search for: aes_string

Hello Again R Folk: I have found items about this in the archives, but I?m still not getting it right. I want to use ggplot2 with facet_grid inside a function with user specified variables, for instance: p <- ggplot(data, aes_string(x = fac1, y = res)) + facet_grid(. ~ fac2) Where data, fac1, fac2 and res are arguments to the function. I have tried p <- ggplot(data, aes_string(x = fac1, y = res)) + facet_grid(. ~ as.name(fac2)) and p <- ggplot(data, aes_string(x = fac1, y = res)) + facet_grid(?. ~ fac2?) B...

...o I plot within a function where I can feed the function a data.frame and the columns I want plotted? I assume this is some interesting name space issue but if you guys can enlighten me as to what's going on... Thanks, Justin P.S. So before I sent this I dug some more and found my answer, aes_string: plot.func<-function(dff,x.var,y.var){ print(ggplot() + geom_point(data=dff,aes_string(x=x.var,y=y.var))) } plot.func(df,'x','y') works great. But I still wouldn't mind some clarification on what's happening in my earlier examples. [[alternative HTML version del...

...calculate the range to extend the axis dataVector <- unlist(dataSet[,"MPG.city"]) dataRange <- max(dataVector) - min(dataVector) graphRange <- c(min(dataVector) - dataRange/5, max(dataVector) + dataRange/5) #making the box plot theBoxPlot <- ggplot(dataSet,aes_string(x = "MPG.city",y = "MPG.city")) theBoxPlot = theBoxPlot + geom_boxplot() + expand_limits(y= graphRange) + coord_flip() print(theBoxPlot) #making the histogram thePlot <- ggplot(dataSet,aes_string(x = "MPG.city")) thePlot <-thePlot + geom_histogram() + expand...

Hi everyone, Hi ggplot users in particular, ggplot makes it very easy to plot things given their names when you use it interactively (and therefore can provide the names of the columns). qplot(x,foo,data=A) where A has columns (x,y,foo,bar) for example but I would like to use this from inside a function to which the name of the column is given. I cannot find an elegant way to make this

...lt;-data.frame(x=rep((1:4),4), y=rep(0.1*(1:4),4), group=sample(factor(rep(1:4,rep(4,4)), labels=c('Class1', 'Class2', 'Class3', 'Class4')))) plotdata2 <- plotdata2[order(plotdata2[,'group']),] plot0<-ggplot() layer1<-layer(data=plotdata2, mapping=aes_string(x='x',y='y'),geom='point', stat='identity') scaleY<-scale_y_continuous() scaleX <- scale_x_continuous() Facets<-facet_grid(group ~ .) plot1<-plot0+layer1 +scaleY + scaleX + facet_grid(group~.) plot1 I always get the error message: Error in check_formula...

Hello there, I'm trying to do lots of plots in one for-loop. But somehow ggplot does not evaluate arguments as expected. Here is an example: library(lattice) library(ggplot2) pl <- list() pl2 <- list() cDat <- as.data.frame(cbind(x1=0:100,x2=0:10,x3=1:20)) for(obs in c("x1", "x2")) { pl[[obs]] <- xyplot(cDat[,obs] ~ cDat[,"x3"], main=obs)

.... But I do not seem to find out how to fix the scale of the y-axis in this case. Any tips? Using R 2.6.1 on Windows. Thanks for any help, Pedro I attach below the code I am using: plotdata<-data.frame(x=factor(2:8), y=0.1*(2:8)) plot1<-ggplot() plot1<-plot1+layer(data=plotdata, mapping=aes_string(x='x',y='y'),geom='bar', stat='identity') RangeY <-c(0,1) YBreaks <- (0:10)*diff(RangeY)/10 YTickLabels<- as.character(YBreaks) plot2 <- plot1 + scale_y_continuous(limits=RangeY, breaks=YBreaks, labels=YTickLabels, expand=c(0,0)) print(plot2)

...o be a continuous line linking the different bars. I attach below the code I used, as well as the data. ================================================================ DFrame<-data.frame(x=1:10,y=0.5*(1:10),Upper=(1:10)+0.5, Lower=(1:10)-0.5) p <- ggplot() l1<-layer(data=DFrame, mapping=aes_string(x='x',min='Lower', max='Upper'), geom='errorbar', stat='identity') p<-p + l1 + scale_y_continuous() p ======================================== I wonder if anyone can help me with this. Best, Pedro de Barros

Dear All, I am trying to build a simple ggplot, but where the scale is reversed, i.e. the largest numbers are on the bottom. An example of the code I am using is > plotdata<-data.frame(x=1:10, y=runif(10)) > plot<-ggplot() > plot<-plot+layer(data=plotdata, mapping=aes_string(x='x',y='y'), geom='point', stat='identity', size=4) > plot<-plot+ scale_y_continuous(limits=c(1,0)) > print(plot) I was hoping that by reversing the limits argument I would obtain the result I wanted, but to no avail. I have searched the ggplot help and...

Hi all, Is there any way for me to to string in the argument of qplot or ggplot? for example qplot(x='carat',y='price',data=diamonds,geom=c('point','smooth')) instead of qplot(x=carat,y=price,data=diamonds,geom=c('point','smooth')) Thanks!! Regards, TszKin Julian [[alternative HTML version deleted]]

Dear all, Is there a reason, why there is no +-operator for aes (i.e. uneval) objects (as there is for themes and gg objects)? I had a couple of cases where such an operator would be useful, for instance to combine the result of aes and aes_string in functions. Any flaws with the following proposition: `+.uneval` <- function(e1, e2) { dup <- names(e1) %in% names(e2) if (any(dup)) { duplist <- paste(sQuote(names(e1)[dup]), collapse = ", ") msg <- sprintf(ngettext(length(dup), "elemen...

...e the axes cross exactly at (0,0). I tried using scale_y_continuous(limits=c(0,10)), but I always get an extra space at the bottom of the axes. The code I used is below. > plotdata<-data.frame(x=1:10, y=runif(10)) > plot<-ggplot() > plot<-plot+layer(data=plotdata, mapping=aes_string(x='x',y='y'), geom='point', stat='identity', size=4) > plot<-plot+ scale_y_continuous(limits=c(0,1)) > print(plot) I believe there may be a way to use expand_range to fix this (I think I read about it somewhere), but I do not seem to find out how. I ha...

...the nearly 500 examples of ggplot in use. If you're interested, you can also sign up to the ggplot2 mailing list at http://groups.google.com/group/ggplot2, or track development at http://github.com/hadley/ggplot2 ggplot2 0.8.4 (2009-12-08) ---------------------------------------- * aes and aes_string both convert prefixes to full names * aesthetics: corrected list of aesthetics to include american spelling of colour as well as base R abbreviations * aesthetics: fix bug in detecting which aesthetics are calculated * aes_string treats NULL as "NULL" * annotate now works with missing x...

...the nearly 500 examples of ggplot in use. If you're interested, you can also sign up to the ggplot2 mailing list at http://groups.google.com/group/ggplot2, or track development at http://github.com/hadley/ggplot2 ggplot2 0.8.4 (2009-12-08) ---------------------------------------- * aes and aes_string both convert prefixes to full names * aesthetics: corrected list of aesthetics to include american spelling of colour as well as base R abbreviations * aesthetics: fix bug in detecting which aesthetics are calculated * aes_string treats NULL as "NULL" * annotate now works with missing x...

...======================================= my code: >plotdata1<-data.frame(x=rep(factor(1:4),4), y=rep(0.1*(1:4),4), +group=as.character(rep(c('white', 'red', 'blue', 'green'),rep(4,4)))) >plot0<-ggplot() >plot3<-plot0+layer(data=plotdata1, mapping=aes_string(x='x',y='y', +fill='group'),geom='bar', stat='identity', position='stack') >print(plot3)

Hola a todos, Partiendo de: library(ggplot2); library(data.table) datos <- data.table(Date = seq.Date(as.Date("2017-01-01"), as.Date("2017-01-10"), by = "day"), V1 = rnorm(10), V2 = rnorm(10)) Quiero crear una función para pintar un gráfico cuyos argumentos sean

Dear R people, it is a pleasure to try and use functionnalities that are in ggplot, even with my poor capacities in R. so far, i'dlike to be able to use these in my own function, and to "be able to use it repeatedly from vectors where I store the names of my columns." I have understood that this is a very discussed topic, that many post have been exhanged but I cannot understand

...90 14 2 0.2 grey60 15 3 0.3 grey10 16 4 0.4 grey10 > levels(plotdata2$group) [1] "grey10" "grey30" "grey60" "grey90" > as.numeric(plotdata2$group) [1] 2 2 1 4 2 3 3 4 3 1 4 2 4 3 1 1 Code: plot0<-ggplot() layer1<-layer(data=plotdata2, mapping=aes_string(x='x',y='y', fill='group'),geom='bar', stat='identity', position='stack') scaleFill<-scale_fill_identity(labels=levels(plotdata2$group), guide='tile', name='Group') scaleY<-scale_y_continuous(limits=c(0,4), expand=c(0,0)) plot1...

Hi everybody! I'm trying to use ggplot2 to return a plot from a function (so I can add something or alter it then). Unfortunately, if I add a mapping to a layer in the function, the variable *name* is stored in the layer, rather than the variable's *value* - so that after the function returns the ggplot2-object, it doesn't plot because the variable don't exist in the

...at_density for creating stacked/conditional density plots * added parameters to geom_boxplot to control appearance of outlying points * overriding aesthetics with fixed values that have already been set with aesthetics now actually works * slightly better names for xaxis and yaxis grobs * added aes_string function to make it easier to construction aesthetic mapping specifications in functions * continuous scales now have labels argument so that you can manually specify labels if desired * stat_density now calculates densities on a common grid across groups. This means that position_fill and posit...