundwater data from Ohio EPA
renamed data
separated normality checks
fixed normality check
worked on intra_pred_int
intrawell prediction intervals fixed
document intrawell prediction intervals
changed intrawell prediction intervals in shiny
fixed intrawell prediction on shiny
changed prediction interval to output full data frame
fixed intrawell prediction exceedance column
fixed major ion input in piper diagrams
created pred_int and pred_int_sim
simultaneous and Bonferroni method working
added limit time series plots to shiny
added regular prediction interval to shiny
Merge branch 'dev'