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#' @title Create a chart of the Base Interest Rate (SELIC) time series
#'
#' @description Creates a plot of series 4189
#'
#' @return An image file is saved in the 'graphs' folder, under the BETS installation directory.
#' @importFrom zoo as.Date
#' @importFrom grDevices rgb
#' @import plotly
#' @author Talitha Speranza \email{talitha.speranza@fgv.br}
draw.misery_index = function(){
ipca = suppressWarnings(BETSget(13522))
#ipca = ts(ipca[,"value"], start = c(1980,12), frequency = 12)
ipca = window(ipca, start = c(2012,3))
unemp = BETSget(24369)
misery = ipca + unemp
# Consumer Confidence
file = file.path(system.file(package="BETS"), "/sondagens_completo_fgv.csv")
sond = read.csv2(file, stringsAsFactors = F)
sond[,-1] = data.frame(lapply(sond[,-1], function(x){as.numeric(gsub(",",".",x))}))
cons = window(ts(sond[115:nrow(sond),17],start = c(2010,7),frequency = 12),start = c(2012,3))
a <- list(
x = as.Date(misery)[length(misery)],
y = misery[length(misery)],
text = paste0("<b>",misery[length(misery)],"</b>"),
xref = "x",
yref = "y",
showarrow = TRUE,
arrowhead = 6,
ay = -40,
ax = 0,
font = list(size = 22)
)
b <- list(
x = as.Date(cons)[length(cons)],
y = cons[length(cons)],
text = paste0("<b>",cons[length(cons)],"</b>"),
xref = "x",
yref = "y2",
showarrow = TRUE,
arrowhead = 6,
ay = 40,
ax = 0,
font = list(size = 22)
)
t <- list(
x = 0.5,
y = 1.18,
text = "<b>MISERY INDEX x CONSUMER CONFIDENCE</b>",
xref = "paper",
yref = "paper",
showarrow = F,
font = list(size = 19)
)
ay <- list(
overlaying = "y",
side = "right",
zeroline = FALSE,
showgrid = FALSE,
tickfont = list(size = 22)
)
m <- list(
t = 100,
pad = 1,
r = 60
)
rg = rgb(162,7,7, maxColorValue = 255)
p = plot_ly(width = 700, height = 450) %>%
add_lines(x = as.Date(misery), y = misery, name = "Misery Index") %>%
add_lines(yaxis = "y2", x = as.Date(cons), y = cons, name = "Consumer Confidence") %>%
layout(title = "",
yaxis = list(tickfont = list(size = 22)),
yaxis2 = ay,
xaxis = list(title = "", tickfont = list(size = 22)),
margin = m,
annotations = list(t,a,b),
legend = list(orientation = 'h', x = 0.17, y = -0.33),
shapes = list(
list(type = "rect",
fillcolor = rg, line = list(color = rg), opacity = 0.2,
x0 = "2014-07-01", x1 = as.Date(misery)[length(misery)], xref = "x",
y0 = 10, y1 = 22, yref = "y")
)
)
return(p)
}
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