similar to: Gruff bar charts and zero data

I hope this day finds you well. I need to generate Spider charts (aka radar charts) , and am using Gruff to do so. How can I show lines and axis numbers on a Spider chart? Here''s what I''m trying to make: http://img.skitch.com/20080925-m573hhdy4n4x6i92s17knjqjeg.jpg How can I have those 0 - 100 numbers, and the concentric cirles in the graph? Joe -- Posted via

Does anybody know how to create a pie chart in Gruff without percentage but actual numbers? -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To

I have the following as my sql query: @total = @report.report_items.find_by_sql "SELECT SUM(amount) FROM report_items WHERE report_item_selected = ''y'' AND available = ''n'' AND user_id = 1" I am trying to add the value of SUM(amount) to a Gruff pie chart and it does not seem to be working. I have the following: g.data("Items", @total)

Has anyone achieved a stable deployment of Gruff with Rmagick on Windows? I''ve been playing around with this on Instant Rails and after installing the RMagick win 32 gem (local gem install as per instructions on web) and then Gruff on top of that. I did a test controller method that rendered the fruit pie chart as per the examples on the gruff site. This worked. However, when I refreshed

I am using Gruff to chart 2 sets of data and have run into a problem, the numbers between the two sets are so far apart that the first set appears as a mostly straight line at the top and the second a mostly straight line at the bottom. Is there a way to set the min/max vertical column values so that I can squeeze the data closer together so that there is more ''movement''? If

I am making a stacked bar graph in Gruff. Could anyone help me by telling me how I can change the order in which the data is stacked. No matter what order I put the data in, I get the same result on the png picure. Any help would be much appreciated. Thanks. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because

Hi all - This is probably easy stuff for the gurus here, but anyhow, here''s a little code snippet (and a screenshot) for doing Rails time-based charts with Gruff: http://tinyurl.com/g6zrt Props to Geoffery for writing such a fine library! Yours, tom

Hello, I used gruff library to display some of bar charts. It works fine but Gruff API documentation does not explain much like java api. So if I wanted to try some features like spacing between two bars, 3-D graph. It may be features available in Gruff library, but it is not well documented, I guess. Helpful resources would be appreciated. Thank You. Dakshesh

Hi all, I''ve been playing around with Gruff, love the pie chart functionality! I''m having one problem though with lots of items in the legend. It seems Gruff doesn''t handle wrapping of the legend? I couldn''t find it any of the documentation and was wondering how other people have handled this? There was a similar question posted on the Gruff Project

Hi I searched through the forum for the answer but couldn''t find any pointers. I have created an application using the gruff graphs. The problem is that these charts automatically calculates the y-axis scale. The requirement is to be in multiple of 100''s but internally it by default calculates something else which is not very convenient to read. Can someone please post some

I'm looking for a way to create bar charts with nested groups levels. I have data that is seperated to this factors: 1. Day part - day/night. 2. Season - summer/winter. 3. habitat - Cover/Open I have created in Excel the following chart which I would like to create in R: http://www.nabble.com/file/p22180918/chart.jpg I have seen this nice post:

I would like to add error bars to a bar chart, I have created in R. I am able to add error bars to a bar plot, but the same method does not seem to work for my bar chart version.   Is there a way to add error bars to bar charts? ________________________________________________________ Audi, Fiat, Peugeot, Skoda, Porsche, Toyota, Ford - Kelkoo har brugte biler til en hver smag! Klik her

Can't figure this out. I have the following list of salary averages per year, per position. The dput output is: > dput(salaries) structure(list(yearID = c(2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008), AVG = c(8956855.61, 7886684.166126, 7534048.43102, 7406439.339471, 7219148.437934, 6697734.908336, 6400379.88398,

Hi, Just wondering is there a way to make the width of bar charts that you create using R smaller? Also, a bar chart I created has a total number of 23 entries (with 2 different columns 14 and 9), how can I have the total number on the Y axis adding up to 23 and not the larger of the two columns? Hope this makes sense. BR Jack. -- View this message in context:

Dear all, I have a problem with my stacked bar charts. I have one very long bar, hence I would like to break the x-axis at a certain point so that the shorter bars can be seen better. Here is a cooked up example: library(lattice) group <- rep(1:3,10) x <- runif(30, 0, 100) y <- runif(30, 0, 100) x[5] <-500 z <- rep(seq(1:10),3) z <- z[order(z)] frame <-

A very common chart in the financial markets is a split chart with two time series shown in two vertically stacked sub-charts. A classic case would be the top panel showing the time series of historical prices of some stock, and the bottom panel showing the volume traded per day immediately below it. The common x-axis is the dates of the time period covered. I would like to create such a standard

i have a rails applications which can record various tasks and times used to do those tasks within each day in a week, now i want it to have the abbility of displaying the percentage of time spent in each task in a pie chart. can someone please show me the neccesary formatting of data and other steps required for this to be done using

Hi again! I put this question in another topics post before but I fear it might drown there. Is it possible to have transparent / alpha blended colors for pie charts? I am using the pies in a map of pies and those pies are sometimes overlapping so it would be great to see if another pie lies beneath. Thanks, Werner

Hi, for those with experience of Gruff module: suppose I want to send image from server straight to the browser (as example on gruff web site): send_data(g.to_blob, :disposition => ''inline'', :type => ''image/png'', :filename => "gruff.png") the server seems sending this binary data ok, but I am having

Hello, I have a graphics-related question: I was wondering if anyone knows of a way to create a bar chart that is colored with a three-part gradient that changes at fixed y-values. Each bar needs to fade green-to-yellow at Y=.10 and from yellow-to-red at Y=.20. Is there an option in a package somewhere that offers an easy way to do this? Attached is a chart I macgyvered together in Excel using a