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The repositioning position of graphic elements is often involved in the geom () function (geometric object) of ggplot2. Different parameter adjustments can make the image show different effects. The main relocation involves the following ways:

Position describes dodge to avoid overlap, fill stacking graphic elements side by side and height standard 1identity without any adjustment jitter adding disturbance to points to avoid coincidence stack stacking graphic elements

Here is a brief demonstration of fill type relocation based on the same data.

> dat type Sample Num1 A sample1 902B sample1 343C sample1 564D sample1 995E sample1 156A sample2 507B sample2 208C sample2 249D sample2 7010 E sample2 14

Drawing

> datp = ggplot (dat, aes (x = type,y = Num,fill = Sample) + geom_bar (stat = "identity", width = 0.6 position = "fill") + scale_fill_manual (values = c ("red", "blue") + labs (x = "", y = ", title =" test ") + geom_text (label = dat$Num), position=position_fill (vjust = 0.5) Size = 5) + guides (fill = guide_legend (reverse = F)) + theme (plot.title = element_text (size = 25 bold = "bold", vjust = 0.5, hjust = 0.5), legend.title = element_blank (), legend.text = element_text (size = 18, face = "bold"), legend.position = 'right' Legend.key.size=unit (0.8 camera cm') print (p)

With the same code and different position, we can see the obvious difference among dodge, stack and fill.

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