Perhaps (in R):
n_i <- cumsum( Y==l ) You should read further regarding R's logical class, and operators that work on it, and how it is coerced. -- David On 1/29/21 6:27 AM, Ablaye Ngalaba wrote: > Hello, > please, I need to calculate the indicator function as I underlined in my > attached pdf file but I can't define a code in programming language that > deals with this case. Please help me with a code whether it's in python or > R can help me. > > > > Sincerely. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.