Miner | dead simple PHP class for building SQL statements | SQL Database library
kandi X-RAY | Miner Summary
kandi X-RAY | Miner Summary
A dead simple PHP class for building SQL statements. No manual string concatenation necessary.
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Top functions reviewed by kandi - BETA
- Get criteria string .
- Merge this Miner into a Miner .
- Get the join string .
- Get the SELECT statement .
- Get the delete statement .
- Get the update statement .
- Get the join criteria using the previous table .
- Get select string
- Get a SET statement .
- Get the FROM string .
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Miner Examples and Code Snippets
Lines of Code : 21
License : No License
Copyfrom pytorch_metric_learning import losses
loss_func = losses.TripletMarginLoss()
# your training loop
for i, (data, labels) in enumerate(dataloader):
optimizer.zero_grad()
embeddings = model(data)
loss = loss_func(embeddings, labels)
loss.back # your training for-loop
for i, data in enumerate(dataloader):
optimizer.zero_grad()
embeddings = your_model(data)
augmented = your_model(your_augmentation(data))
labels = torch.arange(embeddings.size(0))
embeddings = torch.cat([embeddings, aug from pytorch_metric_learning.distances import CosineSimilarity
from pytorch_metric_learning.reducers import ThresholdReducer
from pytorch_metric_learning.regularizers import LpRegularizer
from pytorch_metric_learning import losses
loss_func = losses. Community Discussions
Trending Discussions on Miner
QUESTION
I'm just trying to start to learn about ethereum and smart contracts and I'm understanding that the execution of an smart contract happens during the process of a transaction block's validation. Am I right about it?
If so, how is executed smart contracts that have an expiration date or some sort of execution that have to happen in the future? Is part of the miner work to schedulle some smart contracts executions?
...ANSWER
Answered 2022-Apr-01 at 22:06the execution of an smart contract happens during the process of a transaction block's validation
As well as during the block mining. But yes, PoW validators run the transaction too - only this time with params (such as block.timestamp) of the block being validated to check if they get the same result (in this context state changes - storage, events, ...) as the miner.
Example:
QUESTION
How can you transform a long format dataframe with multiple sets of columns into a wide format?
...ANSWER
Answered 2022-Mar-07 at 13:37An easy way to get the expected output is to apply pivot_wider twice:
QUESTION
I have the dataframe below and create a plotly plot object with inner circles. My issue is that I want to skip the value from both the gray and the green dots.
ANSWER
Answered 2022-Mar-03 at 06:18I removed the filter so that points plotted. If you want the same tooltip in all points, you can add the text to ggplot(aes()). If you still wanted percent in the darkolivegreen points, you will need to add the text to the layers.
Just years, with text in ggplot():
QUESTION
I am stuck in performing pivot_longer() over multiple sets of columns. Here is the sample dataset
...ANSWER
Answered 2022-Feb-08 at 23:32df %>%
rename_with(~str_replace(.x,'(.*)_kg', 'kg_\\1')) %>%
pivot_longer(-c(id, uid), names_to = c('.value', 'crop'), names_sep = '_')
# A tibble: 4 x 5
id uid crop kg perc
1 1 m1 germ 23 45
2 1 m1 mineral 12 78
3 2 m2 germ 24 34
4 2 m2 mineral 17 10
QUESTION
I try to extract information from a complex string with regex. I try to extract what in the first { an last } as the content. Unfortunately, I struggle with nested {}. How is it possible to deal with this ?
I think the key is to balance the {} over the all regex by I haven't been successful so far... See example below for parenthesis:
Regular expression to match balanced parentheses
ANSWER
Answered 2021-Nov-20 at 10:33I believe the current regex can be written as
QUESTION
I am new to Smart Contracts. I want to know who runs the smart contact.
I thought the full node that serves http rpc endpoint runs the smart contracts that node received.
However solidity supports block attributes like
block.coinbase,block.timestamp,block.difficulty. If just full node not miner runs contracts, I think it's impossible. Then the block creator runs the all smart contract execution transactions that in the mined block?If miner runs smart contracts, can miner pollute timestamp of block?
ANSWER
Answered 2022-Jan-24 at 18:08The smart contract is deployed and then available on the blockchain at its address.
The one who "runs" the smart contract is the caller of a function of a contract. The one who sends the message, interacts with the contract and sends ETH. It is in a contract referred as "msg.sender" It could be an address account or a contract acount (contracts can call others' contracts function).
block.coinbase, block.timestamp, block.difficulty are just referring to the informations of the current block at time of call.
QUESTION
This is my first stack overflow question, so if I am presenting something wrong, please let me know. I am pretty new to computer programming, so I just have a small webpage where I am just implementing things that I am learning.
I made a little quiz with random trivia multiple choice questions you can take if you press a button. I am using window prompts to ask the questions and get the answers, and I have all of the questions and answers stored as objects with question/prompt and answer pairs. All of those objects are stored in an array in a variable called shortQuizPrompts. I already have the quiz working and everything, aka., It tells you after every question if you got the answer to that question right or wrong, and it gives you a grade afterwards... I also have it set up so that if you enter an answer that is not "a", "b", "c", or "d", it lets you know that it isnt a valid answer. Those sorts of things.
As of right now, you can choose how many questions long you want the quiz to be out of the 24 total questions I have so far. It just asks the questions in the order that they are stored in the array. For example, you will never be asked the last question in the array if you do not choose for the quiz to be the full 24 questions long. However, I want to make the quiz ask the questions in a random order, while also removing those questions from the array as to not ask the same question multiple times.
I have tried increasing the iterator while looping through the array to a random number from 0 to the length of however many questions they chose. Then checking to see if the iterator was larger than the length of the number of questions they chose, it would decrease the iterator until it found a question that is still in the array that it could ask...
If anyone knows how to go about doing that, it would be great. Sorry for the long question btw. I am pretty new to coding, so this is probably a simple answer, but I digress. I'm pretty sure I did everything right. Thx.
...ANSWER
Answered 2022-Jan-12 at 01:03You can shuffle the shortQuizPrompts array before starting the quiz. Array shuffle details can be found in this answer.
QUESTION
I am trying to send test USDT to a particular account in Java using the following code:
...ANSWER
Answered 2022-Jan-04 at 18:26My skills with Ethereum are still not sharp enough to give you a proper answer, but I hope you get some guidance.
The error states that you are trying to transfer by a party A certain quantity in the name of another party B, to a third one C, but the amount you are trying to transfer, using transferFrom, is greater than the one party B approved party A to send.
You can check the actual allowance between to parties using the method with the same name of your contract.
Please, consider review this integration test from the web3j library in Github. It is different than yours but I think it could be helpful.
Especially, it states that the actual transferFrom operation should be performed by the beneficiary of the allowance. Please, see the relevant code:
QUESTION
I wrote a Money-saving smart contract where users deposit ETH and define the amount of time they want to keep that ETH in the contract, EX: USER X deposits 2ETH for one year, they can only withdraw their ETH after that period.
But solidity linter keeps telling me that I should not rely on block.timestamp to make decisions.
This is the Saving struct I'm using to map every address to a balance and endTime:
ANSWER
Answered 2022-Jan-02 at 22:00Miners can manipulate block timestamp to an extent of approx. few seconds, which is enough to affect business logic depending on a second-level precision.
QUESTION
I am trying to loop through a range titled mineral and find a matching cell within a separate list titled compList only if a certain range of cells contains a numeric value. If no match is found, then the cell (a string) is copied and pasted into the next available row within compList along with the adjacent cells (numbers). If a match is found, then only the adjacent cells would be added to the existing cells.
This is what I managed to do thus far, it would paste the cell value and adjacent cells as expected, but it would continue to paste these cells even if it already exists in compList. I was not able to create a code to add those values to an existing match since I was trying to figure out this issue.
If you can, please add a brief comment line so I can learn!
Thanks in advance.
...ANSWER
Answered 2021-Dec-17 at 17:29Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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