ela | yet powerful modern functional language | Functional Programming library

I have two dataframes, df1 and df2. I would like to join the two with the following conditions:

1. merge df1 and df2 on gender and Test
2. TestDate in df1 need to be within Date1 and Date2 from df2
3. all.x = TRUE (keep df1 records)

How can I handle the second part?

I have generic mergeArrays which does not depend on order of parameters. But when used inside another generic it seems result depend. But it is not understandable.

I am executing a report created in IReport 3.0 in Jaspersoft Studio 6.18.1, I have made several migrations, but this has been a bit complicated for me, when executing it in IReport 3.0 it works correctly, in Jaspersoft Studio it does not, however there are times that the reports appear to me and when I replicate the changes it does not take effect either, for example: (the following instruction is in the where of the query)

i am using sendgrid mail for sending email below is my code

I have df and I would like to calculate percentage (.x/.x[1] * 100 ) when row_number >2 and the first row in the same col is not 0. What should I do if we want to use mutate(across...? where and how can I add the part on .x[1]!=0?

mutate(across(.fns = ~ifelse(row_number() > 2 ... sprintf("%1.0f (%.2f%%)", .x, .x/.x[1] * 100), .x)))

I know there is a few questions on SO regarding the conversion of JSON file to a pandas df but nothing is working. Specifically, the JSON requests the current days information. I'm trying to return the tabular structure that corresponds with Data but I'm only getting the first dict object.

I'll list the current attempts and the resulting outputs below.

I have a dictionary, namely elas[key] made as follows:

I try to make a plot with legend for both horizontal lines and vertical lines. Now I would like to test out whether I can add if statement base on the event status.

For the df with both Delay and Sick, my codes works. But if I want to modify the my plotting part so I can use it on a df that might only have Delay or Sick, what should I with my geom_vline and scale_linetype_manualpart? for example, if I want to use my codes on df2.

I have a list of df. I would like to sort each df in lst using the info from Order. I try to use map or map2 to do this. however my codes doesn't work. Any suggestion?

I would like to know how to achive this goal using map, or lapply if that is doable. Thanks.