assign – Tarik Billa

In R, how to make the variables inside a function available to the lower level function inside this function?(with, attach, environment)

January 8, 2024 by Tarik

Assign multiple objects to .GlobalEnv from within a function

September 20, 2023 by Tarik

R: what’s the proper way to overwrite a function from a package?

September 3, 2023 by Tarik

R: Assign variable labels of data frame columns

August 14, 2023 by Tarik

Initializing a vector of vectors having a fixed size with boost assign

May 24, 2023 by Tarik

This doesn’t use boost::assign but does what you need: vector<vector<int>> v(10, vector<int>(10,1)); This creates a vector containing 10 vectors of int, each containing 10 ints.

There are several ways to introduce variables. DEFVAR and DEFPARAMETER introduce global dynamic variables. DEFVAR optionally sets it to some value, unless it is already defined. DEFPARAMETER sets it always to the provided value. SETQ does not introduce a variable. (defparameter *number-of-processes* 10) (defvar *world* (make-world)) ; the world is made only once. Notice that … Read more

pandas assign with new column name as string

March 20, 2023 by Tarik

You can pass the keyword arguments to assign as a dictionary, like so: kwargs = {“ln(A)” : lambda x: np.log(x.A)} df.assign(**kwargs) A B ln(A) 0 1 0.500033 0.000000 1 2 -0.392229 0.693147 2 3 0.385512 1.098612 3 4 -0.029816 1.386294 4 5 -2.386748 1.609438 5 6 -1.828487 1.791759 6 7 0.096117 1.945910 7 8 -2.867469 … Read more

Assign multiple new variables on LHS in a single line

January 1, 2023 by Tarik

There is a great answer on the Struggling Through Problems Blog This is taken from there, with very minor modifications. USING THE FOLLOWING THREE FUNCTIONS (Plus one for allowing for lists of different sizes) # Generic form ‘%=%’ = function(l, r, …) UseMethod(‘%=%’) # Binary Operator ‘%=%.lbunch’ = function(l, r, …) { Envir = as.environment(-1) … Read more

How to name variables on the fly?