![]() Will return a random number between 0 and 1 Will return an Integer between 50 and 100 Return Integers between Start and Finish ( Example 9.) =Choose(Randbetween(1,6), Numb 1, Numb 2, Numb 3, Numb 4, Numb 5, Numb 6 ) Random from a small list of numbers ( Example 8.) =Index(List, Randbetween(1, Counta(List) )) =Vlookup(Randbetween(1,List Length), List, 2) Where NORMINV(RAND(), 0,60) will return values between -180 and +180, 99.7% of the timeĭependant on how many items in the list you require there are 3 techniques availableįor small lists of less than 6 to 10 items you can use a simple Choose function ( Example 5.) Will give a list of Random dates between approximately and, with a mean of July 1 and standard deviation of 2 Months (60days) ( Example 4.) Will give a list of Random dates between 1 June 2010 and 30 June 2010 ( Example 2.)ĭon’t worry that the above formula (Example 1) can actually produce a, the Date function will happily convert that to 3 March 2005 ( Example 3.) Will give a list of Random dates between and ( Example 1.) Setting up Random Dates is a simple process using the Date function. ie: Refer to Example 4 in the above example files. The techniques described below are all shown with a worked example in the attached Examples File or the Excel 2003 ExampleĮach example is annotated below like ( Example 4.). The choice is really yours and should in part be based on what the data is being used for and how accurately it needs to reflect reality. In generating random lists you will need to choose if you want random data, random data within constraints or random with a distribution. Numbers: may include integers, decimals, negatives, extremely large numbers or all combinations ![]() Numbers: generally random or conforming to a fixed distribution or known trend Peoples Names, Maybe a large lists but are fixed by local rulesĪges, generally less than 80, never less than 0ĭates: Rarely before 1990 or 1900 in rare cases Ie: Country, State Names and Zip/Postal Codes, Maybe large lists but are fixed Real data displays a range of variability, but this variability is generally within ranges or distributions of ranges of results. This post will look at some options for setting up Dummy Data using Excels Random functions. Using collected or known data is the best when developing Excel models, but from time to time this may not be available when you are developing your model. Dummy Data – How to use the Random Functions
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