laboratory | some demo or experiment function | Augmented Reality library

I am reading data from an Excel spreadsheet, and I am able to narrow down the results to a specific date range using the following method, below. As you can see it returns only results matching the date range criteria that I prescribed and returns info from each of the three columns: "Date of inquiry Receipt", "Office" and "LocationType". However, what I wish to do is also calculate the total number of each unique value existing in the resulting "office" column. For example I need to find out in my spreadsheet that for all data less than or equal to 2021-04-04 there are the following counts: Central = 18 , Central West = 12 , East = 5, South = 3

If I were using good old fashioned SQL query language could I could use a single command that would be kind of like: "SELECT 'Office' from 2021_AutoReport.xlsx WHERE 'Date of inquery Receipt' <= '2021-04-04', JOIN OUTTER for SUM(Central), SUM(Central West), SUM(South), SUM(East) ....I'm not a SQL query pro, but hopefully you understand what I am trying to do and can advise how to do it by using dataframe queries? Thanks so much for your help!

Example of what I have so far....just need to know how the approach to answer my question:

I am working with R, and I am trying to calculate my standard deviation correctly.

My data look like this:

Sorry for such silly question. I have a df that looks like this:

I want to split tx with data.frame(do.call("rbind", strsplit(as.character(df$tx), "\\s{2,}" )), stringsAsFactors=FALSE) , how can I keep Form in the new df? Also, how can i avoid the split results auto fill if it is empty?

sample df can be build using:

I'm writing a library that will be packaged and available to install via pip on Pypi. I have a few script targets in my setup.py

I have a list of dataframes that consists chemistry information that compares the results between laboratories for around 30 analytes. Each analyte is stored as a single dataframe within the list of dataframes

I have written a function that performs ANOVA over each dataframe which works except when the number of laboratories is less than 3. ANOVA should have a minimum of 3 groups for comparison. I am attempting to put in a condition (if statement) that identifies the analytes that do not meet the 3 laboratory requirement and then return NA and if does meet the requirement it goes aheads and undertakes the operation.

A sample of my list of dataframe below

I'm an new amateur programmer that is having trouble using HTML and JavaScript together. We were tasked to make a simple program that asks us what's the maximum number, I made the logic but still having trouble with this case.

Currently this is the progress with my code

I've been working on an assignment and after writing my code and running it I have noticed that my program exits after my inputting my first user input after my switch case.

I have asked around and found out that is was due to memory allocation on my struct/pointer and have tried initializing new on my int main but it still exits without running the whole program. I am a complete beginner on this and would ask for help.

My code is posted below, any help is appreciated, thanks a lot!

This is my declaration of struct & global variables as well as the function where my program exits

Iam trying to fetch my data from my api by making an AJAX http request. The requested data come in JSON form. I cannot really understand in what format should data be formated in order to be read from column charts. For example if i try to log a property of object thedata.y then i get undefined.If i copy my whole array instead of thedata at dataPoints then it works perfect,but not by just putting the array name. What am i doing wrong? Thanks in advance

Front-end script

Hi I have this sting in a Dataframe (column is named value)