Try putting your data.frame (train_na) as argument to the data=
parameter and then in the formula put the actual variable names but
without the train_na$ prefix.
On 06/11/2017 13:45, Meghna Govil via R-help wrote:
Thanks David. Could you show me how to do that in my example ?
Thanks,
Meghna
On Nov 6, 2017, at 12:58 AM, David Winsemius <dwinsem...@comcast.net> wrote:
You should stop trying to use matrices on the RHS and using separate vectors to
Surv. Instead use a data argument and have the names in your formula refer to
column names.
—
David
Sent from my iPhone
On Nov 5, 2017, at 7:21 PM, Meghna Govil via R-help <r-help@r-project.org>
wrote:
Hi - Below is my code and then the error when I run the last line.
time_np <- train1_na$tte
event_np <- train1_na$censored
X_np <- cbind(
train1_na$AMT,
train1_na$DISCOUNT_AMT,
train1_na$high_price_pcnt,
train1_na$EM_RECEIVED,
train1_na$DM_RECEIVED,
train1_na$TXN_WITH_RINGCODE,
train1_na$WEB,
train1_na$clearance_pcnt,
train1_na$bts_pcnt,
train1_na$sales_pcnt,
train1_na$holiday_pcnt,
train1_na$TXN,
train1_na$REDEEMED_REWARDS
)
# Kaplan-Meier non-parametric analysis
kmsurvival_np <- survfit(Surv(time_np,event_np) ~ X_np)
Error in `[.default`(y, who, 1) : (subscript) logical subscript too long
Any ideas?
I have tried several things and still get this error.
Thanks,
Meghna
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Michael
http://www.dewey.myzen.co.uk/home.html
______________________________________________
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