ellisp

library(extrafont)
library(tidyverse)
library(scales)


myfont <- "Roboto"
main_font <- "Roboto"
heading_font <- "Sarala"

ellisp

dualplot <- function(x1, y1, y2, x2 = x1, 
                     col = c("#C54E6D", "#009380"),
                     lwd = c(1, 1), colgrid = NULL,
                     mar = c(3, 6, 3, 6) + 0.1, 
                     ylab1 = paste(substitute(y1), collapse = ""), 
                     ylab2 = paste(substitute(y2), collapse = ""),
                     nxbreaks = 5, 
                     yleg1 = paste(gsub("\n$", "", ylab1), "(left axis)"), 
                     yleg2 = paste(ylab2, "(right axis)"),
                     ylim1 = NULL, ylim2 = NULL, ylim.ref = NULL,

ellisp

#---------------Index and Index12---------------

Index <- function(x, ref=x[1]){
  # Function that takes a vector or time series (or any object actually) 
  # and returns it as an index based on 100.  Defaults to using the 
  # first value of the vector as reference value, but this can be overridden.
  
  if(length(ref)>1) stop("Reference value must be a single number")
  x*100/ref
  

ellisp

#----AskCreds - so RStudio can access ODBC-------------------

AskCreds <- function(Title="User credentials for a database", startuid="", returnValOnCancel = "ID_CANCEL") {
  # Peter Ellis, 12 August 2013
  # A wrapper function to provide a GUI to ask a user for user id and password so they
  # can be given to a database in a future call of connectODBC()
  # Based on http://www.sciviews.org/_rgui/tcltk/ModalDialog.html
  require(tcltk)
  dlg <- tktoplevel()
  tkwm.deiconify(dlg)