Hi All,

I have the data like this :

>sample <- read.csv(file="sample.csv",sep=",",header=TRUE)
> sample

     stdate Domain    sex age Login
1  01/11/09    xxx FeMale  25     2
2  01/11/09    xxx FeMale  35     4
3  01/11/09    xxx   Male  18    30
4  01/11/09    xxx   Male  31     3
5  02/11/09    xxx   Male  32    11
6  02/11/09    xxx   Male  31     1
7  02/11/09    xxx FeMale  29     1
8  02/11/09    xxx FeMale  23     5
9  03/11/09    xxx FeMale  25     9
10 03/11/09    xxx FeMale  35     6
11 03/11/09    xxx   Male  18     3
12 03/11/09    xxx   Male  31     0
13 04/11/09    xxx   Male  32    25
14 04/11/09    xxx   Male  31     1
15 04/11/09    xxx FeMale  29     0
16 01/11/09    yyy FeMale  25     2
17 01/11/09    yyy FeMale  35     4
18 01/11/09    yyy   Male  18    30
19 01/11/09    yyy   Male  31     3
20 02/11/09    yyy   Male  32    11
21 02/11/09    yyy   Male  31     1
22 02/11/09    yyy FeMale  29     1
23 02/11/09    yyy FeMale  23     5
24 03/11/09    yyy FeMale  25     9
25 03/11/09    yyy FeMale  35     6
26 03/11/09    yyy   Male  18     3
27 03/11/09    yyy   Male  31     0
28 04/11/09    yyy   Male  32    25
29 04/11/09    yyy   Male  31     1
30 04/11/09    yyy FeMale  29     0

I need to fine the average login on 01/11/09 and 02/11/09 etc... like below

stdate          AverageLogin
01/11/09          9.75
02/11/09           .....
03/11/09          .......

How do I find the average Login based on date?

Thanks for your time.
Mohan L

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