Solved: Averages: Remove top and bottom 10% - Qlik Community

Anonymous · ‎2017-06-15

I have the below script that calculates the averages of business days and calendar days. The problem, I have outlier values that are skewing results.

Can I:

Remove top 10% from the average?

Remove top 10% and bottom 10% from the average?

LOAD

D AS CONTACT_D,
Avg([FIRST_CONTACT_CAL_DAYS])AS Avg_FirstPhoneContact_Days,
Avg([FIRST_CONTACT_WK_DAYS])AS Avg_FIRST_CONTACT_WK_DAYS

FROM $(vPath_QVDs)MainTable.qvd(qvd)

Where 1=1
AND NOT IsNull(FIRST_CONTACT_CAL_DAYS)
AND NOT IsNull(FIRST_CONTACT_WK_DAYS)
AND START_DT > Addmonths(today(),-12)

GROUP BY
D

sunny_talwar · ‎2017-06-15

Should be simple

Avg({<ASSIGNED_STATUS = {'NEWLY ASSIGNED MEMBER'}>} Aggr(

If(Only({<ASSIGNED_STATUS = {'NEWLY ASSIGNED MEMBER'}>} FIRST_CONTACT_CAL_DAYS) >=

Fractile({<ASSIGNED_STATUS = {'NEWLY ASSIGNED MEMBER'}>} TOTAL <PROGRAM> FIRST_CONTACT_CAL_DAYS, 0.10) AND

Only({<ASSIGNED_STATUS = {'NEWLY ASSIGNED MEMBER'}>} FIRST_CONTACT_CAL_DAYS) <=

Fractile({<ASSIGNED_STATUS = {'NEWLY ASSIGNED MEMBER'}>}TOTAL <PROGRAM> FIRST_CONTACT_CAL_DAYS, 0.90),

FIRST_CONTACT_CAL_DAYS), PROGRAM, id))

View solution in original post

Anonymous · ‎2017-06-15

Perhaps create an indicator on my source data to capture top and bottom 10%

sunny_talwar · ‎2017-06-15

May be use Fractile functions to remove Top 10 and Bottom 10 from the overall observation and then use the remaining data to calculate your average?

Anonymous · ‎2017-06-15

I have two example and neither are working. Can you help with the syntax?

//,AVG({<D = {"> $(=Fractile(FIRST_CONTACT_CAL_DAYS,0.20)) <= $(=Fractile(FIRST_CONTACT_CAL_DAYS,0.40))"}>} DISTINCT D)

//avg(if([FIRST_CONTACT_CAL_DAYS] > aggr(NODISTINCT fractile(FIRST_CONTACT_CAL_DAYS, 0.1), D ) and [FIRST_CONTACT_CAL_DAYS] < aggr(NODISTINCT fractile(FIRST_CONTACT_CAL_DAYS, 0.9), CLT_CLT_PGMID ),D))

sunny_talwar · ‎2017-06-15

Will be difficult without some data to work with... Also, is this something you want in the script or front end?

Anonymous · ‎2017-06-15

I get some data

Anonymous · ‎2017-06-15

See attached sample data

sunny_talwar · ‎2017-06-15

What is the number you expect to see here?

Anonymous · ‎2017-06-15

I'm trying to capture the average column

FIRST_CONTACT_CAL_DAYS but want to exclude the top and bottom 10% to exclude the outliers.

sunny_talwar · ‎2017-06-15

Is 0 an outlier you would want to exclude? Because it might be one of the bottom 10%?