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QUESTION
I have a grib file containing monthly precipitation and temperature from 1989 to 2018 (extracted from ERA5-Land).
I need to have those data in a dataset format with 6 column : longitude, latitude, ID of the cell/point in the grib file, date, temperature and precipitation.
I first imported the file using cfgrib. Here is what contains the xdata list after importation:
...ANSWER
Answered 2021-Jun-16 at 02:36Here is the answer after a bit of trial and error (only putting the result for tp variable but it's similar for t2m)
QUESTION
I have a dataset with the name of Danish ministers and their position from 1990 to 2020 (data comes from dataset called WhoGovern; https://politicscentre.nuffield.ox.ac.uk/whogov-dataset/). The dataset consists of the ministers name
, the ministers position
, the prestige
of that position, and the year
in which the minister had that given position.
My problem is that some ministers are counted twice in the same year (i.e., the rows aren't unique in terms of name
and year
). See the example in the picture below, where "Bertel Haarder" was both Minister of Health and Minister of Interior Affairs in 2010 and 2021.
I want to create a dataset, where all the rows are unique combinations of name
and year
. However, I do not want to remove any information from the dataset. Instead, I want to use the information in the prestige
column to combine the duplicated rows into one. The observations with the highest prestige should be the main observations, where the other information should be added in a new column, e.g., position2
and prestige2
. In the example with Bertel Haarder the data should look like this:
(PS: Sorry for bad presenting of the tables, but didn't know how to create a nice looking table...)
Here's the dataset for creating a reproducible example with observations from 2010-2020:
...ANSWER
Answered 2021-Jun-08 at 14:04Reshape the data to wide format twice, once for position
and the other for prestige_1
, and join the two results.
QUESTION
When navigating from Composable A -> Composable B, say Composable A is a Lazy List scrolled halfway down and Composable B is a Lazy List Item Details Screen. Currently, the lazy list scroll position isn't stored, and when navigating back to Composable A from B, the list starts from item index 0. We could store it in a ViewModel, and read the value back, as well as use rememberSaveable, however, I am unsure as to how to implement rememberSaveable so that it scrolls to the saved position after back navigation.
Which method would be preferred to use following good code practices?
Edit: My problem arises from the fact that the listState isn't stored when navigating back from composable B to A. So if we scroll to the bottom and select an item and look at its details, when we navigate back to the list it is scrolled to the top, instead of saving its scrollState.
My composable
...ANSWER
Answered 2021-Jun-15 at 14:10I'm leaving this question up in case anyone else ever gets stuck in my situation, but the code works as it is meant to, I just committed a folly.
I didn't account for height changes with asynchronous image loading and as such, the list would not be at its saved position upon composable navigation, due to the list state being smaller than the screen height on returning to the composable.
However, If the images were given static containers to load into to that don't change their size, then upon back navigation, the composable would correctly display the saved list state.
QUESTION
i am trying to make login function but the function always make my input was wrong even i using the correct data from database
here's my login section
...ANSWER
Answered 2021-Jun-15 at 11:46From your image, it shows that the password (firsttt) is in the database in plaintext. However, when you are querying it, you are using md5 to hash it before you check the database. The MD5 hash of firsttt is 568745cb18115e238907fbf360beb37a and since that doesn't match the field in the database it does not return a result. If you want to see the result return positive, you can remove the md5() function for now just to see it but you should secure the database in some other way.
MD5 alone would not be secure as common passwords are easily detected. The passwords need to be hashed and salted, which makes them more unique and unindentifiable.
For example, php provides a password_hash function that will hash and salt the password: https://www.php.net/manual/en/function.password-hash.php
which you should use when adding a user to the database.
They also provide a password_verify function that will be able to tell you if the submitted password is correct: https://www.php.net/manual/en/function.password-verify.php
Read here for more information: https://www.php.net/manual/en/faq.passwords.php
QUESTION
I'm trying to create a USDZ object with the tutorial from Apple Creating 3D Objects from Photographs. I'm using the new PhotogrammetrySession within this sample project: Photogrammetry Command-Line App.
That's the code:
...ANSWER
Answered 2021-Jun-15 at 11:53tl;dr: Try another set of images, probably there is something wrong with your set of images.
I've had it work successfully except in one instance, and I received the same error that you are getting. I think for some reason it didn't like the set of photos I took for that particular object. You could try taking just a few photos of another simple object and try again and see if that is the problem with your first run.
QUESTION
I know there are some other questions (with answers) to this topic. But no of these was helpful for me.
I have a postfix server (postfix 3.4.14 on debian 10) with following configuration (only the interesting section):
...ANSWER
Answered 2021-Jun-15 at 08:30Here I'm wondering about the line [in s_client]
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
You're apparently using OpenSSL 1.0.2, where that's a basically useless relic. Back in the days when OpenSSL supported SSLv2 (mostly until 2010, although almost no one used it much after 2000), the ciphersuite values used for SSLv3 and up (including all TLS, but before 2014 OpenSSL didn't implement higher than TLS1.0) were structured differently than those used for SSLv2, so it was important to qualify the ciphersuite by the 'universe' it existed in. It has almost nothing to do with the protocol version actually used, which appears later in the session-param decode:
QUESTION
I have a custom UITextView class that initializes a new TextView. The delegate of this class is itself as I need code to run when the text is changed, the delegate method runs. Here is that class.
...ANSWER
Answered 2021-Jun-15 at 04:34// This is the instance that you should assign secondDelegate for
textField = TextView(hintText: "Type a message")
// Not this one, this one never gets added as a subview
let test = TextView()
test.secondDelegate = self
// The fix is here
textField.secondDelegate = self
self.addSubview(textField)
QUESTION
4 rows are stored here. Each new row is displayed when the LOAD MORE button is pressed. Each row is displayed as it should and the code works without problems. When the end is reached, a Go button should appear pointing to another page.
What's the best way to do this? I have included the code as an example.
...ANSWER
Answered 2021-Jun-14 at 09:37One way is to just rename the button when you get to the end. Then you can just test it in the $('#load-more').click(function()
function.
First, move the numberLeft
variable out of it's function so that other functions can access it. When numberLeft === 0
just rename the button with $('#load-more').text("GO ->")
QUESTION
I successfully created a timer for when buttons are clicked. When the first button is clicked, the time intervals are exactly at one second. But the moment I pressed another button that is paired with the same IBAction function, the time intervals get shorter. Essentially, after every button pressed, the time intervals get shorter and shorter.
Why is this occurring and how can I solve this?
...ANSWER
Answered 2021-Jun-14 at 19:43Because every time you tap the button, you create another timer.
QUESTION
I need to map the headers and row values based on the dataKey value.
Input JSON
...ANSWER
Answered 2021-Jun-14 at 09:02[
{
// segregate values of the same key and form respective arrays.
"operation": "shift",
"spec": {
"headers": {
"*": {
"displayName": "@(1,dataKey)"
}
},
"rows": {
"*": {
"*": "&"
}
}
}
},
{
// put every value array into temp array
"operation": "shift",
"spec": {
"*": "temp[]"
}
},
{
// map first index element as key and second index element as a value into the output
"operation": "shift",
"spec": {
"temp": {
"*": {
"1": "Data.1.@(1,[0])"
}
}
}
}
]
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