Hi,
I’d like to ask for some help in writing a loop. My situation is the following:
I have a matrix (matrix.A) containing 3 columns and 100 rows. The columns
represent parameter estimates a, b, and c. The rows contain different values
for these parameter estimates. Each row is unique.
I want to insert these parameter estimates into a model (say, y = a + bx +
cx^2) and solve for y given a separate matrix (matrix.B) of x values (where x
has a length of 1500).
I want to solve for y 100 times using each set of the parameter estimates in
matrix.A once.
At present my code looks like this and it only performs the first iteration.
For (i in 1:length(matrix.A)) { y <- matrix.A$a[[i]] + matrixA$b[[i]] *
matrix.B$x + matrixA$c[[i]] * matrix.B$x^2)
I have not been able to figure out how to loop through the rows of parameter
estimates in matrix.A. I am new to writing loops, so any assistance would be
much appreciated.
Regards,
Jessica Schedlbauer
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