R help - Oct 2012 - How to write out this regression equation in R?

For example: 

How to make R write out: 

Balance = 2 + 3 * IntGDP + 5 * IntUnemployment + 0.3 * d1

from the table below:

Balance         Intercept       IntGDP  GDPNum  IntUnemployment 
IntInflation    d1      d2      d3
30000           2               3                       5  0.3  0       0 

and if I have 20 rows, how to make it a batch process?

thanks

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> How to make R write out: 
> 
> Balance = 2 + 3 * IntGDP + 5 * IntUnemployment + 0.3 * d1
> 
> from the table below:
> 
> Balance         Intercept       IntGDP  GDPNum  IntUnemployment 
> IntInflation    d1      d2      d3
> 30000           2               3                       5  
> 0.3  0       0 

Maybe ?sprintf would help?

And if you wrap that in a function that takes a vector, using apply() on the
table would give you one string per row,

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But sprintf is itself vectorized. If you give it vectors, it returns vectors. So
you could obtain that apply-result more efficiently by passing a bunch of column
vectors of data. There happens to be a convenient object called a data frame
that holds a bunch of similar-length vectors.

DF <- data.frame( m=c(1,2), b=c(-3,4) )
result <- sprintf( "y=(%d)*x+(%d)", DF$m, DF$b)
cat(paste(result, collapse="\n"))

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S Ellison <S.Ellison at LGCGroup.com> wrote:
> 
>
>> How to make R write out: 
>> 
>> Balance = 2 + 3 * IntGDP + 5 * IntUnemployment + 0.3 * d1
>> 
>> from the table below:
>> 
>> Balance         Intercept       IntGDP  GDPNum  IntUnemployment 
>> IntInflation    d1      d2      d3
>> 30000           2               3                       5  
>> 0.3  0       0 
>
>
>Maybe ?sprintf would help?
>
>And if you wrap that in a function that takes a vector, using apply()
>on the table would give you one string per row,
>
>*******************************************************************
>This email and any attachments are confidential. Any
>use...{{dropped:8}}
>
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