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What's the difference between VSIIndex_avg and VSIIndex_Calculation?

  • gbreit
  • gbreit's Avatar Topic Author
26 Feb 2013 07:16 #822

As the title. One is weighted before calculation and another is not?

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26 Feb 2013 08:56 #823

Hi GB,

VSIIndex_min, VSIIndex_avg and VSIIndex_max is the minimal/average/maximal sum of calculated values of the raw data line for a given session_count.

VSICalculation is the average of response times from four consecutive data groups of which each are made of the same session counts, minus the top / bottom stuff, versus the VSIIndex_avg, which is just average of the calculated values for one session value.

I hope this makes sense to you and if not please let me know.

Regards,

Omar

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  • gbreit
  • gbreit's Avatar Topic Author
27 Feb 2013 01:55 #825

Hi Omar,
What do you mean for "four consecutive data groups"? I am not quite understand it? Could you explain it? Thanks.


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28 Feb 2013 11:07 #828

For the “average of response times from 4 consecutive data groups of which each are made of the same session counts”:
in the RAW data we have for example 22 data lines with these session_count numbers:

Session_count
11
11
11
11
13
13
13
13
14
14
14
14
17
17
17
17
17
18
18
18
19

So we have these unique session_count numbers:

11
13
14
17
18
19

For the purpose of calculating the VSI Index Calculation we take the 4 consecutive data groups. Let’s start with session count 11 and take the next 3 session_count numbers:

11
13
14
17

And now to calculate VSI index calculation we have to take all the raw data lines which have these session_count numbers and calculate the VSIIndex for the line.

I will contact you by email and zoom-in to your questions in detail.

Regards,

Omar

PS, i suggest not to modify the Analyzer preferences.

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