Displaying 6 results from an estimated 6 matches for "agaricus".
2017 Oct 20
3
What exactly is an dgCMatrix-class. There are so many attributes.
Dear R list,
I came across dgCMatrix. I believe this class is associated with sparse
matrix.
I see there are 8 attributes to train$data, I am confused why are there so
many, some are vectors, what do they do?
Here's the R code:
library(xgboost)
data(agaricus.train, package='xgboost')
data(agaricus.test, package='xgboost')
train <- agaricus.train
test <- agaricus.test
attributes(train$data)
Where is the data, is it in $p, $i, or $x?
Thank you very much!
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2017 Oct 20
4
What exactly is an dgCMatrix-class. There are so many attributes.
...oes appears
> to be magical to one such as I.
>
> >
> > I see there are 8 attributes to train$data, I am confused why are there
> so
> > many, some are vectors, what do they do?
> >
> > Here's the R code:
> >
> > library(xgboost)
> > data(agaricus.train, package='xgboost')
> > data(agaricus.test, package='xgboost')
> > train <- agaricus.train
> > test <- agaricus.test
> > attributes(train$data)
> >
>
> I got a bit of an annoying surprise when I did something similar. It
> appearred...
2017 Oct 20
0
What exactly is an dgCMatrix-class. There are so many attributes.
...anything I write. Much of what the Matrix package does appears to be magical to one such as I.
>
> I see there are 8 attributes to train$data, I am confused why are there so
> many, some are vectors, what do they do?
>
> Here's the R code:
>
> library(xgboost)
> data(agaricus.train, package='xgboost')
> data(agaricus.test, package='xgboost')
> train <- agaricus.train
> test <- agaricus.test
> attributes(train$data)
>
I got a bit of an annoying surprise when I did something similar. It appearred to me that I did not need to load the...
2017 Oct 20
0
What exactly is an dgCMatrix-class. There are so many attributes.
...ch as I.
>>
>> >
>> > I see there are 8 attributes to train$data, I am confused why are there
>> so
>> > many, some are vectors, what do they do?
>> >
>> > Here's the R code:
>> >
>> > library(xgboost)
>> > data(agaricus.train, package='xgboost')
>> > data(agaricus.test, package='xgboost')
>> > train <- agaricus.train
>> > test <- agaricus.test
>> > attributes(train$data)
>> >
>>
>> I got a bit of an annoying surprise when I did somethin...
2017 Oct 21
0
What exactly is an dgCMatrix-class. There are so many attributes.
...>> > I see there are 8 attributes to train$data, I am confused why are there
>> so
>> > many, some are vectors, what do they do?
>> >
>> > Here's the R code:
>> >
>> > library(xgboost)
>> > data(agaricus.train, package='xgboost')
>> > data(agaricus.test, package='xgboost')
>> > train <- agaricus.train
>> > test <- agaricus.test
>> > attributes(train$data)
>> >
>>
>> I got a bit of an annoying...
2017 Oct 21
1
What exactly is an dgCMatrix-class. There are so many attributes.
...gt;
>>>> I see there are 8 attributes to train$data, I am confused why are there
>>> so
>>>> many, some are vectors, what do they do?
>>>>
>>>> Here's the R code:
>>>>
>>>> library(xgboost)
>>>> data(agaricus.train, package='xgboost')
>>>> data(agaricus.test, package='xgboost')
>>>> train <- agaricus.train
>>>> test <- agaricus.test
>>>> attributes(train$data)
>>>>
>>>
>>> I got a bit of an annoying sur...