Displaying 5 results from an estimated 5 matches for "islogical".
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illogical
2017 Oct 09
1
Using response variable in interaction as explanatory variable in glm crashes R
...bles, not, e.g., when
transformed to integer.
The C code in src/library/stats/src/model.c tries to eliminate
occurances of the LHS of the formula from the RHS when building
the model matrix and it does work fine in the integer case.
Part of the culprit code may be this (from line 717),
with the isLogical(.) which in our case, shifts the pointer by
1 in the call to firstfactor() :
int adj = isLogical(var_i)?1:0;
// avoid overflow of jstart * nn PR#15578
firstfactor(&rx[jstart * nn], n, jnext - jstart,
REAL(contrast), nrows(contrast),
ncols(contrast), INTEGER(var_i)+adj...
2017 Oct 06
2
Using response variable in interaction as explanatory variable in glm crashes R
The following code crashes R (I know I shouldn't try to estimate such a
model; this was a bug in some code of mine). I also tried with R-devel;
same result.
tab <- structure(list(dob_day = c(FALSE, FALSE, FALSE, FALSE, TRUE,
TRUE, TRUE, TRUE), dob_mon = c(FALSE, FALSE, TRUE, TRUE, FALSE,
FALSE, TRUE, TRUE), dob_year = c(FALSE, TRUE, FALSE, TRUE, FALSE,
TRUE, FALSE, TRUE), n =
2010 Feb 07
1
Out-of-sample prediction with VAR
Good day,
I'm using a VAR model to forecast sales with some extra variables (google
trends data). I have divided my dataset into a trainingset (weekly sales +
vars in 2006 and 2007) and a holdout set (2008).
It is unclear to me how I should predict the out-of-sample data, because
using the predict() function in the vars package seems to estimate my
google trends vars as well. However, I want
2005 Nov 18
1
using a factor as col argument in plot:
Dear R core team
Using the following code produces an empty plot (similar
to col = NA):
> plot(1:9, col = factor(rep(1:3,3), labels = c("red", "blue", "black")))
My question: Shouldn't one get at least a warning (or an error)
if one tries to use a factor as col argument?
Thanks for an answer.
Regards,
Christoph Buser
2006 Apr 23
1
call queue problems
Hi everyone
I am having problems with my call queue
We currently run a customer care call center which has attendants login
during the daytime. Customers who call the 'customer care line (a specific
number) always get routed to the cutomer care queue (called 124). After
hours, staffs of the Network operating center provide customer care services
for customers who call in after the last