Questions tagged [scikit-learn]
a Python module for machine learning, built on top of SciPy
20
questions
0
votes
1answer
48 views
Scikit learn in QGIS does not work (Windows 10)
I tried to install scikit-learn in OSGeo4W Shell.
I used the information provided by another question 1.
Both ways as AlecZ suggested worked.
After installation I get this message: "Successfully ...
0
votes
0answers
83 views
ArcMap: ImportError: No module named sklearn.neighbors
I have tried to create my own Kernel Density Estimation tool in ArcMap, but when importing the sklearn.neighbors module I get the following error:
from sklearn.neighbors import KernelDensity
...
1
vote
0answers
31 views
Is it possible (and how) to mask NoData values using Scikit-learn PCA?
I have to carry out a Principal Component Analysis (sklearn.decomposition.PCA) on a dataset composed of several images. Some of these images have very large gaps due to the removal of clouds.
Is there ...
1
vote
1answer
178 views
Getting scipy.cKDTree to return everything with a given meter radius
I want to find everything within a 0.1 meter radius.
I'm confused on exactly how query_ball_point is getting distance. I'm using decimal degree coordinates when creating the cKDTree, ie. [(-73....
1
vote
0answers
41 views
Groups the pixels into the nearest large class
I have clustered an image with 3 classes using the K_menas, but I would like the isolated pixel groups to be incorporated into the nearest large class. Is there a quick way to do this in the K_means ...
0
votes
0answers
116 views
How to redesign confusion matrices from Ecognition with python and seaborn?
I am using eCognition manual classification as a baseline for performance comparison with other 3D classification methods. For each method, I am creating confusion matrices in python with sklearn and ...
1
vote
0answers
388 views
Memory allocation problem when running Random forest regression in python
I have image with 4 bands . I want to see if I can predict the first band using the 3 other bands.
My problem is that I cannot fit the model because I get the following error message:
MemoryError: ...
0
votes
2answers
589 views
Cluster networkx graph with sklearn produces unexpected results
I have an interconnected weighted graph. The graph is a representation of a Multilinestring connecting points. See the visualisation in QGIS:
So from each point I know how much it costs to go to ...
2
votes
1answer
413 views
How can you use scikit-learn to do PCA on a 9 band raster image?
I would like to do a PCA on a 9band raster image to reduce the total number of inputs bands to 3. However, I'm not able to do it as I don't think I understand what sklearn is doing in its PCA.
Some ...
3
votes
0answers
3k views
Encoding categorical variable for random forest with sklearn
I have a random forest model that works pretty well, taking a bunch of vanilla remote sensing raster data as input. I think it could be improved with addition of some information that I currently have ...
1
vote
0answers
44 views
Handling Nodata values in sklearn (working w pyimpute)
I'm using sklearn for a classification project. Because I'm relatively new to doing geospatial tasks outside of a GUI, I'm using Matt Perry's pyimpute (link has all the code for that module) to handle ...
1
vote
0answers
111 views
Nearest neighbours with Python [closed]
I'm learning Python and this has been a bit of a challenge!
My DataFrame looks like this below.
name geometry
0 Uimastadion POINT (24.93045 60.18882)
1 Hartwall ...
0
votes
1answer
517 views
Dzetsala plugin on QGIS, missing scikit-learn
I want to run random forest classification from Dzetsaka plugin on QGIS 3.4.7 but I can't as a message appears as following:
Scikit-learn library is missing on your computer. You must use Gaussian ...
2
votes
0answers
791 views
Change size to the squares of the confusion matrix [closed]
I have a problem with size in the 'plot_confusion_matrix', the squares of the confusion matrix appear cut off. I would like to solve this problem.
svc = SVC(kernel='linear',C=1,probability=True)
svc....
1
vote
0answers
251 views
Kernel Density Estimate on point data in degrees (scikit-learn)
I am estimating point density, where I am having point coordinates in degrees, I need a raster(over the extent of these points) which provides a density estimation on each cell.
I have tried on R but ...
-1
votes
1answer
667 views
Classify polygons with Random Forest on Python
I have a segmentation shapefile made with e-cognition containing many polygons of which a part classified for the train file. I would like to classify them by applying labels (e.g. water, vegetation, ...
1
vote
0answers
43 views
How to find data orientation atfer an ICA
I'm trying to cluster tractor sensor data by row in a python script. For the moment I'm trying to find data orientation after a FastICA (sklearn), vertical or horizontal. Because for same data, ...
4
votes
2answers
2k views
Installing scikit-learn python package for QGIS on Win
I want to install scikit-learn package to be executed in Python-QGIS. I've tried to use OSGeo4W Shell to install with pip. But I got this error.
I've tried to run osgeo4w-setup-x86_64.exe and install ...
0
votes
1answer
591 views
Why is there a need to train the clusterer in Google Earth Engine
I'm wondering why before clustering the global Landsat-7 image in this tutorial, the authors first trained the clusterer on a subset region around Egypt?
Since the Kmean algorithm is supposed to be ...
2
votes
1answer
1k views
Python with ArcGIS: import scikit-learn fails (bad numpy.dtype)
I am trying to install scikit-learn 0.17.1 (current) into my Python 2.7.3 that accompanies my ArcGIS 10.2. The installation through easy_install goes through smoothly, but I get the following error on ...
