<s>
Net	B-General_Concept
reclassification	I-General_Concept
improvement	I-General_Concept
(	O
NRI	O
)	O
is	O
an	O
index	O
that	O
attempts	O
to	O
quantify	O
how	O
well	O
a	O
new	O
model	O
reclassifies	O
subjects	O
-	O
either	O
appropriately	O
or	O
inappropriately	O
-	O
as	O
compared	O
to	O
an	O
old	O
model	O
.	O
</s>
<s>
Continuous	O
net	B-General_Concept
reclassification	I-General_Concept
improvement	I-General_Concept
is	O
a	O
category-less	O
and	O
more	O
objective	O
form	O
of	O
net	B-General_Concept
reclassification	I-General_Concept
improvement	I-General_Concept
.	O
</s>
<s>
This	O
is	O
not	O
the	O
case	O
for	O
other	O
metrics	O
such	O
as	O
area-under-the-curve	B-Algorithm
,	O
Brier	O
score	O
or	O
net	O
benefit	O
.	O
</s>
<s>
nricens	O
:	O
calculate	O
the	O
net	B-General_Concept
reclassification	I-General_Concept
improvement	I-General_Concept
(	O
NRI	O
)	O
for	O
risk	O
prediction	O
models	O
with	O
time	O
to	O
event	O
and	O
binary	O
data	O
.	O
</s>
