<s>
RevoScaleR	B-Application
is	O
a	O
machine	O
learning	O
package	O
in	O
R	B-Language
created	O
by	O
Microsoft	O
.	O
</s>
<s>
It	O
is	O
available	O
as	O
part	O
of	O
Machine	O
Learning	O
Server	O
,	O
Microsoft	O
R	B-Language
Client	O
,	O
and	O
Machine	O
Learning	O
Services	O
in	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
2016	O
.	O
</s>
<s>
The	O
package	O
contains	O
functions	O
for	O
creating	O
linear	B-Algorithm
model	I-Algorithm
,	O
logistic	O
regression	O
,	O
random	B-Algorithm
forest	I-Algorithm
,	O
decision	B-Algorithm
tree	I-Algorithm
and	O
boosted	B-Algorithm
decision	I-Algorithm
tree	I-Algorithm
,	O
and	O
K-means	B-Algorithm
,	O
in	O
addition	O
to	O
some	O
summary	O
functions	O
for	O
inspecting	O
and	O
visualizing	O
data	O
.	O
</s>
<s>
It	O
has	O
a	O
Python	B-Language
package	O
counterpart	O
called	O
revoscalepy	B-Application
.	O
</s>
<s>
Another	O
closely	O
related	O
package	O
is	O
MicrosoftML	O
,	O
which	O
contains	O
machine	O
learning	O
algorithms	O
that	O
RevoScaleR	B-Application
does	O
not	O
have	O
,	O
such	O
as	O
neural	B-Architecture
network	I-Architecture
and	O
SVM	B-Algorithm
.	O
</s>
<s>
In	O
June	O
2021	O
,	O
Microsoft	O
announced	O
to	O
open	O
source	O
the	O
RevoScaleR	B-Application
and	O
revoscalepy	B-Application
packages	O
,	O
making	O
them	O
freely	O
available	O
under	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
<s>
Many	O
R	B-Language
packages	O
are	O
designed	O
to	O
analyze	O
data	O
that	O
can	O
fit	O
in	O
the	O
memory	O
of	O
the	O
machine	O
and	O
usually	O
do	O
not	O
make	O
use	O
of	O
parallel	O
processing	O
.	O
</s>
<s>
RevoScaleR	B-Application
was	O
designed	O
to	O
address	O
these	O
limitations	O
.	O
</s>
<s>
The	O
functions	O
in	O
RevoScaleR	B-Application
orientate	O
around	O
three	O
main	O
abstraction	O
concepts	O
that	O
users	O
can	O
specify	O
to	O
process	O
large	O
amount	O
of	O
data	O
that	O
might	O
not	O
fit	O
in	O
memory	O
and	O
exploit	O
parallel	O
resources	O
to	O
speed	O
up	O
the	O
analysis	O
.	O
</s>
<s>
It	O
could	O
be	O
"	O
local	O
"	O
(	O
on	O
the	O
client	O
machine	O
)	O
or	O
"	O
remote	O
"	O
(	O
on	O
a	O
data	O
platform	O
such	O
as	O
a	O
SQL	B-Language
server	O
,	O
or	O
Spark	B-Language
)	O
.	O
</s>
<s>
There	O
are	O
various	O
data	O
sources	O
available	O
in	O
RevoScaleR	B-Application
,	O
such	O
as	O
text	O
data	O
,	O
Xdf	O
data	O
,	O
in-SQL	O
data	O
,	O
and	O
a	O
spark	B-Language
dataframe	O
.	O
</s>
<s>
For	O
example	O
,	O
if	O
the	O
compute	O
context	O
is	O
set	O
to	O
SQL	B-Language
server	O
,	O
then	O
the	O
only	O
data	O
source	O
one	O
can	O
use	O
would	O
be	O
an	O
in-SQL	O
data	O
source	O
.	O
</s>
<s>
Analytic	O
functions	O
in	O
RevoScaleR	B-Application
takes	O
in	O
data	O
source	O
object	O
,	O
a	O
compute	O
context	O
,	O
and	O
the	O
other	O
parameters	O
needed	O
to	O
build	O
the	O
specific	O
model	O
,	O
such	O
as	O
formula	O
for	O
the	O
logistic	O
regression	O
or	O
the	O
number	O
of	O
trees	O
in	O
a	O
decision	B-Algorithm
tree	I-Algorithm
.	O
</s>
<s>
The	O
package	O
is	O
mostly	O
meant	O
to	O
be	O
used	O
with	O
a	O
SQL	B-Language
server	O
or	O
other	O
remote	O
machines	O
.	O
</s>
<s>
It	O
cannot	O
be	O
easily	O
installed	O
such	O
as	O
by	O
running	O
"	O
install.packages("RevoScaleR" )	O
"	O
like	O
most	O
open	O
source	O
R	B-Language
packages	O
.	O
</s>
<s>
It	O
's	O
available	O
only	O
through	O
Microsoft	O
R	B-Language
Client	O
,	O
a	O
distribution	O
of	O
R	B-Language
for	O
data	O
science	O
,	O
or	O
Microsoft	O
Machine	O
Learning	O
Server	O
(	O
stand-alone	O
with	O
no	O
SQL	B-Language
server	O
attached	O
)	O
,	O
or	O
Microsoft	O
Machine	O
Learning	O
Services	O
(	O
a	O
SQL	B-Language
server	O
services	O
)	O
.	O
</s>
