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POorganize text on geom_point using geom_text
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10476630
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2012-05-07T04:26:33.967
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I have a line plot with some time points that are hard to distinguish by the coloring alone and I would therefore like to label the time points on the plot, but the labels overlap (see plot below) in a way where it is hard to read the labels. The plot currently look like this, <img src="https://i.stack.imgur.com/2bsBm.png" alt="current plot"> I wonder if there is a way to 'stack' the labels or some way (script) that can ensure they do not overlap. Something like this, <img src="https://i.stack.imgur.com/cmGOX.png" alt=" - - > "> Any help would be appreciated. Here is the code I used to produce the plot, <pre><code> require(ggplot2) require(plyr) require(reshape) # create sample data set.seed(666) dfn <- data.frame( Referral = seq(as.Date("2007-01-15"), len= 26, by="23 day"), VISIT01 = seq(as.Date("2008-06-15"), len= 24, by="15 day")[sample(30, 26)], VISIT02 = seq(as.Date("2008-12-15"), len= 24, by="15 day")[sample(30, 26)], VISIT03 = seq(as.Date("2009-01-01"), len= 24, by="15 day")[sample(30, 26)], VISIT04 = seq(as.Date("2009-03-30"), len= 24, by="60 day")[sample(30, 26)], VISIT05 = seq(as.Date("2010-11-30"), len= 24, by="6 day")[sample(30, 26)], VISIT06 = seq(as.Date("2011-01-30"), len= 24, by="6 day")[sample(30, 26)], Discharge = seq(as.Date("2012-03-30"), len= 24, by="30 day")[sample(30, 26)], Patient = factor(1:26, labels = LETTERS), openCase = rep(0:1, 100)[sample(100, 26)]) # set today's data for cases that do not have an Discharge date dfn$Discharge[ is.na(dfn$Discharge) ] <- as.Date("2014-01-30") mdfn <- melt(dfn, id=c('Patient', 'openCase'), variable_name = "Visit") names(mdfn)[4] <- 'Year' # rename # order data in mdfn by 'Referral' in dfn mdfn$Patient <- factor(mdfn$Patient,levels = (dfn$Patient[order(dfn$Referral)]),ordered = TRUE) # subset a dataset to avoid 'Discharge' for cases that are not closed mdfn2 <- subset(mdfn,!(Visit=="Discharge" & Year > as.Date("2014-01-01"))) # the plot as it looks now ggplot(mdfn, aes(Year, Patient)) + geom_blank() + geom_line(data = mdfn[mdfn$openCase == 0,], colour = "black") + geom_line(data = mdfn[mdfn$openCase == 1,], colour = "grey") + geom_point(data = mdfn2, aes(colour = Visit), size = 4, shape = 124) + geom_text(data=mdfn2, mapping=aes(x=Year, y=Patient, label=substr(Visit, 1, 7), colour=Visit), size=2, vjust=-.4, hjust=-.1, angle = 00) </code></pre>
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organize text on geom_point using geom_text
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