Implementing parallel coordinates for multi dimensional data in Java
Hi, I am planning to implement parallel coordinates in java using JOGL library. Do you have any other suggestions? Thank you Bala ...
data-visualization
How to process large block data visualization with Flex?
I know that's a big topic. However, it's better to know some general ideas to handle such problems. I have an application which requires Flex to render statistics data calculated instantly on the client side from a downloaded data set. The problems are: the data set is large and needs more than 10 seconds to be downloaded. there are s...
Cluster Graph Visualization using python
I am assembling different visualization tools that are available in python language. I found the Treemap. (http://pypi.python.org/pypi/treemap/1.05) Can you suggest some other tools that are available. I am exploring different ways of visualization of web data. ...
Make DataVisualization Chart object zoom and scrollable by dragging the scroll bar
I'm using a System.Windows.Forms.DataVisualization.Charting.Chart control, and have the ChartArea's AxisX and Y both set Zoomable to true. When chart is zoomed in, I see the scrollbar, but cannot drag it. Is it possible to drag the scrollbar, and have the chart display move as I am dragging the scrollbar button? I want to make it intui...
API for displaying graphs in a web app?
I have graphs (nodes/arcs) that I want to display to the user. I need to be able to capture the event of a user clicking on a node. Something like Google Charts API's Simple Org Chart would be great, but it looks like it only supports trees. I would like to use JavaScript. What other service/toolkit can I use? Or should I hack somethi...
What techniques exists in R to visualize a "distance matrix" ?
Hi all, I wish to present a distance matrix in an article I am writing, and I am looking for good visualization for it. So far I came across balloon plots (I used it here, but I don't think it will work in this case), heatmaps (here is a nice example, but they don't allow to present the numbers in the table, correct me if I am wrong. ...
Save a Processing sketch to a PNG file, server-side with no GUI/display
I'd like to use Processing to render a visualization on the server side (headlessly, with no GUI). The Processing sketch is static (i.e. does not animate), so I only need to grab the first frame, and I'd like to serve this result out to the users of our web application on-demand. I've searched around a bit on the processing.org forums a...
Making graphs of hadoop runs.
On some websites (like in this PDF : http://sortbenchmark.org/Yahoo2009.pdf) I see very nice graphs that visualize what an Hadoop cluster is doing at what moment. Were these made "manually" (i.e. with some homemade tool) or is there a "ready to run" script/tool that produces something like this for me? ...
What is the best and most comprehensive JavaScript graphing and plotting API?
I really want something that is eye catching and modern. I like how Digg does the Digg swarm (http://labs.digg.com/swarm/) ...
How would I visualize the amount of time that's passed between dates?
If I had a product and wanted to visualize the amount of time that has passed between releases of that product, what type of graph would I use? What I'm trying to show is the average amount of time that has passed between release cycles, as well as (approximately) how far through the current release cycle we currently are. The best I co...
Data visualization: Bubble charts, Venn diagrams, and tag clouds (oh my!)
Suppose I have a large list of objects (thousands or tens of thousands), each of which is tagged with a handful of tags. There are dozens or hundreds of possible tags and their usage follows a typical power law: some tags are used extremely often but most are rare. All but the most frequent couple dozen tags could typically be ignored, i...
Is there a ManyEyes API?
I can't find one. But I find it hard to believe they've built the service without an API. Can it be true? If so, can anyone suggest an alternative, other than the Google Charts API? Thanks! ...
Visualizing Textual Data: Members of Congress and their affiliations
I am having a hard time getting started with some way to visualize some data consisting largely of congressional members and their political affiliations. As such it is mostly text data and doesn't lend itself immediately to something like ManyEyes, Google Charts etc. More to the point, I have spreadsheets of data on senators and repres...
Coloring a map according to mapped database values
Question: On http://www.bbc.co.uk/news/10150007 one can see a map of european countries colored according to state debt/deficit. Now I would have already found it useful several times if I was able to do such a thing myself, for example to visualize regional sales data. Does anybody know: Is there any (OpenSource) tool with which I ca...
Error caused by string being too big when passed to Google Visualization API
I am trying to create a WordCloud through the Google Visualization API. You have to create a google.visualization.DataTable and add the string to a cell in the table. I basically copied the example linked above, and passed in a simple string of a few words (@note.articletext), and the WordCloud worked fine. <script type="text/javasc...
Tools for mapping time series data
Hello, I'm looking for suggestions/examples of tools or APIs that enable the mapping of large amounts of time series data into an intensity map. The data includes dimensions for country, series, and year. Here's an example http://spreadsheets.google.com/ccc?key=t9ZwziZAgy768ZTXDEg8Maw&authkey=CPn0pdoH&hl=en_GB&ui=1 ...
How to make 3D plots with categorical data in R?
I've been trying to create a 3D bar plot based on categorical data, but have not found a way. It is simple to explain. Consider the following example data (the real example is more complex, but it reduces to this), showing the relative risk of incurring something broken down by income and age, both categorical data. I want to display t...
Charting libray that offers Linked line chart with dots
I'm trying to plot data from several entities over time. Each entity will have its own line, so there will be several lines. Each line will be connected, but it's important that dots are drawn to represent data. I'm aware of the linked bar chart, but at initial inspection, I can't seem to find one that offers me the ability to draw ...
Python modules for visualization of C++ code
I'm looking for python modules that can help with grepping C++ code. I have a large code base that I would like to do some analysis on. Ultimately I would like to come up with a graphical map of the software. There is lots of message passing going on amongst apps so I would like to be able to capture that information and present it vi...
What is a good visualization library for creating state diagrams and animations?
I'd like to post-process log files and extract node data and transitions, and then graph them in a gui of some kind. So, I'd like to programmaticly draw bubble diagrams, maybe with animations showing packets going from node to node. Ideally, perl or java would be the language of choice, but anything that runs on a linux platform would ...