Community Profile # Lily

29 total contributions since 2012

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Question

Is it possible to compute Cross entropy for support vector machine?
Hallo Is it possible to compute cross entropy (CE) for support vector machine (SVM)? For example for this gerneral problem: ...

5 years ago | 2 answers | 0

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Question

Generate a standalone matlab function for support vector machine (SVM)?
Is it possible to generate a standalone matlab function for support vector machine (SVM) classification methods in MATLAB? That ...

5 years ago | 1 answer | 0

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Question

Adding new test dataset to Neural Network
I want to add a seperate test dataset into the Pattern recognition neural network. I have following datasets: * input - 911*...

5 years ago | 1 answer | 0

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Question

Locating center of datapoints
I want to find the center of data (X and Y coordinates) and if all data points are plotted the outer line represents a circle. H...

5 years ago | 2 answers | 0

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Question

Computing the mean over 3 numbers in a vector
Hi I have a vector that I want to find the average over each 3 numbers. So if I have a vector A and sampling it over 3 I woul...

6 years ago | 2 answers | 0

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Question

Fitting datapoint to a x-axis on a figure
I'm trying to fit the x-axis on my figure so that there will be an nearly equal spacing between data points. Especially minimize...

6 years ago | 1 answer | 0

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Question

x-coordinate for specific point in a triangle
I'm trying to find a x-coordinate for the point (x,12) in triangle. The points of the are: A = (0.2, 10) B = (0.5, 10) ...

6 years ago | 2 answers | 0

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Question

Convert a string to number
Hi, I want to convert a string into a number however I don't want to use str2num since I loose extra digits (see example below)....

6 years ago | 2 answers | 0

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Question

Steparate a sting using strtok function
Hi I'm trying to separate a string (a-b-c-d) into three parts or a-b c d. I would like to use strtok function ( <http://www.m...

6 years ago | 2 answers | 1

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Question

Suming data over 10 sec period
Hi I'm trying to sum my findings over 10 sec period of time. My test data is: C = [2 3 5 1 0 9 8 7 3 0 2 3 8 0 8]; %data...

7 years ago | 3 answers | 0

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Question

Delete rows for specific elements from a matrix
Hi I'm trying to delete all rows if the second and third element is equal to zero. My if-else sentence doesn't work. Could yo...

7 years ago | 1 answer | 0

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Question

Bar with errorbars on the same figure
Hi I'm trying to plot bar with errorbars on the same figure. I tryed to use barweb (<http://www.mathworks.com/matlabcentral/f...

7 years ago | 2 answers | 0

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Question

Counting changes binary number batch
Hi If I have a binary data f.ex. (see data below) would it be possible to count how often it changes and say that we don't coun...

7 years ago | 1 answer | 0

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color histogram matlab codes
HI I like this one: colormap summer But here is a link for more color schemes: http://www.mathworks.se/help/matlab/ref/...

7 years ago | 0

Question

Inbuilt function that allows to count plus and minus signs of numbers?
Hi Is there a function inbuilt into MATLAB that allows you to count plus and minus signs of numbers? F.ex. if your data was: ...

7 years ago | 1 answer | 0

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Question

X-axis: Construct with hourly respect
HI I'm trying to construct a x-axis with respect to hours. My codes can be seen below but I'm trying to construct an 24-hour on...

7 years ago | 1 answer | 0

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Question

Load many files from the same folder using the each letter from the alphabet as a file name
Hi I want to load many files from the same folder using the each letter from the alphabet as a file name is it possible? I'm...

7 years ago | 1 answer | 0

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Question

FIGURE: plot monthly data and only present the years
Hi I'm trying to plot monthly data and only present the years on the x-axis. Is this method correct? startdate = datenum('...

7 years ago | 1 answer | 0

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Question

Fuzzy K-means clustering in 2012a MATLAB
Hi Is there an inbuilt function or good gode for 2012a MATLAB for the meothod Fuzzy K-means clustering or Fuzzy C-means cluster...

7 years ago | 0 answers | 0

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Question

Display mean +/- std in a table or matrix
Hi, is it possible to display in a matrix or table (e.g. uitable) numbers like: 5 setstr(177) 4.5 6 setstr(177) 6.4 where...

7 years ago | 2 answers | 0

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Question

Extract from lines from matrix that do not contain NaN
Hi I'm trying to ignore NAN from my matrix A and only use the lines that contain numbers. For expamle if my matrix is: ...

7 years ago | 1 answer | 0

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Question

Error between each pixel for two matrices of equal size
Hi I'm trying to find the error between to matrices of equal size. Let's say that my matrices are of size 4x4 : A = [0 1...

8 years ago | 2 answers | 0

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Question

Hi Is is possible to add a title, like in a figure, onto a uitable ( <http://www.mathworks.se/help/matlab/ref/uitable.html>)?...

8 years ago | 1 answer | 1

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Question

Labeling x-axis in bar function in a figure
Hi Is it possible to label the xabel on figure 1 with words (see code below) i.e. 1 would be come 'mean' and 2 would be come ...

8 years ago | 1 answer | 0

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Question

Open folder in Matlab
Hi I'm trying to open folder let's call it FolderA (Here is the directory: 'C:\Users\Usersname\Desktop\FolderA')in MATLAB tha...

8 years ago | 1 answer | 0

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Question

How to construct a table with several matrices
Hi. Is is possible to construct a table in MATLAB that contains four matrices? That is, if I were to have four matrices: ...

8 years ago | 5 answers | 1

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Question

Finding the diagonal vector from a square matrix
Hi I'm trying to find the diagonal of an square matrix but NOT the diagonal vector of the matrix from left to right. I'm tryi...

8 years ago | 1 answer | 0

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Question

Constructing a matrix from several diagonal matrixes (the code is included)
Hi I'm trying to construct a matrix from 5 diagonal matrixes that are repriceted as M (see code below). The first M I get is...

8 years ago | 1 answer | 0