Category "if-statement"

How to remove pairs of rows corresponding to same value in R dataframe?

For the unique pair of ID, if both corresponding rows are 0, I need to remove them. In this case, remove row #5 and #6 but not row #7 and #8. tmt.pair <- c("

Nested if statement is only executing first part

What I want my code to do I want my code to validate user input without using Regex or isDigit operators. If all the requirements of the if statements are found

R incongruity when copying a column in R with ifelse

After loading lots of xlsx sheets of multiple workbooks, I want to create a double check of the tidiness and cleanliness of the data source. I created a data fr

Longest Common Prefix in Javascript

I am trying to solve the Leet Code challenge 14. Longest Common Prefix: Write a function to find the longest common prefix string amongst an array of strings.

How to create a for loop with checking appended models

I have a list of models that I iterate through in a for loop getting their performances. I've added catboost to my model list, but when I try to add it's best e

Place the first value of Column B in Column C if Column A has same names in python pandas with loop [duplicate]

I have the following data set in python, Input I want to bring the first value of Column B that belongs to column Column A for a unique A val

Trouble simplifying conditional

I'm having trouble simplifying a conditional statement. It looks like this: There is an array of arrays like this, dice = [ [a, b], [c, d] ]. a, b, c, and d rep

Comparing non-optional value of type 'Bool' to 'nil' always returns true

I have an if-else statement where I am checking if the value coming from user defaults is nil or not like this: if defaults.bool(forKey: "abcd") != nil{

Numpy where function in python

I have a data frame like this: pd.DataFrame({'Material': ['Steel (16MnCr5)', 'X', 'X', 'X', 'Carbon black', 'Sulfur', 'Copper'], 'Weight': [4, 8, 0, 8, 6, 9, 3

Multiple Conditions or Statements in Short Hand if-else statement in python

I recently saw this if-else short hand in python and wondered is there a way to include multiple conditions and block statements in the if-else shorthand, if re

it doesn't loop but just breaks even if i input Y

def interact(): while True: try: num = int(input("Please input an integer: ")) if (num % 2) == 0: print ("{

how to use if statement in main to Create an object with user input and to use a method on the objects

I'm working on an exercise, where I need to create a subclass that has 2 constructors (1 is empty and sets the values as 0 the other one is getting the values.

zybooks 2.10.1 Finding abbreviation

I'm stuck on this challenge activity in zybooks. It's asking Complete the if-else statement to print 'LOL means laughing out loud' if user_tweet contains 'LOL'.

What is the difference between these two code structure? Nested vs single line code

if (x>0 && x<6) { break; } else if(x>6) { break; } versus if (x>0) { if (x<6)

Create a postgresql function that returns a string 'fall', 'spring' depending on year

I need to create a function that returns the string 'fall' or 'spring' depending on the month of the year. If the function was named getterm and took no paramet

"IF" with conditions across multiple columns in Excel

My dataset looks like this: I am looking for a formula to add to the column "Status" to do the following: If Name = "A" and Project = "TT" and Number > 5, w

Problems determining the 1st Sunday in a month

This following if segment is not working right. What I want to do is do something special if and only if it is the 1st Sunday of the month and something else e

How to get a specific number of cells using an array formula in Google Sheets

I want to pre-process my data like the Result section of the attached image before flattening and using it. I want to write an array formula in the cells marked

ifelse is giving me NAs when I want 0s

I am trying to create a variable using ifelse, and would like the column to be 0 when the condition is not true, but they are showing up as NA. Any tips? df$z &

How can I switch values between columns for specific rows?

I was building my data set for some accounting work and accidentally made a mistake. I'd like to switch every instance of a Credit (column journalItemLine_credi