legend

问题 Is it possible to change the legend symbol color in Highcharts? For example demo example contains two series and the symbols in legend are in blue and black (same as the series). I couldn't find any symbolColor param in the documentation. How do I change them both to say black? legend: { layout: 'vertical', floating: true, align: 'left', verticalAlign: 'top', x: 90, y: 45, symbolPadding: 20, symbolWidth: 50, symbolColor: '#000000' ????? }, 回答1: Add color for the legend in each series. series:

问题 I have a matlab function myfunction(var1,var2) which gives me a plot with a legend. I would like to generate more plots with this function in one graph. This works so far i.e. for 2 plots in one graph with: myfunction(a,b) hold on myfunction(c,d) hold off The problem here is that the legend which is generated for each plot with: legend(sprintf('%s%s',var1,' on ',var2)) legend('boxoff') is only appearing for the last instance of myfunction (in this case with myfunction(c,d) , there would be

问题 I have data that falls into one of many categories. Here is a very simplified version of what I'm doing to my data. I want to make a scatterplot where different colors represent different categories. However, there are many different categories so instead of manually choosing the colors, I'm letting R choose for me by setting col=data$category within the plot function. However, I can't figure out how to generate a legend -- every parameter that I put inside the legend function never actually

问题 When placing the legend outside of the axes using bbox_to_anchor as in this answer, the space between the axes and the legend changes when the figure is resized. For static exported plots this is fine; you can simply tweak the numbers until you get it right. But for interactive plots that you might want to resize, this is a problem. As can be seen in this example: import numpy as np from matplotlib import pyplot as plt x = np.arange(5) y = np.random.randn(5) fig, ax = plt.subplots(tight

问题 I find out an interesting and strange difference between the same chart in ggplot and ggplotly income_gap_chart <- ggplot(income_gap, aes(x = Country, y = Percent, fill = Income)) + geom_bar(position = "dodge", stat = "identity") + scale_fill_brewer(palette = "Set1") + coord_flip() + theme(axis.title.y = element_blank()) + scale_y_continuous(limits = c(0, 100)) + theme_tufte() + theme(axis.title.y = element_blank()) + theme(legend.position = "bottom") For ggplot it looks perfect with a legend

问题 Desired feature I would like to be able to call ax.legend() on an axis containing a contourf plot and automatically get the legend (see plot below for an example). More Detail I know how to create legend entries for contourf plots using proxies, see code below and which is already discussed in this Q&A. However, I would be interested in a solution where the final call to axes[0][-1].legend() does not require any handles being passed. The plot generation (more complex plots than in this

问题 I have managed to use the grey scale command to make a 3D scatter plot with the third dimension representing a color gradient. I have hit a wall when trying to produce the legend that coincides with it though. I already have the range of colors I want I just dont know how to tell R to make them into a legend. Here is my code. conocarp.stands<-c(264,330,400,594,600,700,726,730,800,825,825,826,1914,2145,2200,2310,2475,2640,3630,3960,3960,4124,4554,5082,8250,8475,9200,1000) fimb.size<-c(540,2160

问题 Inspired by this question where apparently the top answer is using an unsafe/erroneous way to add colors to a legend for a scatter plot. Top answer suggests doing this: data<-iris plot(data$Sepal.Length, data$Sepal.Width, col=data$Species) legend(7,4.3,unique(data$Species),col=1:length(data$Species),pch=1) Comments suggest using levels() instead of unique() for controlling the text and colors in the call to legend() , but are unclear on why it would help. I would need a better explanation to

问题 This question already has answers here : Add legend to ggplot2 line plot (3 answers) Closed 5 years ago . I have a question regarding the use of ggplot. I have the following data.frame, and a constant. I'm using the following function and I managed to make my plot but I can not print the legend, what am I doing wrong? this function would I use to get the plot: LINER_GRAPH_POWER_LIST_VALUES<-function(DF_N_EPC_AND_FOUND_EPC, DF_READ_EXTERNAL_LIST_EPC_TAGS ){ require(ggplot2) ggplot(DF_N_EPC_AND

问题 I have a Windows Forms Application that displays a graph from data stored in a database. I am able to get the data to display in a bar graph or pie graph. But the legend in the bar graph only displays "Series1", the name of the series. The legend of the pie chart displays a correct legend with the series data. I've searched MSDN and found several articles on adding a legend but they all have the same results. Here is my bar chart code: string[] xvals = new string[dt.Rows.Count]; int[] yvals =