visualization

问题 I am typically using R to do statistical analysis, and rather new to the data visualization capabilities. I'm trying to figure out if there is some way to marry the motion chart package gvisMotionChart with the mapping package, gvisGeoMap . I'd like to display a video of events over time, appearing on a map on their date of occurrence at lat/lon coordinates and then fading out. Anyone know if it's possible to do this? Any additional concerns if I have over 50,000 records (daily over 5 years)

问题 I am trying to visualize decision tree structure in pyspark. But all the tools are for data. I could not find any for visualizing tree structure. Or is there a way I can visualize using the rules from toDebugString ? 回答1: I have tried to do the following in order to create a visualization : Parse Spark Decision Tree output to a JSON format. Use the JSON file as an input to a D3.js visualization. For more code you can refer to my prototype at GitHub here. 来源： https://stackoverflow.com

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I am looking to visualize ontologies for understanding and making others understand. I would prefer to have top-down hierarchy of

问题 There's 2 parameters where I want to try different values for: a = [0.0, 0.5, 0.6] # len == 3 b = [0.0, 0.02 , 0.05, 0.1] # len == 4 For each value of a, try each value of b. This comes with 3 * 4 = 12 different results. My data comes in the format of res = [(0.0, 0.0, res1), (0.0, 0.02, res2), ...] Is there any way I can neatly visualise this? I was thinking of a contour/heat map or 3d plane but sadly I cannot get that to work. 回答1: There are many different options. The first step in any

问题 I have a 2D matrix in which the elements are either 1 or 0. As as time progresses, this matrix gets updated w.r.t. some other variables. The update is such that the '1' elements of matrix moves through the coordinates to aggregate itself to a particular location (may be centre of the 2D matrix). So I would like to track the motion of each '1' elements towards the centre. How can I realize this? 回答1: This answer will help you with the visualisation of your points and their movement history,

问题 Given t1,t2,t3,t4 as real value parameters, and the constraints of the following format: (t1>=0 and t2>=0 and t3>=0 and t4>=0) and ((t2<=5) or (t1+t2+t3+t4<=3)) Could this constraint be plotted using the .net library of matlab? (I am using C#). My concern is: 1. This has four dimension, I am not sure how is the graph can be represented in Matlab; 2. And basically this constraint might result in a convex polygon, can such polygon been drawn in Matlab? I am totally new in Matlab, therefore if

问题 I want to make a map that represent the traffic for a city. So I have some traffic metrics that I want to visualize on the map. I wish to color each road different colours depending it's current traffic. Something like that: I tried to find a tutorial on how to apply style to only part of a roads, but I could not find how to do that. Thank you very much it will help a lot thanks!! 回答1: You should go with a stylefunction for a vector layer: https://openlayers.org/en/v4.6.5/apidoc/ol.html#

问题 Inside a Simulink Scope , it is possible to select Print to Figure . This will open a figure with the same content as the original scope. Is there a way to perform this action programmatically? See also this help page, this help page and this page. 回答1: Depends a little on how fancy you want/need to get. If you really want to use exactly the same code as the UI callback then you'll need to investigate how to use the callback functions in the following directory/package: MATLABROOT\toolbox

问题 I am brand new to Semiotic (https://semiotic.nteract.io/), and I have what is likely an embarrassingly easy question. I am trying to make a line chart. How do I get the following Semiotic code - taken directly from https://semiotic.nteract.io/guides/line-chart - to display in my browser? I have a Mac. What I have tried is to first install yarn and then do yarn add -E semiotic as the first link says. Next, I copied the below code directly into a text file, which I saved as a .js file. I then

问题 I am using D3.js for making a simple visualization of facebook group data. In order to make this visualization I am using the data from the facebook graph api which I am saving as a JSON file. I load the data using d3.json() function and I print it to the console. The data on the console is correct representation of what is in the file. However, when I bind it to the <g> elements in d3 then I don't get the top 14 data points shows. In fact they are represented in as null objects in the posts