[R] barplot: different colors for the bar and the strips
Hi, I am using barplot and would like to know if it is possible to have bars filled with one color while use a different color for the shading lines. The following code colors the shading lines, leaving the bars in white: barplot(1:5, col=c(1:5), density=c(1:5)*5) while the colors are applied to the bars when density is removed. barplot(1:5, col=c(1:5)) I did check ?barplot and found the following: col: a vector of colors for the bars or bar components. Thanks, Hao -- __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] barplot: different colors for the bar and the strips
On Thu, 2006-09-07 at 06:18 -0500, Hao Chen wrote: Hi, I am using barplot and would like to know if it is possible to have bars filled with one color while use a different color for the shading lines. The following code colors the shading lines, leaving the bars in white: barplot(1:5, col=c(1:5), density=c(1:5)*5) while the colors are applied to the bars when density is removed. barplot(1:5, col=c(1:5)) I did check ?barplot and found the following: col: a vector of colors for the bars or bar components. Thanks, Hao Note the key word 'or' in the description of the 'col' argument. You need to make two separate calls to barplot(). The first using the fill colors, then the second using the shading lines AND setting 'add = TRUE', so that the second plot overwrites the first without clearing the plot device. barplot(1:5, col=c(1:5)) barplot(1:5, col = black, density=c(1:5), add = TRUE) Just be sure that any other arguments, such as axis limits, are identical between the two calls. HTH, Marc Schwartz __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] barplot: different colors for the bar and the strips
Hello Marc Schwartz On Thu, Sep 07, 2006 at 07:54:05AM -0500, Marc Schwartz wrote: On Thu, 2006-09-07 at 06:18 -0500, Hao Chen wrote: Hi, I am using barplot and would like to know if it is possible to have bars filled with one color while use a different color for the shading lines. The following code colors the shading lines, leaving the bars in white: barplot(1:5, col=c(1:5), density=c(1:5)*5) while the colors are applied to the bars when density is removed. barplot(1:5, col=c(1:5)) I did check ?barplot and found the following: col: a vector of colors for the bars or bar components. Thanks, Hao Note the key word 'or' in the description of the 'col' argument. You need to make two separate calls to barplot(). The first using the fill colors, then the second using the shading lines AND setting 'add = TRUE', so that the second plot overwrites the first without clearing the plot device. barplot(1:5, col=c(1:5)) barplot(1:5, col = black, density=c(1:5), add = TRUE) Just be sure that any other arguments, such as axis limits, are identical between the two calls. HTH, Marc Schwartz Thank you very much for your help. It works but only in the order as you put it, since the following code only shows the color, but not the shading lines: barplot(1:5, col = black, density=c(1:5)) barplot(1:5, col=c(1:5), add = TRUE) Hao Chen --- Mining PubMed: http://www.chilibot.net - __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] barplot: different colors for the bar and the strips
On Thu, 2006-09-07 at 12:14 -0500, Hao Chen wrote: Hello Marc Schwartz On Thu, Sep 07, 2006 at 07:54:05AM -0500, Marc Schwartz wrote: On Thu, 2006-09-07 at 06:18 -0500, Hao Chen wrote: Hi, I am using barplot and would like to know if it is possible to have bars filled with one color while use a different color for the shading lines. The following code colors the shading lines, leaving the bars in white: barplot(1:5, col=c(1:5), density=c(1:5)*5) while the colors are applied to the bars when density is removed. barplot(1:5, col=c(1:5)) I did check ?barplot and found the following: col: a vector of colors for the bars or bar components. Thanks, Hao Note the key word 'or' in the description of the 'col' argument. You need to make two separate calls to barplot(). The first using the fill colors, then the second using the shading lines AND setting 'add = TRUE', so that the second plot overwrites the first without clearing the plot device. barplot(1:5, col=c(1:5)) barplot(1:5, col = black, density=c(1:5), add = TRUE) Just be sure that any other arguments, such as axis limits, are identical between the two calls. HTH, Marc Schwartz Thank you very much for your help. It works but only in the order as you put it, since the following code only shows the color, but not the shading lines: barplot(1:5, col = black, density=c(1:5)) barplot(1:5, col=c(1:5), add = TRUE) Hao Chen That is correct. The sequence is important, as the shading lines are drawn with a transparent background, enabling the original color to be seen. Reversing the order, you are overplotting the shading lines with opaque colored rectangles. Hence, the lines are lost. HTH, Marc __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
