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#Using R to make a Grid of Glyphs

# set of variables to use

vars=c("Size","Price","Installs")



# rank() gives the ordering in ascending order and breaks ties randomly

order=rank(G$Rating, ties.method="random")

palette(topo.colors(length(vars) ) )

# length( ) tells you how many items there are in vars (the set of    variables)

# draw a grid of segment glyphs with a key at (0,0)

# len gives glyph size, variables are scaled by column, no labels

stars(G[order,vars], len=1.2, scale=TRUE, labels=NULL,key.loc=c(0,0), draw.segments=TRUE, main="Ordered by Rating")

Error in `[.data.table`(G, order, vars) : 

j (the 2nd argument inside [...]) is a single symbol but column   name 'vars'   is not found. Perhaps you intended DT[, ..vars]. This difference   to data.frame is deliberate and explained in FAQ 1.1.

#Using R to make a Grid of Glyphs

# set of variables to use

vars=c("Size","Price","Installs")



# rank() gives the ordering in ascending order and breaks ties randomly

order=rank(G$Rating, ties.method="random")

palette(topo.colors(length(vars) ) )

# length( ) tells you how many items there are in vars (the set of    variables)

# draw a grid of segment glyphs with a key at (0,0)

# len gives glyph size, variables are scaled by column, no labels

stars(G[order,vars], len=1.2, scale=TRUE, labels=NULL,key.loc=c(0,0), draw.segments=TRUE, main="Ordered by Rating")

Error in `[.data.table`(G, order, vars) : 

j (the 2nd argument inside [...]) is a single symbol but column   name 'vars'   is not found. Perhaps you intended DT[, ..vars]. This difference   to data.frame is deliberate and explained in FAQ 1.1.

#Using R to make a Grid of Glyphs

# set of variables to use

vars=c("Size","Price","Installs")



# rank() gives the ordering in ascending order and breaks ties randomly

order=rank(G$Rating, ties.method="random")

palette(topo.colors(length(vars) ) )

# length( ) tells you how many items there are in vars (the set of    variables)

# draw a grid of segment glyphs with a key at (0,0)

# len gives glyph size, variables are scaled by column, no labels

stars(G[order,vars], len=1.2, scale=TRUE, labels=NULL,key.loc=c(0,0), draw.segments=TRUE, main="Ordered by Rating")

Error in `[.data.table`(G, order, vars) : 

j (the 2nd argument inside [...]) is a single symbol but column   name 'vars'   is not found. Perhaps you intended DT[, ..vars]. This difference   to data.frame is deliberate and explained in FAQ 1.1.

#Using R to make a Grid of Glyphs

# set of variables to use

vars=c("Size","Price","Installs")



# rank() gives the ordering in ascending order and breaks ties randomly

order=rank(G$Rating, ties.method="random")

palette(topo.colors(length(vars) ) )

# length( ) tells you how many items there are in vars (the set of    variables)

# draw a grid of segment glyphs with a key at (0,0)

# len gives glyph size, variables are scaled by column, no labels

stars(G[order,vars], len=1.2, scale=TRUE, labels=NULL,key.loc=c(0,0), draw.segments=TRUE, main="Ordered by Rating")

Error in `[.data.table`(G, order, vars) : 

j (the 2nd argument inside [...]) is a single symbol but column   name 'vars'   is not found. Perhaps you intended DT[, ..vars]. This difference   to data.frame is deliberate and explained in FAQ 1.1.

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