1d:T46f,# Assign a values to a variable for instances where a condition is met The `%if%` operator allows to assign values to a variable only if a condition is met i.e. results in `TRUE`. It is supposed to be used similar to the `replace ... if` construct in Stata. ```r expr %if% condition # For example # (variable <- value) %if% (other_variable == 0) ``` ## Arguments - `expr`: An expression that assigns a value to variable - `condition`: A logical vector or a an expression that evaluates to a logical vector ## Details The 'value' that is assigned to the variable in `expr` should either be a scalar, a vector with as many elements as the condition vector has, or as many elements as the number of elements in the condition vector that are equal (or evaluate to) `TRUE`. ## Examples ```r (test_var <- 1) %if% (1:7 > 3) test_var (test_var <- 2) %if% (1:7 <= 3) test_var (test_var <- 100*test_var) %if% (1:7%%2==0) test_var # This creates a warning about non-matching lengths. (test_var <- 500:501) %if% (1:7 <= 3) test_var (test_var <- 501:503) %if% (1:7 <= 3) test_var (test_var <- 401:407) %if% (1:7 <= 3) test_var ```1e:T49a,M7.49933 0.25C3.49635 0.25 0.25 3.49593 0.25 7.50024C0.25 10.703 2.32715 13.4206 5.2081 14.3797C5.57084 14.446 5.70302 14.2222 5.70302 14.0299C5.70302 13.8576 5.69679 13.4019 5.69323 12.797C3.67661 13.235 3.25112 11.825 3.25112 11.825C2.92132 10.9874 2.44599 10.7644 2.44599 10.7644C1.78773 10.3149 2.49584 10.3238 2.49584 10.3238C3.22353 10.375 3.60629 11.0711 3.60629 11.0711C4.25298 12.1788 5.30335 11.8588 5.71638 11.6732C5.78225 11.205 5.96962 10.8854 6.17658 10.7043C4.56675 10.5209 2.87415 9.89918 2.87415 7.12104C2.87415 6.32925 3.15677 5.68257 3.62053 5.17563C3.54576 4.99226 3.29697 4.25521 3.69174 3.25691C3.69174 3.25691 4.30015 3.06196 5.68522 3.99973C6.26337 3.83906 6.8838 3.75895 7.50022 3.75583C8.1162 3.75895 8.73619 3.83906 9.31523 3.99973C10.6994 3.06196 11.3069 3.25691 11.3069 3.25691C11.7026 4.25521 11.4538 4.99226 11.3795 5.17563C11.8441 5.68257 12.1245 6.32925 12.1245 7.

assign-if function