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QUESTION
I am new to R and have a very large irregular column in a data frame like this:
...ANSWER
Answered 2022-Mar-25 at 12:47You can do:
QUESTION
I need to parse a Google Alert RSS Feed with Google Apps Script. Google Alerts RSS-Feed
I found a script which should do the job but I cant get it working with Google's RSS Feed:
The feed looks like this:
...ANSWER
Answered 2022-Mar-19 at 13:33In your situation, how about the following modified script?
Modified script:QUESTION
Our application makes use of serialized snapshots of state which is just a serialized version of the class at a point in time.
We have a version number on the class which we increment each time the class is modified which we use to indicate that the previous snapshots are invalid and to ignore them.
Occasionally someone forgets to increment the version and we get errors.
I'd like to generate a hash for the structure of the class and use that to store snapshots, so if it ever changes then the previous snapshots would automatically invalidated.
I've though about using Roslyn to load a representation of the class and call GetHashCode on that but can't work out how to load an existing class into Roslyn.
Also I've looked into Visual Studio generating hashes at build time: https://docs.microsoft.com/en-us/archive/msdn-magazine/2017/march/visual-studio-hashing-source-code-files-with-visual-studio-to-assure-file-integrity but this seems like overkill.
So how do I generate a hash of an existing C# class structure (not an instance of a class)?
Update:
This is a POCO with no methods. Changes that invalidate snapshot include adding, removing or renaming properties.
...ANSWER
Answered 2022-Mar-09 at 16:09I would suggest using reflection to get that.
Something along the lines of:
QUESTION
I've built this new ggplot2
geom layer I'm calling geom_triangles
(see https://github.com/ctesta01/ggtriangles/) that plots isosceles triangles given aesthetics including x, y, z
where z
is the height of the triangle and
the base of the isosceles triangle has midpoint (x,y) on the graph.
What I want is for the geom_triangles()
layer to automatically provide legend components for the height and width of the triangles, but I am not sure how to do that.
I understand based on this reference that I may need to adjust the draw_key
argument in the ggproto
StatTriangles
object, but I'm not sure how I would do that and can't seem to find examples online of how to do it. I've been looking at the source code in ggplot2
for the draw_key
functions, but I'm not sure how I would introduce multiple legend components (one for each of height and width) in a single draw_key
argument in the StatTriangles
ggproto
.
ANSWER
Answered 2022-Jan-30 at 18:08I think you might be slightly overcomplicating things. Ideally, you'd just want a single key drawing method for the whole layer. However, because you're using a Stat
to do the majority of calculations, this becomes hairy to implement. In my answer, I'm avoiding this.
Let's say I'd want to use a geom-only implementation of such a layer. I can make the following (simplified) class/constructor pair. Below, I haven't bothered width_scale
or height_scale
parameters, just for simplicity.
QUESTION
I have created this coefficient plot. However, I cannot increase the gap between rows. I also like to add an alternative background colour of row (like row-wise grey then white then grey ) to make it easier for the reader to read the plot. Would you please support improving its visualization?
I used the following code to create this plot.
...ANSWER
Answered 2022-Jan-29 at 09:56You could play with flexible and different cex
and adjust with the png
parameters. This looks already better. For line-by-line gray shading we can simply use abline
with modulo 2.
QUESTION
I have 3 dart files in my page . I have 2 page. When i get data from firebase for second page , im getting a error screen for a second than my data loading. I checked error message it says my data null. I tried Circular progress indicator like this
...ANSWER
Answered 2021-Dec-27 at 18:30I guess you're using an old version of the Firestore package.
Get the latest version of Firestore from pub.dev, right here: https://pub.dev/packages/cloud_firestore
And then check usage of the package from here: https://firebase.flutter.dev/docs/firestore/usage
QUESTION
I am checking two conditions which is following in C#:
...ANSWER
Answered 2021-Dec-20 at 18:18You can create extension method on IEnumerable and use it
QUESTION
I have this table, and I want to create a trigger on Magazine
, that verifies "after insert" if the name of the Magazine
inserted is either Vogue or People.
If it's not one of them, it gets deleted.
Table:
- MAGAZINE (ISBN, MAG_NOM, PRIX_Mois);
My trigger:
...ANSWER
Answered 2021-Dec-19 at 12:56You don't need to use a DML, convert the trigger into this
QUESTION
I'm using RSelenium
to do some web scraping on the website https://unicancer.sigaps.fr/.
I want to review my team sigaps points (for those who don't know, when you publish an article in a scientific magazine, you get points and the more you have points the more you will get acknowledged). I want to automatize, the collection of those data.
So i already used RSelenium
on other website and it worked, but on this specific one i can't find the html tags with those function:
ANSWER
Answered 2021-Dec-08 at 14:12We have to use switchToFrame
which is generally used for iframe
. Though there is no iframe
for this webiste we use switchToFrame
to change focus on frame
.
QUESTION
I'm trying to use System.CommandLine
and I've installed the nuget package:
ANSWER
Answered 2021-Dec-01 at 09:57Make sure to target .NET 5.0, and run these 2 commands in the Package Manager Console:
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