smbyc / acatama Goto Github PK

from https://fivequestionz.home.blog/2020/04/07/accuracy-assessment-of-your-classification-map-check-a-confusion-matrix-calculated-based-on-ground-truth-points/

Thank you so much for the useful tutorial! I followed exactly your steps on my image and now just trying to obtain the Confusion Matrix in the Accuracy Assessment Tab but got the Classification Accuracy Assessment Results Window empty and an error saying the following. I’m not able to export it as csv. Not sure what it means. Could you recognise the error here?
Many thanks in advance

—–
Error:

unsupported operand type(s) for +: ‘int’ and ‘NoneType’
Traceback (most recent call last):
File “/Users/safaaalawadhi/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/AcATaMa/utils/system_utils.py”, line 36, in wrapper
return func(*args, **kwargs)
File “/Users/safaaalawadhi/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/AcATaMa/gui/accuracy_assessment_results.py”, line 501, in export_to_csv
sum([accu_asse.thematic_pixels_count[v] for v in accu_asse.values])))
TypeError: unsupported operand type(s) for +: ‘int’ and ‘NoneType’

AcATaMa is a great plugin! It would be nice if some of its tool can be used in the QGIS Processing Framework, as this allows to include them into the QGIS Model builder.

The first ones that come to my mind are:

[ ] Simple Random Sampling
[ ] Stratified Random Sampling
[ ] Accuracy Assessment

• add a cancel button to cancel the process and not take the Qgis instance unuseful
• (maybe) parallelization

It would be nice if the README.md gives an example how to cite AcATaMa.

E.g. like
Llano, X. C. (2019). "AcATaMa - QGIS plugin for Accuracy Assessment of Thematic Maps.", https://plugins.qgis.org/plugins/AcATaMa/.

Hi! Thanks for your plugin!
But i found bugs that the plugin were not generated any sample file.
When I click "Generate the sampling" it says :

2021-09-12T07:05:26     INFO    AcATaMa : Could not load layer: /mnt/65625765-a7a4-482f-8971-5e97fb483b25/linux/documents/Kerja/mba nurul pandeglang/Citra Pandeglang/sentinel/mencoba/aaaaaa
2021-09-12T07:05:26     SUCCESS    AcATaMa : Generate the simple random sampling, completed

Thus no sample file were generated.
I've tried both geopackage and shapefile, but still have the same issues.
I've tried reinstalling the plugin too.
I'm using QGIS:

Here's a gif I hope it can help you:

Hi,

Firstly I'd like to appreciate you much for your hard work to create this great plugin.

I'd like to ask you for clarification regarding the quantity you use to calculate the number of samples. In the AcATaMa plugin at the 'sampling' tab, it shows standard error for each stratum. Alofsson et al. (2014) used standard deviation. In its user guide (https://smbyc.github.io/AcATaMa/), particularly on the Sampling design section at "Stratified random sampling using area-based proportion", it was mentioned that "Standard deviation of each stratum: You define the values in the table". Olofsson provides a way to calculate the standard deviation (by using the user's accuracy conjecture), but I am not sure for SE. How do you actually calculate SE and how it relates to the sample number of each stratum.

Thanks,
WN

When opening Acatama panel from toolbar, I got this python error:

2022-01-25T17:54:48     WARNING    Traceback (most recent call last):
              File "/home/lam/.local/share/QGIS/QGIS3/profiles/default/python/plugins/AcATaMa/acatama.py", line 127, in run
              self.dockwidget = AcATaMaDockWidget()
              File "/home/lam/.local/share/QGIS/QGIS3/profiles/default/python/plugins/AcATaMa/gui/acatama_dockwidget.py", line 68, in __init__
              self.setup_gui()
              File "/home/lam/.local/share/QGIS/QGIS3/profiles/default/python/plugins/AcATaMa/gui/acatama_dockwidget.py", line 95, in setup_gui
              self.QCBox_ThematicRaster.layerChanged.connect(self.select_thematic_raster)
             TypeError: decorated slot has no signature compatible with layerChanged(QgsMapLayer*)

This is my QGIS info:

This also happens on Windows with the same error message:

2022-01-25T17:56:21     WARNING    Traceback (most recent call last):
              File "C:\Users/sakinah.lestari/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\AcATaMa\acatama.py", line 127, in run
              self.dockwidget = AcATaMaDockWidget()
              File "C:\Users/sakinah.lestari/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\AcATaMa\gui\acatama_dockwidget.py", line 68, in __init__
              self.setup_gui()
              File "C:\Users/sakinah.lestari/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\AcATaMa\gui\acatama_dockwidget.py", line 95, in setup_gui
              self.QCBox_ThematicRaster.layerChanged.connect(self.select_thematic_raster)
             TypeError: decorated slot has no signature compatible with layerChanged(QgsMapLayer*)

Edit: It does not happened on the LTR version 3.16.16 'Hannover'.

The about text mentions "ThRasE", but the acronym it is not further explained:

About us
ThRasE was developing, designed and implemented by the Group of Forest and Carbon Monitoring System (SMByC), operated by the Institute of Hydrology, Meteorology and Environmental Studies (IDEAM) - Colombia.

Seems like ThRasE is a former name of AcATaMa and the about text needs to be updated?

Greetings, I am getting this error when trying to generate the confusion matrix... what could it be due to?
Traceback (most recent call last):
File "C:/Users/usuario/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\AcATaMa\utils\system_utils.py", line 36, in wrapper
return func(*args, **kwargs)
File "C:/Users/usuario/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\AcATaMa\gui\accuracy_assessment_results.py", line 86, in get_html
if accu_asse.samples_outside_the_thematic:
AttributeError: 'AccuracyAssessment' object has no attribute 'samples_outside_the_thematic'

When I try to do fixed number of samplings using the plug in, it says "The sampling process seems stuck due to sampling conditions. Do you want to continue this sampling process and never ask this again?" But when I try to continue it, QGIS becomes stuck and become unresponsive.

Hi, Just experimenting with your plug in and I really like the GUI and hope you can help me fix my issue.

I've run a 200 point Simple Random Sample over a tif with 2 classes, 0 and 1.

When I get to the accuracy results, I get the warning (of the title) and essentially all of the classes that were marked 0 are not included in the accuracy assessment analysis and report.

Any chance this is a known issue and I might have just done the set up wrong? Should I perhaps re-classify the 0 values to another integer number in the raster..

TIA,
m

Discussed in #14

The plugin works well with the minimum distance = 0.
Whatever non-zero minimum distance is set, this error message comes:

Traceback (most recent call last):
  File "/home/tung/.local/share/QGIS/QGIS3/profiles/default/python/plugins/AcATaMa/utils/system_utils.py", line 36, in wrapper
    return func(*args, **kwargs)
  File "/home/tung/.local/share/QGIS/QGIS3/profiles/default/python/plugins/AcATaMa/core/sampling.py", line 224, in do_stratified_random_sampling
    if sampling.total_of_samples < total_of_samples and sampling.total_of_samples > 0:
TypeError: unorderable types: NoneType() < int()

I use QGIS 3.4, OS Ubuntu 16.04, AcATaMa v19.11.21
Please check.

Hi! I already installed the AcATaMa plugin, but when I clicked the table content doesn't appear on the screen. Could you tell me, what I should do about this issue?