ggplot2 - can we arrange grid.draw output into a single plot in R -

is there method can arrange multiple grid.draw output single plot.

i have multiple grid.draw outputs shown below.

g <- ggplotgrob(p1) g <- gtable_add_grob(g, rastergrob(img,width=unit(3,"cm"),x =                           unit(49,"cm")),t=2.5,l=1,b=1,r=5,z=inf)      grid.newpage()      grid.draw(g)   g1 <- ggplotgrob(p2) g1 <- gtable_add_grob(g1, rastergrob(img,width=unit(3,"cm"),x =                           unit(49,"cm")),t=2.5,l=1,b=1,r=5,z=inf)      grid.newpage()      grid.draw(g1)   g2 <- ggplotgrob(p2) g2 <- gtable_add_grob(g2, rastergrob(img,width=unit(3,"cm"),x =                           unit(49,"cm")),t=2.5,l=1,b=1,r=5,z=inf)      grid.newpage()      grid.draw(g2)   g3 <- ggplotgrob(p3) g3 <- gtable_add_grob(g3, rastergrob(img,width=unit(3,"cm"),x =                           unit(49,"cm")),t=2.5,l=1,b=1,r=5,z=inf)      grid.newpage()      grid.draw(g3) 

i tried grid.arrange got error saying object g1 not found.

i used below code.

grid.arrange(grid.draw(g1),grid.draw(g2),grid.draw(g3),ncol=2)