Cepel Inspect is a tool specializing in the ad hoc analysis of large, intransparent data sets. It generates a comprehensive overview of the data structure and reveals hidden relationships. Just drag-and-drop any kind of tabular data into the main window to start the analysis.

Getting Started

  • Download the fully functioning trial version of Cepel Inspect for Windows or Java.
  • Drag-and-drop a data file into the main window or copy-and-paste data from a spreadsheet. 
  • Click on a chart to take a closer look. Try scrolling in/out, marking an area, moving the mouse over data points or the legend. A click with the right mouse button gets you back to the overview.

Download Trial Version

Cepel Inspect 4 (Trial Version) for Windows, self-contained installer

Cepel Inspect 4 (Trial Version) for Mac OS X

Cepel Inspect 4 (Trial Version) Java Version, suitable for Mac OS X, Linux and Windows  (runs without installation, requires JRE 1.6). 
You can start Cepel Inspect with the following command: 
java -Xmx512M -jar cepelinspect-4.jar

Data Sets

  • sensor data from industrial facility
  • one of the sensors has differing curves for normal and substandard performance
  • click on the second chart in the first row to see the different curves
  • the discovered correlation can be used to predict failures
  • data on product quality
  • intransparent data basis with lots of columns
  • hidden relation: drop of quality towards end of 8-hour shift
  • find the chart showing relation between 'quality' and 'hours of shift'
  • results from gene analysis via microarray
  • distribution disturbed by underlying frequency
  • zoom in to detect the characteristic pattern


1) What’s new in version 4?

Faster processing, larger files: 

  • Initial visualisations are created in seconds, more advanced models are calculated in the background and added iteratively.
  • Optimized for files up to 100 MB. 
  • Up to 100 times faster than Cepel Inspect 3.

More insights, traceable analyses:

  • Take a look at each data point by moving the mouse over it.
  • Select groups of data points with the new select option. They will be highlighted in all charts to reveal additional structures.
  • Textual summary below charts.

More import / export options:

  • Import MS-Access files, simply by drag-and-drop.
  • Connect to MySQL databases with new command-line options.
  • Export charts as PNG images.

2) What are the limitations of the trial version?

Use of the trial version is limited to evaluation purposes and academic usage. Optimizations to analyse larger data sets (‘big data’) are switched off. Export of full models, e.g. for prediction or classification, is not included.

3) What is the difference to Wolfram|Alpha Pro?

Wolfram|Alpha Pro and Cepel Inspect are both tools that perform an automatic analysis and visualisation of custom data sets. Wolfram|Alpha Pro is realized as an online service build upon Mathematica and its powerful statistical toolbox. Cepel Inspect is a stand-alone software that follows a new mathematical approach. One practical difference is that Cepel Inspect accepts larger data sets, which are processed locally without the requirement to upload them. It focuses on raw tabular data where it typically reveals more relations than Wolfram|Alpha Pro (e.g. try to analyse the titanic data set with both tools). The major advantage of Wolfram|Alpha Pro is that it analysis a wide range of data types like images, audio files and many mathematical formats.

4) Why do I get a warning from my virus scanner when installing the windows version?

Unfortunately, we received reports of warnings about a possible infection of our windows installer. These false warnings are caused by the way we package Cepel Inspect, not by a virus (more details on the manufacturers webpage). We are currently working to prevent this warning in future releases. You can circumvent it by using the Java version of Cepel Inspect instead.

5) Where can I find additional data sets?

Some additional data sets are: titantic, bank-data, aaa-ordered. Websites that provide many more data sets are e.g. mldata.org or the uci repository. However, we recommend to use your own data to get a good feeling for the capacity of Cepel Inspect. The software can import the majority of tabular data in text files automatically.