How to evaluate any significant difference using Minitab

Hi,

I intend to use Minitab, but before using, i would like to know the following (what i can not get from the available videos):
My intension is to evaluate a process - how much an actual process differs from the master measurement. Every measurement has the following format:

------------------------------
Measurement 1:

x ............ ... y
300 ............ 50
350 ............ 55
400 ............ 60

------------------------------
Measurement 2:

x ............ ... y
300 ............ 52
350 ............ 52
400 ............ 60

------------------------------

It means the the collumn X is the same all the time and i need to evaluate y range, how much differs from the master measurement, how good a repeatability is.

My question:
Which module (SPC, DOE ..) would be the best to observe and evaluate deviations ? The mentioned format is stored in a xls file for every measurement.

Many thanks for the replies

Regards

P.

 

Check the RESOURCE section of this forum. Beverly has published quite a number of Gage R&R tools.

 

Please look at the attached picture - pic1.png
All measurements are being represented by several (200 pcs) of XY coordinates. So it means that the master curve or the “W“ master (pic1.png) measurement is divided into 200 pieces and all the X,Y coordinates are written in XY format. From every following measurement exists a XY file written in xls.
X-Values are the same in each xls file - in range from 100 to 300. Y-Values are changing and these changes i would like to check, record and evaluate.
Every xls file looks like on the attached - pic2.png.

In whole xls files are important the only 3 values – namely X and Y coordinates of “3 peaks“. From the picture is for example the first peak on the muster curve at X=150, Y=2, the second at X=200, Y=7,5 and the third at X=250, Y=2 - please look at the pic1.png

But.. the first "master" peak needs to be compared with the first peak of measured curve. So it means that both coordinates (X and Y) are changeable. Not only Y coordinate, but also X coordinate. So before the evaluation, three peaks need to be found and as next to compare these peaks, whether they lie within the tolerance zone.
I really have no idea how it could be done. Whether to find these 3 peaks in Excel with helf of MIN or MAX functions and then proceed the data to Minitab or the program itself has some appropriate feature for it.

Many thanks for your help.