gridextra

I am attempting to align the left and right edges of 4 ggplot choropleth maps using this method . I am unable to do this though. Original plot: library(ggplot2); library(gridExtra) crimes <- data.frame(state = tolower(rownames(USArrests)), USArrests) states_map <- map_data("state") plot1 <- ggplot(crimes, aes(map_id = state)) + geom_map(aes(fill = Murder), map = states_map) + expand_limits(x = states_map$long, y = states_map$lat) + scale_fill_gradient(low="white", high="darkgreen", name="Really Long Name 1") plot2 <- plot1 + scale_fill_gradient(name="Really Long Name 2 and then some") plot3 <-

I'd like to arrange my ggpairs plots with arrangeGrob : library(GGally) library(gridExtra) df <- structure(list(var1 = 1:5, var2 = 4:8, var3 = 6:10), .Names = c("var1", "var2", "var3"), row.names = c(NA, -5L), class = "data.frame") p1 <- ggpairs(df, 1:3) p2 <- ggpairs(df, 1:2) p <- arrangeGrob(p1, p2, ncol=2) which results in this error: Error in arrangeGrob(p1, p2, ncol = 2) : input must be grobs! Is there a way to work around this problem? tonytonov Unfortunately, I cannot see how that is possible. First, it's not going to work with gridExtra , since arrangeGrob operates on TableGrob objects

I'm trying to output a dataframe of about 40 rows and 5 columns to a .pdf file using grid.table in gridExtra package of R. However, 40 rows is too long for a page so the .pdf file only shows part of the dataframe. I want to know if I can print two columns on one page so all of the rows show up on one page. Alternatively, I need to know how to print the dataframe over multiple pages. Thanks, John I'd suggest the following strategy: create the tableGrob, query its heights, split the rows to fit each page, library(gridExtra) library(grid) d <- iris[sample(nrow(iris), 187, TRUE),] tg <- tableGrob

I have some table grobs, some long and some short. I'd like to draw these at the top/center of the page (with a small margin). From this answer , I got a helpful starting point, but the positioning is dependent on each grob's height. library(gridExtra) # fake data my_df <- data.frame(col1=rep('hello', 35), col2=round(rnorm(35), 3)) # list of grobs tg <- list(tableGrob(my_df[1:30, ]), tableGrob(my_df[31:35, ])) # this positions grobs at center top, but varies based on rows in table tg[[1]]$vp <- viewport(x = 0.5, y = unit(1,"npc") - 0.52 * grobHeight(tg[[1]])) tg[[2]]$vp <- viewport(x = 0.5, y

I asked a question HERE about grid arrange and got a terrific response. I want to reduce the space between plots now but get an error. First I present the code that works and then the error code (what I tried). I can't actually find grid.arrange and have always assumed it comes from gridExtra but I may be incorrect. so 2 parts: How can I reduce space between plots with grid arrange Where can I find documentation about grid.arrange (Baptiste I know you maintain gridExtra so please correct my thinking or use of the package if I'm not using it in the way it was intended.) Good code bad space

I have a question regarding tableGrob/grid.table from the gridExtra package. Using the regular parameter settings, it is straightforward to colour alternate rows. However, I was hoping that it might be feasible to get a bit more control over the colouring of the rows. For example, is it possible to colour every third row in a different colour? I suspect the grid.edit function is one way to approach this, judging by the example in this link: http://code.google.com/p/gridextra/wiki/tableGrob but I can't figure out how to apply that to my question. I believe the person who posted this question

Is there a way to individually change the color of the text of a cell when using tableGrob and ggplot2? For instance in the code below it'd be great if the cell with 1 could be blue and the cell with 2 could be red, with 3:8 all black. library(ggplot2) library(grid) mytable = as.table(matrix(c("1","2","3","4","5","6","7","8"),ncol=2,byrow=TRUE)) mytable = tableGrob(mytable,gpar.coretext = gpar(col = "black", cex = 1)) mydf = data.frame(x = 1:10,y = 1:10) ggplot( mydf, aes(x, y)) + annotation_custom(mytable) Much to my disappointment, this does not seem to be easy. The tableGrob function calls