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Separating text printed from value used to color the areas #6

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24e6646
Added parameter color.col
picarus May 17, 2015
8ca028e
added doc for new parameter
picarus May 17, 2015
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5 changes: 4 additions & 1 deletion R/timeline.R
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
#' @param df data for time periods.
#' @param events data for events (optional).
#' @param label.col the column name in \code{df} to use for labeling.
#' @param color.col the column name in \code{df} to use for coloring.
#' @param group.col the column name in \code{df} to use for grouping.
#' @param start.col the column name in \code{df} that specifies the start date.
#' @param end.col the column name in \code{df} that specifies the end date.
Expand Down Expand Up @@ -57,6 +58,7 @@
#' timeline(ww2, ww2.events, event.spots=2, event.label='', event.above=FALSE)
timeline <- function(df, events,
label.col = names(df)[1],
color.col = names(df)[1],
group.col = names(df)[2],
start.col = names(df)[3],
end.col = names(df)[4],
Expand Down Expand Up @@ -187,10 +189,11 @@ timeline <- function(df, events,

p <- p +
geom_rect(data=df, aes_string(xmin=start.col, xmax=end.col,
ymin='ymin', ymax='ymax', fill=label.col), alpha=.9,
ymin='ymin', ymax='ymax', fill=color.col), alpha=.9,
color=border.color, linetype=border.linetype) +
geom_text(data=df, aes_string(y='labelpos', x='labelpos.x', label=label.col),
hjust=text.hjust,
angle= text.angle,
size=text.size,
color=text.color,
alpha=text.alpha,
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15 changes: 15 additions & 0 deletions demo/ww2.R
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Expand Up @@ -19,3 +19,18 @@ timeline(ww2, event.spots=2, event.label='', event.above=FALSE)
#Modify the ggplot2 express after returing
timeline(ww2, ww2.events, text.position='center', text.angle=45) +
theme(axis.text.y=element_text(angle=90, hjust=.5))

# Flips coordinates and prints Text instead of Person
timeline(ww2, #ww2.events,
color.col = "Person",
label.col = "Text",
text.position = "center",
text.size = 4,
text.angle = 0,
num.label.steps = 3,
event.spots = 4,
event.label.method = 1,
event.text.size = 4,
event.label = '',
event.line = TRUE,
event.above = TRUE) + coord_flip()
3 changes: 3 additions & 0 deletions timeline.dev.r
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Expand Up @@ -53,6 +53,9 @@ ww2 <- as.data.frame(matrix(c(
names(ww2) <- c('Person','Group','StartDate','EndDate')
ww2$StartDate <- as.Date(ww2$StartDate)
ww2$EndDate <- as.Date(ww2$EndDate)
ww2$Text<-paste(gsub("[\\\n]"," ",ww2$Person),'\n',ww2$StartDate,'to',ww2$EndDate)
# will generate string such as 'Franklin D. Roosevelt\n1933-03-04 to 1945-04-12'
# does not always prints nice

ww2.events <- as.data.frame(matrix(c(
'Japan Invades Manchuria','1931-09-18','Axis',
Expand Down