<s>
FitIt	B-Application
is	O
graphical	O
software	O
to	O
fit	O
X-ray	O
absorption	O
near	O
edge	O
structure	O
(	O
XANES	O
)	O
.	O
</s>
<s>
It	O
is	O
the	O
program	O
for	O
the	O
fitting	O
and	O
therefore	O
it	O
always	O
uses	O
external	O
programs	O
,	O
for	O
example	O
FEFF8	B-Application
or	O
FDMNES	B-Application
,	O
for	O
fixed	O
geometry	O
calculations	O
of	O
XANES	O
.	O
</s>
<s>
In	O
order	O
to	O
minimize	O
the	O
number	O
of	O
such	O
calculations	O
,	O
which	O
can	O
be	O
very	O
time-consuming	O
,	O
multidimensional	O
interpolation	O
algorithm	O
is	O
implemented	O
into	O
the	O
FitIt	B-Application
.	O
</s>
<s>
PyFitIt	O
python	O
implementation	O
of	O
FitIt	B-Application
software	O
was	O
extended	O
with	O
additional	O
features	O
:	O
Machine	O
learning	O
,	O
automatic	B-Application
component	I-Application
analysis	I-Application
,	O
direct	O
geometry	O
prediction	O
and	O
others	O
.	O
</s>
