graphing

I'm able to accomplish this in Google Spreadsheets, below is a screenshot: Here's the small dataset in CSV Buy PPU,Sell PPU,Net PPU 0.023,0.019,-0.000725 0.026,0.0165,-0.003725 0.021,0.021,0.00735 0.015,0.0165,0.0147 0.021,0.028,0.0168 0.018,0.028,0.0198 jsFiddle with basic configuration: http://jsfiddle.net/kaatula/j3FJf/1/ Chart.js documentation: http://www.chartjs.org/docs/ D3 documentation: http://strongriley.github.io/d3/api/ Any help is appreciated. I'm not seeing an example in either library of this specific kind of chart (called I believe "Stepped" or "Step line"), but I believe they

I'm trying to write a force-directed or force-atlas code base for a graphing application I'm building for myself. Here is an example of what I'm attempting: http://sawamuland.com/flash/graph.html I managed to find some pseudo code to accomplish what I'd like on the Wiki Force-atlas article. I've converted this into ActionScript 3.0 code since it's a Flash application. Here is my source: var timestep:int = 0; var damping:int = 0; var total_kinetic_engery:int = 0; for (var node in list) { var net_force:int = 0; for (var other_node in list) { net_force += coulombRepulsion(node, other_node,

I'd like to implement a rolling graph showing new users by day over the last 7 days using Seer. I've got Seer installed: http://www.idolhands.com/ruby-on-rails/gems-plugins-and-engines/graphing-for-ruby-on-rails-with-seer I'm struggling to get my brain around how to implement. I've got an array of the Users I want to plot: @users = User.all( :conditions => {:created_at => 7.days.ago..Time.zone.now}) Can't see the right way to implement the :data_method to roll them up by created_at date. Anyone done this or similar with Seer? Anyone smarter than me able to explain this after looking at the

I want to put a circled number on a graph as a marker near (but not on) a point. Sounds easy, but I also want to be invariant of zoom/aspect ratio changes. Because of this invariant, I can't draw a circle as a line object (without redrawing it upon rescale); if I use a circle marker, I'd have to adjust its offset upon rescale. The simplest approach I can think of is to use the Unicode or Wingdings characters ① ② ③ etc. in a string for the text() function. But unicode doesn't seem to work right, and the following sample only works with ① and not for the other numbers (which yield rectangle

I'm looking for a nice graphing library for JavaScript that can handle the following types of graphs: Line Graphs Histograms Scatterplots Motion Charts I've tried Google's Chart Tools but they don't seem to have a nice histogram chart (nor can I get their motion chart to work properly, even served off my Apache web server). I'm hoping that there's a decent library out there that can support all of these, however if I must, I may include 2 different libraries (looking at Google Chart Tools, gRafael, flotr, and rgraph right now - none of which seem to include ALL of the requirements I have). I'm

We graph fast counters with sum(rate(my_counter_total[1m])) or with sum(irate(my_counter_total[20s])) . Where the second one is preferrable if you can always expect changes within the last couple of seconds. But how do you graph slow counters where you only have some increments every couple of minutes or even hours? Having values like 0.0013232/s is not very human friendly. Let's say I want to graph how many users sign up to our service (we expect a couple of signups per hour). What's a reasonable query? We currently use the following to graph that in grafana: Query: 3600 * sum(rate(signup