4
votes
2answers
126 views

Representing time intervals in a chart

I'm trying to design a visual representation of a child's sleep schedule for a given week. I was thinking of making a chart with the time of day on the y-axis and the days of the week on the x-axis ...
1
vote
1answer
79 views

Does anybody know why google chart sparklines were deprecated? [closed]

This may be asking about old news, but I was curious why Google deprecated sparklines in their charts API ("officially deprecated as of April 20, 2012"). Did they come to the conclusion that ...
14
votes
4answers
2k views

How best to show server availability over a 24 hour period?

I have a customer who asked me to provide a "Server Availability" chart for the last 24 hours that looks like this one: Y represents hours (0 - 23); X represents minutes (0 - 59) In this example you ...
1
vote
1answer
65 views

Chart axis autoscaling

I know this is hard to answer in general (i.e. not in the context of a specific application and user needs), but what evidence is there for or against autoscaling of axes on a chart in terms of user ...
3
votes
1answer
213 views

Innovative pie chart? Is there any graph that can be used instead of pie chart?

I have been trying to find solution for coming up with a better pie chart for couple of reasons. Overlaying #% (text) on top of tiny portion of piechart wasn't really working in my opinion. Also, ...
4
votes
1answer
100 views

Graph overlay that doesn't obscure the data

I'm building an app that renders a line graph of the user's wellness over time. (For example:) It also needs to mark the days they took medication. Originally, I wanted to place a dot at the ...
4
votes
1answer
134 views

How to handle daylight savings time when displaying logged data

If we have a system that measures and logs a users energy consumption, and then displays this data on an hourly basis, how should you display the anomalies that occur when shifting to/from daylight ...
1
vote
1answer
116 views

Several data visualizations on one page?

I have a set of visual models that can answer different questions such as: How is Country A doing in x What is Country A's proportion of y ... There will be approximately 5-6 questions with ...
8
votes
3answers
291 views

How to visually show status values for a large number of data points?

For example, what if you have 100 valves in a process plant. You want to show at a glance their status, with the most important thing to notice is a value that indicates a valve that is in critical ...
5
votes
6answers
394 views

Necessity of y-axis label on a line graph?

I'm currently designing a line graph to provide a relative, "quick-glance" view of data trends, rather than the granular stock-market-style view. There will only be one trend line. Currently each of ...
49
votes
8answers
3k views

Should I fill empty space in bars?

It's about bar-charts in a table. Every row has a bar, which visualises a value of the row. The biggest value of the whole table is the maximum of the bars and not necessarily on the same ...
1
vote
2answers
83 views

Finding a label for items that don't fit into categories

I'm maintaining a reporting application. When displaying data, there is an option of displaying a certain number of items explicitly and lumping together other items into a single category. For ...
4
votes
2answers
105 views

Interaction model for hierarchical selection

For a line chart, I would like the user to be able to drill-down and look at how specific groups are fairing over time. First, there is the selection of dimension and then groups within that ...
5
votes
3answers
152 views

Representing large numbers

I'm developing a charting application. There could be a situation where I would have to display large numbers on the chart. The problem is that they number labels have to fit inside the chart columns, ...
31
votes
8answers
1k views

How to visualize data with extreme value differences?

I am working on some routines for a client application to visualize data in a 3d bar chart style. The data consists mostly of smaller values with only a few large values. For example: 6,942,535,341 ...
8
votes
3answers
303 views

Information visualization - display 6 related ranges on a single chart

I sell apples and oranges. I know how many items of each kind I expect to sell today and I know how many I've actually sold so far. I need to design a chart displaying this data in real time. What's ...
2
votes
1answer
232 views

Charts or Tables

I have been working on a dashboard where a chart and a table are requested. However, both would contain the same data. For instance, it is required that a country map is shown, with the values of ...
4
votes
1answer
273 views

How would you design a two stage bar chart drill down?

A common design pattern I've used is using a horizontal bar chart to visualize numeric data about a series, and a click through drilldown that discloses a pane with more detailed information about the ...
1
vote
2answers
188 views

How can I handle long text displayed inside a bar in a bar-chart?

I'm working on a project where one of the reports I'm displaying on screen is a type of Gantt Chart. The customer wants some information about the activity the bar represents displayed inside of the ...
1
vote
3answers
202 views

How to let the user know that we have not enough data to render chart?

...in various charts like line, pie and column charts. What a message to show? In what place?
5
votes
1answer
150 views

Can this chart axis labelling be improved? (Showing zero in histogram)

I have a chart like the one pictured, with the following "tick intervals": 0, 1-10000,10001-20000,20000-30000 and 30000+ What is a consistent way of labeling the x-axis? I am not pleased with how ...
0
votes
5answers
2k views

Tool for making attractive Org Charts and similar diagrams [closed]

I'm a professor who is looking for a diagramming tool that will make "org chart" type and flowchart diagrams that look really slick and attractive. There are many mindmap tools out there, but I'm ...