How to use RangeAvg in back-end script

[asifshah]

I want to generate average values for the past 6 months

example table :

LOAD * INLINE [
Zone, Month, Value
East, Jan-2019, 98823
East, Feb-2019, 98372
East, Mar-2019, 47732
East, Apr-2019, 92838
East, May-2019, 92939
East, Jun-2019, 8822
East, July-2019, 991
East, Aug-2019, 13124
East, Sep-2019, 2324
East, Oct-2019, 231
East, Nov-2019, 1234
East, Dec-2019, 32442
];

Using the below function, it gives proper values,

RangeAvg(above(total sum(Value),0,5))

Output:

Zone	Month	Value	RangeAvg of Value
East	Apr-2019	92838	92838
East	Aug-2019	13124	52981
East	Dec-2019	32442	46134.66667
East	Feb-2019	98372	59194
East	Jan-2019	98823	67119.8
East	July-2019	991	48750.4
East	Jun-2019	8822	47890
East	Mar-2019	47732	50948
East	May-2019	92939	49861.4
East	Nov-2019	1234	30343.6
East	Oct-2019	231	30191.6
East	Sep-2019	2324	28892

However the same function doesn't work in back-end script.

Can anyone help me replicate this scenario in back-end?

Thanks.

[marcus_sommer]

Above() is an UI function and doesn't work within the script. With previous() and peek() there are interrecord-functions which could be used in the script - but they could pick only a single value and not a range of values. This means you need to add multiple ones - this may (with the help of an additionally variable) look like:

set eP = "peek('Value', $1)";

table:
load *, rangeavg(Value, $(eP(-1)), $(eP(-2)), $(eP(-3)), $(eP(-4))) as AVG
resident Source order by Month;

Important is that you sort the (resident) load appropriate and if there are multiple Zone's or other relevant fields available you need some if-logic to include to consider them (the more circumstances needs to be catched the more benefit has the above created variable to keep the statement small and clear).

- Marcus

[Brett_Bleess]

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Regards,
Brett