Integrated R Script error: cannot allocate vector of size 838,6 MB

Hello

I am using the linear model in Scripts embedded in R. In the linear model, there will be a column that depends on 7 selected variables. The table around a 115335 record. I get an error when I fire the select below saying query ' error RQuery: cannot allocate vector size Mo 838,6 '.

Is there a limit on the number of records to move for prediction?

My script looks like in below:

Start

sys.rqScriptDrop ('OOS_LD_Prediction');

sys.rqScriptCreate ('OOS_LD_Prediction',

"{function (dat, datastore_name)}

MOD <-lm (OOS_LOST_DOLLARS ~ DAY_OF_WEEK + STORE + PEP_BRAND + ITM_VELOCITY_CLUSTER + STR_VELOCITY_CLUSTER + OOS_REASON + DAYS_OF_SUPPLY, dat)

PRD <-predict (mod, dat = newdata)

PRD [As.Integer (rownames (PRD))] <-prd

RES <-cbind (dat, PRED = prd)

}');

end;

/

Select *.

table (rqTableEval)

cursor (select day_of_week, store, pep_brand, itm_velocity_cluster, str_velocity_cluster, oos_reason, days_of_supply, oos_lost_dollars

of oos_aggr_fact).

cursor (1 select as "ore.connect", "LP" as "datastore_name" of the double).

' select day_of_week, store, pep_brand, itm_velocity_cluster, str_velocity_cluster, oos_reason, days_of_supply, oos_lost_dollars, 1 PRED

to oos_aggr_fact ',

'OOS_LD_Prediction'));

The error is generated:

ORA - 20000:RQuery error

Error: cannot allocate vector of size 838,6 MB

ORA-06512: at "RQSYS. RQTABLEEVALIMPL', line 112

ORA-06512: at "RQSYS. RQTABLEEVALIMPL', line 109

20000.00000 - '%s '.

Can someone help me with this please?

Namrata,

The key to the problem is STORE with 1408 distinct values. For STORING data, it is often that you want to predict a value for a particular STORE (in which case build you models of 1408), or group stores in regions (e.g., by State, County or country) and to build models on data associated with each region.

To build 1 model by store, you can do this by using ore.groupApply.

You can also build a map of the STORE of the REGION and use ore.groupApply by REGION.

When you score, you select the template for the store in particular or the region.

Mark

Tags: Business Intelligence

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