How to replace missing values of a variable with the mean of another variable.
For example:
Replace the missing values for V1 with the average V2 on V3,V4 and V5.
Something like
if missing(v1) then do;
v1 = mean(v2, v3, v4, v5);
end;
You can also use the COALESCE function, which makes for simpler code:
V1=coalesce(V1,mean(of v2-v5));
How to find missing value with the mean of V1 if V1 is numerical variable and V2,V3 & V4 are categorical variables ?
1. Have you tried the suggestions given?
If not, please do it and report.
2. So you want to calculate the average for numbers contained in character variables?
Hi Jagadish,
I need to replace the missing values for distance with mean of distance and group by carrier, origin and dest.
Please find the sample data below:
date | sched_dep_time | dep_time | sched_arr_time | arr_time | carrier | flight | tailnum | origin | dest | distance |
1/1/2013 | 515 | 517 | 819 | 830 | UA | 1545 | N14228 | EWR | IAH | 1400 |
1/1/2013 | 529 | 533 | 830 | 850 | UA | 1714 | N24211 | LGA | IAH | 1416 |
1/1/2013 | 540 | 542 | 850 | 923 | AA | 1141 | N619AA | JFK | MIA | . |
1/1/2013 | 545 | 544 | 1022 | 1004 | B6 | 725 | N804JB | JFK | BQN | 1576 |
1/1/2013 | 600 | 554 | 837 | 812 | DL | 461 | N668DN | LGA | ATL | 762 |
1/1/2013 | 558 | 554 | 728 | 740 | UA | 1696 | N39463 | EWR | ORD | 719 |
1/1/2013 | 600 | 555 | 854 | 913 | B6 | 507 | N516JB | EWR | FLL | 1065 |
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