Minitab

[Guruthilak]

Hello,

Has anyone used Minitab? If yes

How does Minitab calcultes the standard deviation (within) for a set if given values.

I am developing an apploication for calculating the SPC parameters, and becasue of the diffference between the standard deviation generated by my application and minitab, unable to proceed further.

Attached vi conatins sample of data point. If anyone has any clue please respond

[hk04]

I don't know what MINITAB is using but I am using Apache Commons Math JAVA Library which is matching with the calculations of Standard Deviation in Minitab.

[Minions]

It gets a little involved in how Minitab calculates the within.  See the link: Minitab Stdev(within)