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QUESTION
...I try to make all the trees after sorting to lowercase but For some reason, I cannot make the lower case to the listTree() work! I know that to lowercase() need to be pasted in a function in order for it to work with the array. But I am not sure how to add to the listTrees() function. Do we need to use if-else statement?
ANSWER
Answered 2022-Mar-10 at 08:43toLowerCase()
is only used with strings here you are using toLowerCase()
with array. If you want all array items to be in lowercase you need to transform each array items like that:
QUESTION
I'm trying to plot the coefficients of three zero-inflated negative binomial models.
My data looks like this:
...ANSWER
Answered 2022-Mar-01 at 00:31Load packages:
QUESTION
I'm running a query to see who hasn't signed up for classes, and whenever I do it, it duplicates the student information and displays them twice. Any reason query wise it would be doing this?
Here is the query.
...ANSWER
Answered 2022-Jan-13 at 21:01Since you aren't interested in any data from gh
simply use not exists
QUESTION
on my windows system I've succesfully installed a virtual environment (python version is 3.9) using windows command prompt
python -m venv C:\my_path\my_venv
Always using windows command prompt, I'm able to activate the created venv via
C:\my_path\my_venv\Scripts\activate.bat
I am sure the venv is correctly activated since:
- on the windows terminal, I see the command line is preceded by
(my_venv)
- if I activate python from the terminal (
python
) and run the following commands:import sys
;sys.path
I can see, in the list of paths, the desired path[..., 'C:\\my_path\\my_venv\\lib\\site-packages\\win32\\lib', ...]
- if I do stuff in the activated venv (like installing packages) everything works and is done inside the venv
To sum up, everything is fine so far.
I also have WSL2 (Ubuntu) and I'd like to activate the same venv using the Ubuntu terminal. If, from the Ubuntu terminal, I activate the venv
source /mnt/c/my_path/my_venv/Scripts/activate
it seems to work since the command line is preceeded by (my_venv)
, but when I run python (python3
command) and then run import sys
; sys.path
I see that the system is targeting the base Ubuntu python installation (version 3.8) and not the venv installation:
['', '/usr/lib/python38.zip', '/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', '/usr/local/lib/python3.8/dist-packages', '/usr/lib/python3/dist-packages']
The venv is not really activated. Any suggestions to solve the issue?
If it can help, I add a couple of information.
If I try to create a venv directly using the Ubuntu terminal
python3 -m venv /mnt/c/my_path/my_venv_unix
and activate it via the Ubuntu terminal (source /mnt/c/my_path/my_venv_unix/bin/activate
) everything works fine, but that's not what I want: I'd like to use WSL to activate a virtual environment created using windows command prompt, since on my machine I've a lot of venvs created with windows and I don't want to replicate them.
Following the script C:\my_path\my_venv\Scripts\activate (/mnt/c/my_path/my_venv/Scripts/activate using wsl folders naming) (I had to change the EOL from windows to Ubuntu, otherwise the command source /mnt/c/my_path/my_venv/Scripts/activate
would not have worked)
ANSWER
Answered 2021-Dec-29 at 17:29Short answer: It's highly recommended to use the Linux version of Python and tools when in WSL. You'll find a number of posts here on Stack Overflow related to this, but your question is different enough (regarding venv) that it deserves its own answer.
More Detail:
Also worth reading this question. In that case, the question was around a dual-boot system and whether or not the same venv could be shared between Windows and Linux.
I know it seems like things might be better on WSL, where you can run Windows .exe
cutables under Linux, but it really isn't for this particular case.
You've solved the first problem, in the difference in line endings, but the next problem that you are facing is the difference in the directory format. After sourcing activate
, do an echo $PATH
and you'll see that the Windows style C:\path\to\the\venv
path has been prepended to your PATH
. For WSL, that would need to be /mnt/c/path/to/the/venv
.
That's not going to work.
Once you fix that (again, by editing activate
), you are still trying to run python3
. The venv executable is actually python.exe
. Under WSL, you do have to specify the extension.
So if you:
- Change the line-endings from CRLF to LF
- Change the path style in
activate
from Windows to WSL2 format - Use the
python.exe
executable
Then you can at least launch the Windows Python version. Your import sys; sys.path
will show the Windows paths.
That said, you are almost certainly going to run into additional problems that don't make it worth doing this. For instance, if a script assumes python
or python3
, or even pip
; then those are going to fail because it needs to call, e.g., pip.exe
.
Line endings and native code will also be a problem.
For these reasons (and likely more), it's highly recommended to use the Linux version of Python when in WSL.
QUESTION
I need to write an algorithm where the user selects an option to filter a particular data and on every click it makes an api request returning the filtered data. As many times the user clicks it needs to continue to filter out the data. My question is, how can the algorithm save the most recent result and run a for/filter loop on the most recent results? Should I store the most recent results in localStorage in order to further filter the results? And when the user decides to unselect the data that they wanted to filter, it should show the user their previous results. The user should be able to continue to filter until they get the desired data. Please see example below.
...ANSWER
Answered 2021-Dec-28 at 18:47You can iterate the array and check if each object satisfies the passed filters. This works with filters having multiple elements and each element having multiple properties.
QUESTION
I am attempting to update old code I have where I previously used raster to terra. I encounter an issue extracting dominant vegetation type from a LANDFIRE raster layer. In ArcGIS I created a new column titled "CONDENSED" for my condensed vegetation types (i.e., 1="Aspen", 2="Other", etc.)and this is the active category I would like to extract from. I have 8 categories. For some reason, the extracted value is one category "higher" than it should be. For example, a point should have a value of 1 for aspen, but the extracted value is 2/Other. This is consistent across all veg types and doesn't matter if my points are sf or SpatVector. I am using terra version 1.4.11.
I have tried creating a reproducible example from scratch and it works perfectly fine when compared to values from raster::extract()
, so I'm not sure if the issue has to do with how I'm specifying the active layer? I
have uploaded a small sample of the raster and points I am working with here: https://github.com/Cara-Thompson/Elk-resource-selection
Anyone know what might be going on? Below is the description of my SpatRaster and my steps.
BONUS: I noticed terra::extract()
works with sf objects in full form when a Raster* object is used. So I can get it to extract correctly not using SpatVect/SpatRast formats, but is this any faster than using raster::extract()
?
ANSWER
Answered 2021-Oct-13 at 15:13This is a bug related to the difference between ESRI VAT and GDAL categories (see this issue) that now seems fixed. I now get
QUESTION
I want to do LDA (linear discriminant analysis) with the Auto
dataset of the ISLR package. To start off, I am trying to take the cars with year
= 75 and use it as a "test set", where cars of all other years will be used as a "training set". However, it seems that I've made a mess of things. For instance, in my code below, sequentially using the replace
function for the values of mpg.year75
just results in everything being set to high
:
ANSWER
Answered 2021-Sep-24 at 07:02The issue is in these 3 lines.
QUESTION
I am trying to use the rename()
function of the dplyr package to change the variable mpg
to mpgclass
:
ANSWER
Answered 2021-Sep-23 at 07:08rename
works for me, perhaps you have a function conflict with another package. Try using dplyr::rename
.
To change the columns based on range of values you may use case_when
or cut
.
QUESTION
I'm a relatively new user of Google Earth Engine, although have some experience coding in R. I'm trying to merge several ee.FeatureCollections with identical property labels, as seen in a brief example using trees below.
I've first defined two Feature Collections (random points, just to illustrate the problem), setting two properties for each: a 'type' and a 'status' label with associated values.
var trees = ee.FeatureCollection(ee.Geometry.Point([-122.22599, 37.17605])).set('type','Sycamore').set('status', 'dead');
var trees2 = ee.FeatureCollection(ee.Geometry.Point([-125.3456, 38.16578])).set('type','Aspen').set('status','alive');
I then merge the two Feature Collections:
var treesMerge = trees1.merge(trees2);
However, when I print the merged collection, the properties associated with each Feature have not be carried over from the individual Feature Collections:
print(trees1); print(trees2); print(treesMerge);
Is there a way to merge Feature Collections that preserves these properties?
...ANSWER
Answered 2021-Sep-15 at 14:44You wrote ee.FeatureCollection(...).set('type','Sycamore').set('status', 'dead')
, which does not set properties on the individual features, but properties on the collection as a whole. .merge()
doesn't preserve those properties, but it isn't a big deal that it doesn't since copying them would be easy if needed.
If you set properties on the individual features, then .merge()
will preserve them.
QUESTION
I have a data frame that currently looks like this:
...ANSWER
Answered 2021-Sep-13 at 16:42Here is a solution using the datastep()
function from the libr package.
First, create your sample data:
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