Multiple true condition in ifelse command

Question

In R we use ifelse(test, yes, no) command. The problem which i am facing is if a codiation comes out to be true i need to perform various statement, for example

ifelse(fp$month==1,(fp$sum(sales_1),fp$sum(sales_2)),0)

So I am giving two condition if fp$month = 1.those conditions are sum(fp$sales_1),sum(fp$sales_2), but R is recognising second comma. How to give multiple true condiations?

the example is

a <- "01" 
b <- c(1,2,3,4,5,6) 
c <- c(12,13,1234,1334,23) 
d <- ifelse(a=="01",(sum(b),sum(c)),0)

here i want if the "a" value is "01" then i want sum of vector b and c. but i am getting error :-

Error: unexpected ',' in "d <- ifelse(a=="01",(sum(b),"_

The expected output is :- [1] 21 2616

May be you need `rep` i.e. `ifelse(rep(a,2)=='01', c(sum(b), sum(c)), 0)` — akrun, May 21 '15 at 08:33

score 0 · Answer 1 · answered Nov 08 '16 at 21:30

0

You can use the & ('and') statement. You also need to alocate the sum to the variable, like this:

a <- "01" 
b <- c(1,2,3,4,5,6) 
c <- c(12,13,1234,1334,23) 
d <- ifelse(a=="01",( (b <- sum(b)) & (c <- sum(c)) ),0)

answered Nov 08 '16 at 21:30

cirofdo

1,074
6
22

score -2 · Accepted Answer · answered May 21 '15 at 08:46

-2

This works:

a <- "01" 
ifelse(a=="01", d <- c(sum(b),sum(c)), d <- 0)
d
#[1]   21 2616

a <- "02"
ifelse(a=="01", d <- c(sum(b),sum(c)), d <-0)
d
#[1] 0

answered May 21 '15 at 08:46

Pierre Lapointe

16,017
2
43
56

1

Don't use `ifelse` like this. It's intended for vector input. Use `d <- if(a=="01") c(sum(b),sum(c)) else 0` instead. – Roland May 21 '15 at 09:17
Why not submit this as an answer, @Roland? – tumultous_rooster Aug 19 '15 at 22:53

Multiple true condition in ifelse command

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