https://bugs.kde.org/show_bug.cgi?id=477294

--- Comment #4 from Dreas Nielsen <dreas.niel...@gmail.com> ---
Thanks.  I closed that bug report.

I installed the Windows version and evaluated that.  The purpose of my 
evaluation was to determine whether LabData2 is a good tool to provide 
to a group of scientists and engineers who want to easily visualize 
data (primarily spatially-explicit data).  This group includes some who 
are comfortable wielding R or Python for data analysis, but also a 
group who are technically oriented, but will not devote a lot of time 
to learning new software, so ease of use is extremely important.  Tools 
that they currently have available include Orange 
(<https://orangedatamining.com/>), GeoDa 
(<https://geodacenter.github.io/>), KNIME (<https://www.knime.com/>), 
and mapdata.py (<https://mapdata.readthedocs.io/en/latest/>).  LabPlot2 
looks promising because it can display data in a spreadsheet (familiar 
to all potential users) and can potentially assemble multiple plots and 
text in something that looks like a dashboard.

After evaluation, I won't be adding LabPlot2 to our toolbox, for the 
reasons illustrated by the following comments that I made during my 
evaluation.  These don't necessarily qualify as bugs, but they are 
usability issues that perhaps you would want to consider.

1. Import of data from a CSV file or spreadsheet should be simpler: a 
project should be created by default if one does not exist, an import 
option should be on the right-click context menu for a project, and 
import to a new spreadsheet should be the default.


2. Data selection is carried out by masking values of particular 
columns, rather than selecting them. Users may be interested in only a 
subset of a large data set, and masking everything that is *not* of 
interest requires them to know everything about the data set that they 
do not care about.  Masking inverts the importance of elements of the 
data set.


3. When values of a column are masked, they still show up in column 
statistics.


4. The right-click menu for a column header does not include a 'Mask' 
(or 'Select') option, which it reasonably ought to--this functionality 
is on a 'Manipulate data' submenu. Most of the other options on this 
submenu are greyed out because they cannot be applied to imported data. 
 Data selection options should be more obvious and require fewer clicks.


5. Plotting functionality should be more accessible. When a spreadsheet 
has been imported and is displayed, there is no 'Plot' menu or button 
bar option to easily plot data from the spreadsheet.


6. If 'Plot data' is selected from the right-click menu for a column, 
only that column can be selected as the X and Y variable. It is 
necessary to click on one column and control-click on a second column 
to allow an X-Y plot of different variables. This is not obvious and is 
not documented.


7. When an X-Y plot is made, the points are connected by a line, by 
default, but the X values are not sorted in order. There is no property 
or option to allow sorting of X values after the plot is created. If 
the column of X values in the spreadsheet is sorted after the plot is 
displayed, the plot is not automatically update, and there is no option 
associated with the plot that allows it to be refreshed.


8. When plots are created in a new worksheet, both the plot and the 
worksheet are very small and need to be manually resized to a 
reasonable size.


9. The axis title can be resized, but the axis labels (i.e., data 
values) evidently cannot.


10. If multiple columns are selected in the spreadsheet, and a plot 
then produced, on returning to the spreadsheet the columns are not 
selected--i.e., selections are not preserved.


11. When a box plot of multiple variables is produced, there are no 
X-axis labels identifying the data column corresponding to each 
box-and-whisker figure.


12. When a histogram of a single variable is produced, there is no way 
to modify the number of bins used.


13. When the 'Sort' option is selected from the right-click menu for a 
column, or the sorting buttons on the button bar are used, only that 
column is sorted rather than the entire spreadsheet. This can (almost 
certainly will) lead to a loss of data integrity.


14. The relationships between folders, workbooks, spreadsheets, 
matrixes, and worksheets is not obvious from the UI. It is not clear 
which of them may be required, and how they optionally can be used 
together for different purposes. The documentation describes then 
individually but does not illustrate alternative workflows.


On Tue, Nov 21 2023 at 07:30:52 AM +0000, Alexander Semke 
<bugzilla_nore...@kde.org> wrote:
> <https://bugs.kde.org/show_bug.cgi?id=477294>
> 
> --- Comment #3 from Alexander Semke <alexander.se...@web.de 
> <mailto:alexander.se...@web.de>> ---
> (In reply to Dreas Nielsen from comment #2)
>>  Created attachment 163325 [details]
>>  attachment-3918188-0.html
>> 
>>  v. 2.9 is not in the Ubuntu repository.  Is there another place to 
>> get
>>  a .deb package?
> You can use flatpack to get the new version of LabPlot. Also, 
> there're Ubuntu
> package (as well as flatpacks) available for the current development 
> version.
> Please check the information on <https://labplot.kde.org/download/> 
> to see what
> is more feasible for you.
> 
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