linechart

D3js - Creating and easily updating a multi-line chart

﹥>﹥吖頭↗ 提交于 2019-11-28 21:41:54
I've created a little test line chart using D3, but since I am quite new to the library I am not sure what the best way would be to add multiple lines to a chart, at the moment I only have one line displayed in this fiddle . I would like to display 2 lines on the chart, but I am unsure of how to achieve that without copy pasting code, which I am sure would be very inefficient as I would like to update/animate the graph at regular intervals based on user selection. Instead of this, var data = [12345,22345,32345,42345,52345,62345,72345,82345,92345,102345,112345,122345,132345,142345]; I would

Zoom Google Line chart

一笑奈何 提交于 2019-11-28 20:47:30
I am trying to create a line chart with the Google Visualization API. I want to enable zooming. Documents say that the 'explorer' option is useful. But when I try to use the 'explorer' option, the chart is shown but zoom does not work. This is my code: function drawVisualization(dataValues) { var data = new window.google.visualization.DataTable(); data.addColumn('date', 'Date'); data.addColumn('number', 'Count'); for (var i = 0; i < dataValues.length; i++) { data.addRow([new Date(dataValues[i].Year, dataValues[i].Month-1, dataValues[i].Day), dataValues[i].Count]); } var formatter_short = new

JavaFX Duplicate Series Added

霸气de小男生 提交于 2019-11-28 13:51:26
I am currently learning JavaFX and am trying to create an app that shows a line chart and allows the user to change certain variables which then changes the plotted line. The way I do this is by removing the series (and the data points within the series) and then refilling the series and adding them again as shown below. public void plot(double[] xArr, double[] yExactArr, double[] yApproxArr) { linePlot.getData().clear(); if (!exactValues.getData().isEmpty()) { exactValues.getData().remove(0, xArr.length - 1); approxValues.getData().remove(0, xArr.length - 1); } for (int i = 0; i < xArr.length

Points on a line in jfreechart

ぐ巨炮叔叔 提交于 2019-11-28 09:48:32
问题 How to get all the points (x,y) lying on the line connecting two data-points in a chart in jfreechart ?. In a chart, as we point to the end-points of the line, it shows the x & y coordinates. Can't we get the coordinates at any point on the line (via code)? 回答1: As you have two points, use the formulae of a linear equation to obtain the slope and intercept of the line. Once you have the equation, you can evaluate it at any point. Addendum: The org.jfree.data.statistics.Regression class offers

(MPAndroidChart-LineChart) I didn't get the last label in my app

时光毁灭记忆、已成空白 提交于 2019-11-28 09:41:56
问题 I use MPAndroidChart v3.0.2 now. The problem is that lasst data('05일') is not showing... This is the value while I get on Debug xVals : 1일, 2일, 5일 and It is the source and the result screenshot. I think the '5일' enter the 'red circle'... but I don't know the reason.. LineChart chart = (LineChart) findViewById(R.id.chart); if (ExRegList.length() == 0) { chart.clear(); chart.setDescription(null); chart.setNoDataText("데이터가 존재하지 않습니다."); // There is no data. chart.invalidate(); } else { ArrayList

Change label font color for a line chart using Chart.js

|▌冷眼眸甩不掉的悲伤 提交于 2019-11-28 01:51:25
I'm using Chart.js to generate some charts. The line chart requires labels. I can't seem to figure out a way to change the color of those labels. var chartGood = "rgba(50,182,93,0.5)"; var lineChartData = { labels : ["3/14","3/15","3/16","3/17","3/18","3/19","3/20","3/21","3/22","3/23"], datasets : [ { fillColor : chartGood, strokeColor : "rgba(255,255,255,1)", pointColor : "rgba(50,182,93,1)", pointStrokeColor : "#fff", data : [12, 21, 28, 29, 31, 55, 52, 50, 49, 59] } ] } var myLine = new Chart(document.getElementById("cpu-chart").getContext("2d")).Line(lineChartData); I've tried: labelColor

How to plot a Line Graph in Java using dataset from a text file?

自闭症网瘾萝莉.ら 提交于 2019-11-28 01:46:39
I have written a Java GUI program which opens a text file and reads the data in the left panel. Now I want to display a graph of the data read from the same file on the right panel. I have used JFileChooser to open files and read the data and display them on a text area. I want the data read from the file to be displayed using a two dimensional X-Y graph. The axis of the graph should be labeled using the label information specified in the data file. The values on the X-axis should begin from the x-axis start value specified, with intervals which increment at a rate determined by the x-axis

Stacking charts in JavaFX

China☆狼群 提交于 2019-11-28 00:32:01
I'm using a BarChart and a LineChart in JavaFX. When I make the two charts the same size and put them put at the same place they overlap eachother perfectly. How would I make the LineChart appear to e on top of the BarChart. For the moment I've been setting the opacity to 0.7 of them so they 'look good' but obviously that isn't the way to go. Jewelsea posted an example on a gist . It basically comes down to using a StackPane for stacking the charts and modifying the visibility of all the overlays. Here's a simpler modified version how I use it: public class StackedChartSample extends

Group data and plot multiple lines

橙三吉。 提交于 2019-11-27 20:08:04
I'd like to plot multiple lines in R for this dataset: (x = Year, y = Value) School_ID Year Value A 1998 5 B 1998 10 C 1999 15 A 2000 7 B 2005 15 Each school has data for different years. I'd like to have one line for each school. Let's create some data: dd = data.frame(School_ID = c("A", "B", "C", "A", "B"), Year = c(1998, 1998, 1999, 2000, 2005), Value = c(5, 10, 15, 7, 15)) Then to create a plot in base graphics, we create an initial plot of one group: plot(dd$Year[dd$School_ID=="A"], dd$Value[dd$School_ID=="A"], type="b", xlim=range(dd$Year), ylim=range(dd$Value)) then iteratively add on

Google Chart: How to draw the vertical axis for LineChart?

风流意气都作罢 提交于 2019-11-27 14:52:46
I want to draw a Google's line chart in my web page! Here is my js code: function drawVisualization() { // Create and populate the data table. var data = google.visualization.arrayToDataTable([ ['x', 'Cats', 'Blanket 1'], ['A', 1, 10], ['B', 2, 5], ['C', 4, 12], ['D', 8, 5] ]); var options = { curveType: 'function', lineWidth: 2, hAxis: { baselineColor: 'red', textStyle: {color: '#000', fontName: 'Arial', fontSize: 10}, gridlines: { color: '#f3f3f3', count: 5} }, vAxis: { baseline: 0, viewWindowMode: "explicit", viewWindow:{ min: 0 }, gridlines: { color: '#f3f3f3', count: 6} } }; new google