Thanks all. you guys are really helpful.
On Fri, Mar 22, 2013 at 2:48 PM, peter dalgaard wrote:
> What Bill says, plus the fact that the default handling of logicals in
> modelling is to convert them to factors and then use treatment contrasts,
> which will effectively give you the right indica
What Bill says, plus the fact that the default handling of logicals in
modelling is to convert them to factors and then use treatment contrasts, which
will effectively give you the right indicator variables automagically (This in
contrast to SAS where you can confuse yourself by declaring a 0/1
I would use a logical variable, with values TRUE and FALSE, instead
of a numeric indicator. E.g., I find the following easier to follow
bL <- ABS==1 | DEFF==1
if (any(bL)) { do.this() }
than
bN <- ifelse(ABS == 1 | DEFF == 1, 1, 0)
if (any(bN == 1)) { do.this() }
The latter leaves
On 03/21/2013 02:08 PM, Jorge I Velez wrote:
Try
ifelse(ABS ==1 | DEFF == 1, 1, 0)
or
as.numeric(ABS | DEFF)
(faster?)
Göran
HTH,
Jorge.-
On Fri, Mar 22, 2013 at 12:02 AM, Tasnuva Tabassum wrote:
I have two indicator variables ABS and DEFF. I want to create another
indicator variabl
Try
ifelse(ABS ==1 | DEFF == 1, 1, 0)
HTH,
Jorge.-
On Fri, Mar 22, 2013 at 12:02 AM, Tasnuva Tabassum wrote:
> I have two indicator variables ABS and DEFF. I want to create another
> indicator variable which will take value 1 if either ABS=1 or DEFF=1.
> Otherwise, it will take value 0. How c
5 matches
Mail list logo
