[DOC] Some APIs are missing doc examples

[galipremsagar]

Report incorrect documentation

Location of incorrect documentation
This is a running issue containing a list of public-facing APIs not having code samples..

Describe the problems or issues found in the documentation
Series

abs
add
all
append
argsort
as_mask
astype
ceil
data
describe
diff
digitize
drop_duplicates
dropna
dtype
dtypes
empty
eq
factorize
fillna
floor
floordiv
from_categorical
from_masked_array
ge
gt
has_nulls
hash_encode
hash_values
iloc
index
isin
kurt
kurtosis
label_encoding
le
loc
lt
median
mod
mul
nans_to_nulls
ne
nlargest
nsmallest
nunique
one_hot_encoding
pow
quantile
radd
reindex
rename
replace
reset_index
reverse
rfloordiv
rmod
rmul
round
rpow
rsub
rtruediv
scale
set_index
set_mask
skew
sort_index
std
sub
take
to_array
to_dlpack
to_frame
to_gpu_array
tolist
to_string
truediv
unique
value_counts
values_to_string
var

Steps taken to verify documentation is incorrect
Verify cudf usage & pandas usage.

Suggested fix for documentation
Update their docs

[galipremsagar]

This has been partially resolved in 0.15 on a rolling basis. Moving to 0.16

[kkraus14]

@galipremsagar once 0.18 release is done lets re-evaluate and update this list.

[galipremsagar]

@galipremsagar once 0.18 release is done lets re-evaluate and update this list.

Sure

[galipremsagar]

After re-evaluating what is not yet tackled, here are the list of APIs which need example additions:

abs
add
argsort
as_mask
astype
ceil
data
diff
digitize
drop_duplicates
dtype
dtypes
empty
eq
factorize
floor
floordiv
from_categorical
from_masked_array
ge
gt
has_nulls
hash_encode
hash_values
iloc
index
kurt
label_encoding
le
loc
lt
mod
mul
nans_to_nulls
ne
nlargest
nsmallest
nunique
one_hot_encoding
pow
quantile
radd
reindex
rename
reset_index
reverse
rmod
rmul
rpow
rsub
rtruediv
scale
set_index
set_mask
skew
sort_index
std
sub
take
to_array
to_dlpack
to_frame
to_gpu_array
to_string
truediv
unique
values_to_string
var

I'll close this issue in 0.19