Community Profile

photo

John


Active since 2011

Statistics

All
  • First Submission
  • Thankful Level 1
  • Solver

View badges

Content Feed

View by

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:...

5 years ago

Question


What is causing the error from matlab predict function? Also, how to format data to use in classifier validation?
Using MATLAB 2015a Classification Learner App, I've trained a Cubic SVM model. I'd like to validate a new data point with this ...

7 years ago | 2 answers | 0

2

answers

Question


how to reduce run time of this binary 2D region growing code?
The following code is part of an image processing segmentation algorithm that needs to run for 1500 images. Also, following seg...

7 years ago | 1 answer | 0

1

answer

Question


parfor error: The variable objectEdges in a parfor cannot be classified.
brief aside: Isn't the sequential processing of loop iterations bye parfor the same as the for loop? The goal is to process 1...

7 years ago | 2 answers | 0

2

answers

Question


How to input scores to the predict function
Code for calculating performance of classifier model is below. An error is received in the perfcurve function: Error using p...

7 years ago | 1 answer | 0

1

answer

Question


How to generate ROC curve using classifier model trained on one data set but tested on a new data set?
MATLAB 2015a classification learner app has used features from 91 images to train cubic svm and ensemble bagged trees classifier...

7 years ago | 0 answers | 2

0

answers

Question


Error in calculating max(max(corrImageR)) during batch image processing after completing 1st iteration (error on 2nd image to be processed)
I'm batch processing images. The algorithm involved the included line of code. The first image processes successfully, but on t...

7 years ago | 1 answer | 0

1

answer

Submitted


kirschEdge(imageIn)
Perform Kirsch's Analysis on an image for edge detection.

7 years ago | 4 downloads |

Solved


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

7 years ago

Solved


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

7 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 ...

7 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...

7 years ago

Question


How to use function structfind properly?
Hello: When I test structfind ( http://www.mathworks.com/matlabcentral/fileexchange/29808-structfind ), it's working fine. S...

7 years ago | 0 answers | 0

0

answers

Question


Image sampling of a continuous region by a discrete grid
I have a an image of an ellipse in the region [-3,3]X[-3,3] which was generated from a closed form function. I need to sample t...

8 years ago | 0 answers | 0

0

answers

Question


Error using ==> plot
I tried to complete the plot of a sin wave. This is my code: EDU>> t = 0:0.5:1; % sample points from 0 to 1 in steps of .5 ...

11 years ago | 2 answers | 0

2

answers