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Dale


NPL

Active since 2013

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

9 years ago

Question


Summation and array indexes
I am trying to write a function for an optimisation routine that requires the (total) summation of a matrix divided element by e...

9 years ago | 3 answers | 0

3

answers

Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

9 years ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

9 years ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

9 years ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

9 years ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

9 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

9 years ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

9 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

9 years ago

Question


How to solve a system of nonlinear equations with 3 unknowns, 2 equations but multiple sets of parameters
Hi, I am trying to solve for 3 unknown variables (say a,b,c) using 2 nonlinear equations (F1,F2). Normally this would be impo...

10 years ago | 1 answer | 0

1

answer

Answered
Copying (copyobj) boxplot from anova1 to new subplot
Solved by putting set(gca,'xticklabel',{''}) after the openfig command. For some reason removing the labels using set(g...

10 years ago | 1

| accepted

Answered
how to fill matrix without using for loop?
Are you trying to replicate b through A? In which case use the repmat function: A = repmat(b,24,1) Edit: Just realised tha...

10 years ago | 0

| accepted

Question


Copying (copyobj) boxplot from anova1 to new subplot
Hi all. I am using the anova1 function to produce a set of boxplots, which I then want to copy to a subplot alongside anothe...

10 years ago | 1 answer | 0

1

answer