yn | Version control | Editor library
kandi X-RAY | yn Summary
kandi X-RAY | yn Summary
A Hackable Markdown Note Application for Programmers. Version control, documents encryption, code snippet running, integrated terminal, chart embedding, HTML applets, plug-in, and macro replacement.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of yn
yn Key Features
yn Examples and Code Snippets
Community Discussions
Trending Discussions on yn
QUESTION
Facing a couple logistical issues in PowerShell - clearly I'm missing a basic concept:
Setup: Create the menu.ps1 file (shown below), launch PowerShell 7.2.2 and call the file locally.
Issues:
- The first time you choose option 1 for the ArrayList (
$psArrayList
), it does not display (although we see from the initial screen load that the items are populated). If you return to the menu and choose option 1 again, it will display on the second pass. ($psArray
does load fine on first try, so is this is a type issue.?) - When the script ends,
$psArrayList
and$psArray
are still in the current session variables, as indicated by:Get-Variable psArray*
. Even if I instantiate them with$script:psArrayList = [System.Collections.ArrayList]@()
and$script:psArray = @()
they seem to stay within the session scope. Is there a "right" way to clear them when the ps1 ends?
menu.ps1 contents:
...ANSWER
Answered 2022-Mar-31 at 19:25Regarding the first issue, you would need to use Out-Host
or Out-Default
so that both outputs (Write-Host
together with the arrays) are correctly displayed to the console. See these helpful answers for in depth details on this:
Regarding the second issue, your End-Script
function would have a scope issue, Remove-Variable
is trying to remove variables defined inside the function's scope (Local), if you want to target the variables defined outside it (Script), you would need to use the -Scope
parameter, for example:
QUESTION
I have 2 data frames as below:
...ANSWER
Answered 2022-Mar-27 at 18:28You can merge
to craft a Series, then use it to combine_first
on Col_7:
QUESTION
Here is the way how numpy.mgrid
is used.
ANSWER
Answered 2022-Mar-23 at 01:21Just loop over each item passed to f
and make a slice out of it with slice
, and to get 100j
from 100
, multiply 100
by 1j
:
QUESTION
Could the problem be that Android Studio can't find the path to CocoaPods?
I'm trying to test my app on my iPhone from Android Studio. The error I get is
...ANSWER
Answered 2022-Jan-31 at 17:27A response on IssueTracker says
This problem is present with Android Studio Bumblebee on Mac. Launching flutter from the IDE causes this issue where it can't find the Cocoapods path.
Forced to run flutter from terminal for it to work.
Here's how run your project from the CLI on the iOS simulator. cd
into your project directory and run:
QUESTION
I meet such an issue: I want to store a number of 2-D pixels like [2,3], [4,5], and [7,9] into a set like ([2,3], [4,5], [7,9]). So that we know if a pixel is processed.
My code is like:
...ANSWER
Answered 2021-Dec-21 at 05:50Tuple always needs a comma even if you do not want to store more than two things:
QUESTION
I want to overlay multiple PNG images of different sizes on a transparent canvas using ImageMagick. First I create a transparent canvas of some fixed size, say like
...ANSWER
Answered 2021-Dec-19 at 16:55I really wouldn't recommend shelling out subprocesses from Python to call ImageMagick thousands of times. You'll just end up including too much process creation overhead per image, which is pointless if you are already running Python which can do the image processing "in house".
I would suggest you use PIL, or OpenCV directly from Python, and as your Mac is certainly multi-core, I would suggest you use multi-processing too since the task of doing thousands of images is trivially parallelisable.
As you haven't really given any indication of what your tuples actually look like, nor how to determine the output filename, I can only point you to methods 7 & 8 in this answer.
Your processing function for each image will want to create a new transparent image then open and paste other images with:
QUESTION
I'm having a large multindexed (y,t)
single valued DataFrame df
. Currently, I'm selecting a subset via df.loc[(Y,T), :]
and create a dictionary out of it. The following MWE works, but the selection is very slow for large subsets.
ANSWER
Answered 2021-Dec-09 at 11:24One idea is use Index.isin
with itertools.product
in boolean indexing
:
QUESTION
How do I convert a .txt file with the following form of data to a pandas dataframe?
For example, this is the txt file with the structure (x1, y1, z1), (x2, y2, z2), ... (xn, yn, zn),
(108.222994365147, 16.077177357808345, 17.5), (108.22299074891866, 16.07718225312858, 17.5), (108.2229869226013, 16.077186986051835, 17.5), (108.22298289347849, 16.077191547568788, 17.5),
And after converting I want it to be like this
...ANSWER
Answered 2021-Dec-04 at 06:05data = pd.read_csv('file1.txt', sep=" ", header=None)
data.columns = ["x", "y", "z"]
try this
QUESTION
I have been using the "Gridding METAR Observations" example code from MetPy Mondays #154 for some time without any issues. Up until recently, I passed the entire data set without restrictions (except to exclude stations near the South Pole, which were blowing up the Lambert Conformal transformation.)
Recently, I tried to restrict the domain of the METAR data I process to North America. At this point, MetPy's interpolate_to_grid function seems to be returning nan when it did not previously. Since my region of interest is far removed from the boundaries of the data set, I expected no effect on contours derived from the interpolated data; instead there is a profound effect (please see the example below.) I tried to interpolate over regions of missing data (nan) using SciPy's interp2d function, but there are too many nan to overcome with that "bandaid step".
Question: Is this expected behavior with interpolate_to_grid, or am I using it incorrectly? I can alway continue to use the entire data set, but that does slow things down a bit. Thanks for any help understanding this.
In the following example, I am using the 00Z.TXT file from https://tgftp.nws.noaa.gov/data/observations/metar/cycles/, but I am seeing this with METAR data from other sources.
...ANSWER
Answered 2021-Nov-02 at 21:58This was a tricky one to figure out. What's going on is that MetPy's implementation for Cressman (and Barnes) interpolation uses a maximum search radius for points included in the distance-weighted average. If you don't specify this maximum search radius, it uses 5 times the average minimum spacing between stations.
By subsetting your data to approximately North America, you have constructed subset of the data where the stations are closer together; this results in a smaller search radius (it is decreasing from ~150km to ~66km). This is obviously producing suboptimal results for your dataset, I think in part because there are limited stations. I plotted the station locations on top of the results using a 66km search radius here:
You can see the dropouts are where there are sizable gaps between stations. The best solution here is to manually specify the search_radius
argument to something like 120km, which seems to give reasonable results:
QUESTION
Using Python, consider an array X
containing 2d data:
X = np.array([x0,y0], ..., [xn,yn])
and three 1d arrays Y_A, Y_B, Y_C
of same length as X
containing numbers. Finally consider 3 empty arrays A,B,C
. How can I fill these empty arrays A,B,C
according to the following pseudo-code?
Pseudo-code:
...ANSWER
Answered 2021-Oct-26 at 11:57Maybe try something like this:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install yn
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page