R help - Nov 2013 - How to replace NA's data with some value

Hi all,

I have a data set with missing value. I would like to estimate those
missing value by using normal ratio method.
Below is part of my data:

      AS   BL Serdang  Jhr   Phg  Target station
       0    0.0    12.8      0.0  23.7  0.0
       6    0.0    81.7      0.2  0.0   NA
       0    1.5    60.9      0.0  0.0   15.5
       1   13.0    56.8     17.5 32.8  6.4
       4     3.0    66.4      2.0  0.3   NA

Now I want to replace those NA's,  with the estimation values by using this
formula:
weight$v6
<-(weight1*AS)+(weight2*BL)+(weight3*Serdang)+(weight4*Jhr)+(weight5*Phg);
Targetstation

but I still could not replace the NA's. My problem is, how do I replace
those NA's with another value?

Thank you so much for your help and attention.

Regards,
Dila

	[[alternative HTML version deleted]]

Dila, take a look at this:

http://r.789695.n4.nabble.com/How-to-replace-all-lt-NA-gt-values-in-a-data-frame-with-another-not-0-value-td2125458.html

	Does that help?
	Best,
	Collin.

On Tue, 12 Nov 2013, dila radi wrote:
> Hi all,
>
> I have a data set with missing value. I would like to estimate those
> missing value by using normal ratio method.
> Below is part of my data:
>
>       AS   BL Serdang  Jhr   Phg  Target station
>        0    0.0    12.8      0.0  23.7  0.0
>        6    0.0    81.7      0.2  0.0   NA
>        0    1.5    60.9      0.0  0.0   15.5
>        1   13.0    56.8     17.5 32.8  6.4
>        4     3.0    66.4      2.0  0.3   NA
>
> Now I want to replace those NA's,  with the estimation values by using
this
> formula:
> weight$v6
>
<-(weight1*AS)+(weight2*BL)+(weight3*Serdang)+(weight4*Jhr)+(weight5*Phg);
> Targetstation
>
> but I still could not replace the NA's. My problem is, how do I replace
> those NA's with another value?
>
> Thank you so much for your help and attention.
>
> Regards,
> Dila
>
> 	[[alternative HTML version deleted]]
>
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