Tag: fft

MenuItem and toolbar missing in new activity Android Studio Unknown Bug

I am completely new to Android Studio and just learned Object-oriented programming. My project requires me to build something on open-source code. I added a new menu item to a menu and want to start another activity once the user clicks the menu item with id: plot. The intent will be sent from if (id… Read More MenuItem and toolbar missing in new activity Android Studio Unknown Bug

MRLeave a comment

Difference between dates with HH:MM:SS format

I have a DF and I want to make the difference between dates (date and time) with HH:MM:SS result. See my example: DATE_1 <- c(’06-05-2022 11:06:48′,’04-05-2022 06:11:55′,’17-02-2022 21:06:50′) DATE_2 <- c(’06-05-2022 12:15:00′,’04-05-2022 06:35:00′,’18-02-2022 21:21:00′) DF <- data.frame(DATE_1 = lubridate::dmy_hms(DATE_1), DATE_2 = lubridate::dmy_hms(DATE_2)) My intended result is: DF <- DF %>% mutate(DIF = c(’01:08:12′,’00:23:05′,’24:14:10′)) I don’t… Read More Difference between dates with HH:MM:SS format

MRLeave a comment