WebIn R, you can use the aggregate function to compute summary statistics for subsets of the data. This function is very similar to the tapply function, but you can also input a formula or a time series object and in addition, the output is of class data.frame. Web29 aug. 2014 · The dplyr select function selects specific columns from a data frame. To return unique values in a particular column of data, you can use the group_by function. …
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Web17 jan. 2024 · To do this, we can create a user-defined function using the code below. 1 compute_sd <- function (x) { 2 sqrt (sum ( (x-mean (x))^2/ (length (x)-1))) 3 } {r} Once we have created the function, we can call the function to get the desired computation. 1 compute_sd (df1$Income) {r} Output: 1 [1] 486281.1 2 Nested Functions Web10 apr. 2024 · DUNEDIN, Fla. - Daulton Varsho was helping his sister prepare for a holiday party in Chili, Wisconsin, when he checked his phone on Dec. 23. He had missed a call from Arizona Diamondbacks general ... biware toha
Count Unique Values in R - GeeksforGeeks
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