[R] Exclude selected values for columns in frames

[joseclaudio.faria]

Dear list,

I'm needing submit values (V1 = 8,6,4,3,1,2,9) (Id = 2:8) of a data.frame
(DF), like below

Id  V1  V2 ...
1    0    1  ...
2    8    10  ...
3    6    2  ...
4    4    4  ...
5    3    7  ...
6    1    8  ...
7    2    6  ...
8    9    7  ...
9    6    1  ...
10  5    4  ...

to selection (>=2 and <8) for remanescents like below:

Id  V1  V2 ...
1     .    1  ...
2     .    10  ...
3    6    2  ...
4    4    4  ...
5    3    7  ...
6     .     8  ...
7    2    6  ...
8     .     7  ...
9    6    1  ...
10  5    4  ...

or

Id  V1  V2 ...
1     .      .  ...
2     .      .  ...
3    6    2  ...
4    4    4  ...
5    3    7  ...
6     .      .  ...
7    2    6  ...
8     .     7  ...
9    6     .  ...
10  5    4  ...

How to do this betther with R? Is there a command to compare all to same
time?

I would be very thankful.

Yours sincerly

Att.

José Cláudio Faria
UESC/DCET
Brasil
73-634.2779
joseclaudio.faria at terra.com.br
jc_faria at uol.com.br