A Minitab worksheet can contain more than 10,000,000 rows, but "only" the first 10,000,000 are shown.
To get a column with 10,000,000 times "0" first and afterwards patterned data starting from 0.5 to 5,000,000 with an increment of 0.5 you can stack some columns which contain up to 10,000,000 values. A more convenient way than the menu (Calc > Make Patterned Data > Simple Set of Numbers like Miner mentioned) is to use the Command Line Editor (opens with CTRL + L, see attached screenshot), paste the following code and click on "Submit"
1( 0 : 0 / 1 )10000000
1( 0.5 : 4999999 / 0.5 )1
1( 4999999.5 : 5000000 / 0.5 )1
Column "c1" contains 10,000,000 times "0", column "c2" patterned data from 0.5 to 4,999,999 (9,999,998 values total) and column "c3" has two values (4,999,999.5 and 5,000,000). The "make patterned data" command will only work properly up to 9,999,999 values if an increment is set (like 0.5).
No we have 20,000,000 values in the worksheet in three different columns and want to stack them into one columne (here: column "c4"). This could be done via
Data > Stack > Columns
or with the following code lines in the Command Line Editor:
The worksheet doesn't show all the 20,000,000 values, but they are stored. Just click on the "i" button (see attached screenshot) or count the non-missing values in column c4
Stat > Basic Statistics > Show Descriptive Statistics
or with the Command Line Editor
I'm not sure if Minitab will work with 78,000,000 values properly. Maybe you can post your experience with your huge data set?