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# Nancy

14 total contributions since 2011

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Question

Splitting 1 column array
Hi all, I have various column matrices with varying number of elements from 38-202. I want to split each matrix into 5 small ...

mehr als 7 Jahre ago | 2 answers | 0

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Question

How to check if data is normally distributed
Hi all, I want to run a f-test on two samples to see if their variances are independent. Wikipedia says that the f test is se...

mehr als 7 Jahre ago | 3 answers | 1

### 3

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Question

Delete row from Matrix
I have a Matrix of 400 rows and 40 columns. I want to completely remove rows 3 and 9 to get a matrix with 398 rows. How can I do...

mehr als 7 Jahre ago | 7 answers | 4

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Question

Rotation of a set of points onto the X axis
Hi Guys, I know this is a simple problem but I am just not to able to figure out how to do it. I dont know if the code I have...

fast 8 Jahre ago | 1 answer | 0

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Question

how to display all non NaN values in a matrix
Hi, I have an array that looks like A= [NaN 1 3 NaN NaN 5 NaN NaN 6]; what function should I run to make it look like ...

fast 8 Jahre ago | 1 answer | 0

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Question

Two exponential curve fitting
Hi all, I want to fit my data to a particular type of equation and get the values of the constant. The function is of the fol...

fast 8 Jahre ago | 1 answer | 0

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Question

Truncate matrix elements to a particular length
Ok. I am revising my previous question. I have two matrices that have the X and Y coordinates of a trajectory. X= [ 0 1.1 ...

fast 8 Jahre ago | 1 answer | 0

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Question

Arrange matrix in a ascending order
Hi Guys, If I have a matrix say of the following form X = 42.5123 42.3975 42.2375 42.1167 42.1354 41.8895 ...

etwa 8 Jahre ago | 1 answer | 0

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Question

Problem with a statement in code.
Hi Guys, This should be working fine but it just isnt. Please help me. I have been using the code from this question http://...

etwa 8 Jahre ago | 1 answer | 0

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Question

Finding and removing NaN values in a matrix
Hi Guys, I am dealing with matrices of the size 1268*100. I wish to eliminate certain rows from this matrix. I do certain ope...

etwa 8 Jahre ago | 1 answer | 0

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Question

Matlab shuts down when I run program
Hey Guys, Since yesterday I have been trying to run a code in MATLAB. However MATLAB shuts down by itself when I do so. I have ...

mehr als 8 Jahre ago | 1 answer | 0

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Question

Changing colors in an image
Hi Guys, I have a 1024*1024*3 size .tif picture. The main colors in it are white, black and green. I want to reverse the colo...

mehr als 8 Jahre ago | 5 answers | 0

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Question

Plotting centroid values
Hey Guys, I find the centroid values in an image using the regionprops command. I am able to plot the centroids on the image ...

mehr als 8 Jahre ago | 1 answer | 0

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Question

Convert zeros to NAN
I have a matrix (N rows and M columns). It consists of integer values. I want to convert all the zero values from rows 1:N and c...

mehr als 8 Jahre ago | 1 answer | 0

answer