zero-size array Erro in OrdinaryKriging

[jsbluekitty]

I meet a erro like this when i use OrdinaryKriging() zero-size array to reduction operation maximum which has no identity

My code looks like this:

Data = geopandas.read_file('./housepricepoi.shp').to_crs('EPSG:4547')

lons = Data['geometry'].x.values
lons = np.nan_to_num(lons)

lats = Data['geometry'].y.values
lats = np.nan_to_num(lats)

price = Data['price'].values
price = np.nan_to_num(price)

try:
    ok3d = OrdinaryKriging(lons, lats, price, variogram_model='linear')
    k3d1, ss3d = ok3d.execute("grid", grid_lon, grid_lat)
except Exception as e:
    print(e)

The info of data is like:

<class 'geopandas.geodataframe.GeoDataFrame'>
RangeIndex: 9920 entries, 0 to 9919
Data columns (total 2 columns):
 #   Column    Non-Null Count  Dtype   
---  ------    --------------  -----   
 0   price     9920 non-null   int64   
 1   geometry  9920 non-null   geometry
dtypes: geometry(1), int64(1)
memory usage: 155.1 KB

I wonder if it's my data that's causing the problem if you want the data，i will send it to your email.

[jsbluekitty]

And this is my new code:

Data = geopandas.read_file('./housepricepoi.shp').to_crs('EPSG:4547')
Data = Data.drop_duplicates(['geometry'])
ok3d = OrdinaryKriging(Data['geometry'].x, Data['geometry'].y, Data['price'])

k3d1, ss3d = ok3d.execute("grid", grid_lon, grid_lat)

this is the info of Data:

<class 'geopandas.geodataframe.GeoDataFrame'>
Int64Index: 1585 entries, 0 to 9877
Data columns (total 2 columns):
 #   Column    Non-Null Count  Dtype   
---  ------    --------------  -----   
 0   price     1585 non-null   int64   
 1   geometry  1585 non-null   geometry
dtypes: geometry(1), int64(1)
memory usage: 37.1 KB

it's still raise the erro: ValueError: zero-size array to reduction operation maximum which has no identity