rgraph

How do I redraw an RGraph SVG line plot?

由 吃可爱长大的小学妹 提交于 2021-02-17 06:51:06
问题 I have a simple web server embedded on a microcontroller. One of the web pages allows the user to plot captured data (in CSV format). The page first loads all of the data and presents it to the user, but then I want to allow the user to do things like select and deselect data (columns), change line colors and change data scales. When I naively call RGraph.SVG.Line a second time, it simply redraws the modified chart over top of the already existing image. How do I get RGraph to delete the

R可视化 | 气泡图

由 北战南征 提交于 2021-02-13 03:38:18
气泡图 气泡图是一种多变量图表，是散点图的变体，也可以认为是 散点图和百分比区域图的组合 [1] 。气泡图最基本的用法是使用三个值来确定每个数据序列，和散点图一样。气泡图通过气泡的位置及面积大小，可分析数据之间的相关性。 本文可以看作是《R语言数据可视化之美》的学习笔记。前两部分可见（跳转）： 趋势显示的二维散点图 分布显示的二维散点图 该书对气泡图的绘制并不是非常详细，小编将内容进行了大量拓展。下面的例子将一步步带你完成气泡图的绘制。本文内容丰富，希望大家都能学到自己想要的内容。 下面的例子将一步步带你完成气泡图的绘制。本文内容丰富，希望大家都能学到自己想要的内容。 本文框架 数据介绍 数据集来源gapminder包中，包含了1704行和6个变量。其中6个变量含义分别为： country 国家142个水平 continent 大陆5个水平 year 1952年-2007年（间隔为5年） lifeExp 出生预期寿命，以年计数 pop 人口数 gdpPercap 人均国内生产总值(扣除通货膨胀因素后的美元) 由于数据过多，我们感兴趣的是年份为2007年的数据，所以使用dplyr包进行数据处理，具体数据处理案例可见我写的另一篇推送： [R数据科学]tidyverse数据清洗案例详解 。数据缩略版如下： 手把手绘制 geom_point()函数构建 气泡图是添加了第三维度的散点图

Error “geom_point requires the following missing aesthetics: y” when using geom_point

由 被刻印的时光 ゝ 提交于 2020-01-16 09:02:22
问题 I need to plot a few columns from my dataframe. Generally speaking, in this chart, I need the values of the three selected columns to be plotted as one row, where X will represent the Release column, as per the following dataframe: Release,AddedClasses,ModifiedClasses,RemovedClasses,AddedMethods,ModifiedMethods,RemovedMethods,AddedImports,RemovedImports,AddedFields,ModifiedFields,RemovedFields v1,39,33,0,43,25,0,3,0,21,0,0 v2,48,62,0,88,56,1,35,0,42,0,2 v3,54,93,0,117,95,1,67,0,67,0,2 v4,55

RGraph reload the previous graph when i reload the page and i click the body of the page

由 吃可爱长大的小学妹 提交于 2020-01-02 03:40:09
问题 i use that for clear the graphs: for (var i=0; i< document.getElementsByTagName('canvas').length; i++) { RGraph.Clear(document.getElementsByTagName('canvas')[i]); } when i reload the page the previous appear and the new graph is placed over the last one, and the new label is placed above the last one i use donut and pie charts thankss!!! 回答1: You need to clear the ObjectRegistry, which keeps track of objects. You can do that with: RGraph.ObjectRegistry.Clear(); Or you can clear objects

ggplot2 time series plot with colour coded wind direction arrows

由 北慕城南 提交于 2019-12-21 12:33:15
问题 Good afternoon, I am trying to produce a time-series plot with arrows showing wind direction and coloured to show wind speed strength. Ultimately I am trying to get a plot something like this (just an example picture I found online): I have managed to find a similar post (see below) and I tried to follow but I am stuck with the displaying of Wind Direction arrows correctly. Previous similar post: ggplot2 wind time series with arrows/vectors The codes I have put together so far are as follows:

Add additional column in SVG rgraph to display values of bar graph

由 痴心易碎 提交于 2019-12-08 13:27:02
问题 I have a hbar bar looking like: I wanted to add additional column at the end to display bar values. I want to add 2 columns to display number 2 and 3 on the first row. I want my graph to look like this: I tried to append in the svg but It is not showing. What is the proper way to dynamically add additional Columns in rgraph for SG? FYI I added the columns using jquery data = obj.data; $.each(obj.properties.yaxisLabels, function(i, v) { var nodes = RGraph.SVG.text.find({ object: obj, text: v }

RGraph reload the previous graph when i reload the page and i click the body of the page

由 我与影子孤独终老i 提交于 2019-12-05 06:09:51
i use that for clear the graphs: for (var i=0; i< document.getElementsByTagName('canvas').length; i++) { RGraph.Clear(document.getElementsByTagName('canvas')[i]); } when i reload the page the previous appear and the new graph is placed over the last one, and the new label is placed above the last one i use donut and pie charts thankss!!! You need to clear the ObjectRegistry, which keeps track of objects. You can do that with: RGraph.ObjectRegistry.Clear(); Or you can clear objects related to a specific canvas tag with: RGraph.ObjectRegistry.Clear(myCanvas); Or you can remove a specific object

ggplot2 time series plot with colour coded wind direction arrows

由 a 夏天 提交于 2019-12-04 06:53:52
Good afternoon, I am trying to produce a time-series plot with arrows showing wind direction and coloured to show wind speed strength. Ultimately I am trying to get a plot something like this (just an example picture I found online): I have managed to find a similar post (see below) and I tried to follow but I am stuck with the displaying of Wind Direction arrows correctly. Previous similar post: ggplot2 wind time series with arrows/vectors The codes I have put together so far are as follows: require(ggplot2) require(scales) require(gridExtra) require(lubridate) dat <- data.frame(datetime =

Calling Javascript using UIWebView

由 半世苍凉 提交于 2019-11-27 01:16:52
I am trying to call a javascript in a html page using the function - View did load function { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *writablePath = [documentsDirectory stringByAppendingPathComponent:@"BasicGraph.html"]; NSURL *urlStr = [NSURL fileURLWithPath:writablePath]; NSFileManager *fileManager = [NSFileManager defaultManager]; NSString *myPathInfo = [[NSBundle mainBundle] pathForResource:@"BasicGraph" ofType:@"html"]; [fileManager copyItemAtPath:myPathInfo toPath

Calling Javascript using UIWebView

由 [亡魂溺海] 提交于 2019-11-26 07:38:10
问题 I am trying to call a javascript in a html page using the function - View did load function { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *writablePath = [documentsDirectory stringByAppendingPathComponent:@\"BasicGraph.html\"]; NSURL *urlStr = [NSURL fileURLWithPath:writablePath]; NSFileManager *fileManager = [NSFileManager defaultManager]; NSString *myPathInfo = [[NSBundle
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