By definition a streamgraph has rounded angles, giving a nice feeling of flow. It is possible to change this shape using an option of the streamgraph package.
By definition a streamgraph displays rounded shapes like on the left chart above. It gives a nice impression of flow and is well known for it.
The streamgraph
package also allows to
interpolate
data points differently. Use
linear
to get something close to a stacked area graph. Use
step
to mimick a stacked barplot.
Note: you can save the chart as a html file using the
saveWidget()
function of the
htmlwidgets
package, as suggested in the commented code
below.
# Library
library(streamgraph)
# Create data:
data <- data.frame(
year=rep(seq(1990,2016) , each=10),
name=rep(letters[1:10] , 27),
value=sample( seq(0,1,0.0001) , 270)
)
# Shape: classic
p1 <- streamgraph(data, key="name", value="value", date="year",
width="400px", height="300px"
)
# Shape: stacked area graph
p2 <- streamgraph(data, key="name", value="value", date="year" ,interpolate="linear" ,
width="400px", height="300px"
)
# Shape: stacked barplot
p3 <- streamgraph(data, key="name", value="value", date="year" ,interpolate="step" ,
width="400px", height="300px"
)
# save the widget
# library(htmlwidgets)
# saveWidget(p1, file=paste0( getwd(), "/HtmlWidget/streamgraphShape1.html"))
# saveWidget(p2, file=paste0( getwd(), "/HtmlWidget/streamgraphShape2.html"))
# saveWidget(p3, file=paste0( getwd(), "/HtmlWidget/streamgraphShape3.html"))