[R] Multiple Conditional Statement

[Bert Gunter]

"=" != "==" .

-- Bert

On Tue, Apr 24, 2012 at 8:18 AM, Vincy Pyne <vincy_pyne at yahoo.ca> wrote:
> Dear R helpers,
>
> I have two separate data frames. In one data frame the transaction data is stored and the other data frame has exchange rates stored say rate_A and rate_B where rate_A and rate_B are series of rates.
>
> rate_A and rate_B are properly defined and I am reading them through the appropriate dataframe. (Actually I have a different datasets and to try to keep things simple, I am defining it as above).
>
> I have BUY or SELL transaction (defined under the column head Type in transactions dataframe) and depending on the type of transaction, I need to define the rates.
>
> So if the type is BUY, rate_1 = rate_A and rate_2 = rate_B and if the type is SELL, rate_1 = rate_B and rate_2 = rate_A.
>
> To begin with I have only one transaction in my data frame (I am not aware if it is BUY or SELL transaction)
>
>
> Thus, I tried
>
>
> if(Type == "Buy")
>
> {rate_1 = rate_A & rate_2 = rate_B} else {rate_1 = rate_B & rate_2 = rate_A}
>
> I get following error
>
> Error in rate_A & rate_2 = rate_B
>   could not find function "&<-"
>
> How do I define multiple conditional statements?
>
> Kindly guide.
>
> Vincy
>
>
>        [[alternative HTML version deleted]]
>
>
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-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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