Hello,
When i generate data with the code below there appear NA as part of the
generated data, i prefer to have zero (0) instead of NA on my data.
Is there a command i can issue to replace the NA with zero (0) even if it is after generating the data?
Thank you
?Surv
time2: ending time of the interval for interval censored or counting
process data only
and
w=Surv(r,t,type="interval2")
Warning message:
In Surv(r, t, type = "interval2") :
Invalid interval: start> stop, NA created
=> r needs to be greater that t.
Just ***DON'T***. NAs and zeroes are completely different concepts.
You will simply confuse everybody including yourself. cheers,
Rolf Turner
I can only agree with that.
On 12-05-03 05:18 PM, Steve Lianoglou wrote:
Also,
On Thu, May 3, 2012 at 1:57 PM, J Toll<jct...@gmail.com> wrote:
On Thu, May 3, 2012 at 10:43 AM, Christopher Kelvin
<chris_kelvin2...@yahoo.com> wrote:
Is there a command i can issue to replace the NA with zero (0) even if it is
after generating the data?
Chris,
I didn't try your example code, so this suggestion is far more
general, but you might try something along the lines of:
x[which(is.na(x))]<- 0
Random note from left field: the call to `which` is unnecessary here.
-steve
set.seed(1)
r1=runif(10)
set.seed(2)
t=runif(10)
w=Surv(r,t,type="interval2")
w1=w
w1[is.na(w)] = 0
w1
[1] 0.00000000+ [0.37212390, 0.7023740] [0.57285336,
0.5733263]
[4] 0.00000000+ [0.20168193, 0.9438393] [0.89838968,
0.9434750]
[7] 0.00000000+ [0.66079779, 0.8334488] 0.00000000+
[10] [0.06178627, 0.5499837]
w2=w
w2[which(is.na(w2))] = 0
w2
[1] [0.00000000, 0.1848823] [0.37212390, 0.7023740] [0.57285336,
0.5733263]
[4] [0.00000000, 0.1680519] [0.20168193, 0.9438393] [0.89838968,
0.9434750]
[7] [0.00000000, 0.1291590] [0.66079779, 0.8334488] [0.00000000,
0.4680185]
[10] [0.06178627, 0.5499837]
Eloi
--
Eloi Mercier
Bioinformatics PhD Student, UBC
Paul Pavlidis Lab
2185 East Mall
University of British Columbia
Vancouver BC V6T1Z4
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