time_frame | Provides an easy to use time frame class for Ruby | REST library

i am inserting a query from a variable into log table , but it is throwing error as below.

I want to estimate the 'best' parameters of the Intelligent Driver Car-Following Model (IDM). The 'best' refers to those parameters that produce the minimum root mean squared error between the observed and predicted speed. The following shows a reproducible example where I successfully used grid search to find the best parameters but I have been unsuccessful in running genetic algorithm to do the same.

The following IDM function in R takes in 6 parameters and outputs a dataframe of 3 columns, acceleration rate a_i, speed v_i and distance g_x_i:

i am passing a variable(v_A_TYPE) to the select list in below procedure, this variable is having string values. when i pass integer values it is taking but while passing string it is not taking. throwing error like invalid identifier .

below is the procedure code look like.

I have a custom radio component in React, when I check and uncheck the values it adds items to an object and should have true or false based on whether they are checked.

At the moment it adds the true value correctly with the name of the radio but I can't seem to find out how to work to make the option false if another option is chosen.

I am currently using

task: I need to get the EARLIEST record row based on the Time_Frame column.

Problem: Many student have multiple records (student can enroll in different schools)

table format: Student_ID, Time_Frame plus random personal information columns.

Data Sample: Not sure how to load a .xls here but, I uploaded the data for just one student on the .pgn, I need a query that will return the yellow row, based on the time_frame column as that would be the earliest enrollment for this individual. I tried the code below but it does not work.

I'm trying to code a small pomodoro-timer, it uses a while loop with an if-elif-else statement to check which timer to start.

As expected it starts with the first if-block and then modifies the variable, I would expect it to go the elif-block after that, however it seems to be stuck in the if-block. And doesn't reiterate the entire while loop code.

How to overcome this?

I have a text string of the following format:

I was trying to make the course title bold with no success. I tried using the id with no success either even if I do font-weight:bold;. Lastly, is this a good way to display college courses? I will later have to retrieve the data from a database and so far using mock up data generates tables just fine, but I'm not that familiar with displaying on the front-end.

Given a date column with a value 2020-05-01, I want to return 2020-Q2. The QUARTER() function is not available due to the Hive version we are using.

I can get the quarter number with: (INT((MONTH(yyyy_mm_dd)-1)/3)+1). When I try to combine this with the YEAR() function and strings, I get null: