[ad_1] $now = “2014-11-12 20:20:40”; $delayed_time = “2014-11-12 20:21:00”; $diff = strtotime($delayed_time) – strtotime($now); // $diff = 20; [ad_2] solved How to get the difference in seconds in PHP?
[ad_1] df <- X – Y plyr::ldply(1:nrow(df), function(x) data.frame( min=min(df[x,], na.rm=T), max=max(df[x,], na.rm=T))) 1 [ad_2] solved How to write a function in R to calculate the min/max difference between two dataframes?
[ad_1] JDK means Java Development Kit. You need it to compile java codes. You can use a text editor to write code and execute it using terminal if you have installed JDK. An IDE is used for ease of coding. IDEs support code completion,syntax highlighting etc. You need JDK installed for using IDE. [ad_2] solved … Read more