UltimaCalc will calculate the mean, median, sample standard deviation and population standard deviation, sample variance, coefficient of variation, interquartile range, skewness, excess kurtosis, and mean deviation. It will also calculate the standard errors of the mean, median, standard deviation, variance, an of the coefficient of variation.
The tool also displays the number of items and their total. This feature is handy for the times you simply want to add up a long list of numbers, and be able to easily correct any errors.
You can choose which of these items are to be shown, and resize the window so that the other items are not shown, as in the image below. You can also select a transformation to be applied to the data before analysing it.
You can quickly enter data by using the numeric keypad. Type a value into the box in the upper left and hit the 'Enter' key. The value will be added to the list and the entry box will be cleared, ready to accept more data. Every time you enter an item of data, UltimaCalc will try to perform the calculations. The results can be copied to the Windows clipboard.
If you right click on an item in the list, a menu will pop up to allow you to edit or delete the item. You can write notes about the data, and save the data and notes to a file.
Because a calculation is attempted every time you enter an item of data, automatic logging of the calculation is not done. Instead, click on the Log button if you want the calculation to be included in the log file.
You can write notes to remind yourself what the data is about, and save the data with these notes to a plain text file for future reference. .