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Sumera Yamin


Last seen: 1 month ago
35 total contributions since 2018

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Question


saving image file using imread
Hi i try to save an image file but gets the following error. I could not seem to correct it. Any help is appreciated. imwri...

2 months ago | 2 answers | 0

2

answers

Question


averaging images and subtracting one image from the other
Hi, I have a basic image processing question. I am dealing with two sets of images. Lets say image A (average of 10 image sets) ...

4 months ago | 1 answer | 0

1

answer

Question


storing values of for loop in a matrix
Hi, i have a basic problem. i am using nested for loops x and y and calculating variable z. the variable z is over written at ea...

4 months ago | 1 answer | 0

1

answer

Answered
2d scan plot in matlab
what about using pcolor() command? This can also plot the data as i want

4 months ago | 0

Question


2d scan plot in matlab
Hi, I want to scan over 2 quantities lets say x and y. For every value of x, I scan over a range of y and record value z for ev...

4 months ago | 2 answers | 0

2

answers

Question


change in histogram distributions
Hi, is it possible to flip a histogram around the peak value? I do not want to flip the axis. Just for performing some checks, i...

6 months ago | 1 answer | 0

1

answer

Question


plotting intensity distributions on an image
I have an image and i can calculate sum of intensities along x and y axis using following code. i want to plot the sum of inten...

7 months ago | 2 answers | 0

2

answers

Question


plotting plus minus 10% variation of a vector in matlab
Hi, I need some help with plotting. I have plotted two vectors A and B. Now I want to introduce a variation in vector A (10% var...

7 months ago | 0 answers | 0

0

answers

Question


markers not getting joined in plot
I came across strange problem in matlab, i did a simple line plot using following code in a loop. i want to draw the line joini...

10 months ago | 2 answers | 0

2

answers

Question


running an external program by changing input text file for every iteration in windows.
Hello, i want to run an external program in matlab by changing the value of a certain parameter in the input text file. I want t...

10 months ago | 1 answer | 0

1

answer

Question


model for fitting polynomial of degree 3
Hi, i want to use 'fitlm' for fitting polynomial of degree 3. Is there some builtin name for the model? For example, for degree...

10 months ago | 1 answer | 0

1

answer

Question


confidence interval for least square fitting
Hi, i have a system of equations of the form Ax=b. with A and b known matrics, i calculates x using least square method. Now i w...

10 months ago | 1 answer | 0

1

answer

Question


computing error on least square fitting
Hi, i slove a system of equations (Ax-b) using least square method. i get an output with x like [2.5; -11.1; 0.8; 0.5]. the stat...

10 months ago | 1 answer | 0

1

answer

Answered
calculating error while averaging multiple images
many thanks for this analyzer, it gives me attached error. Also what is mask and what does clear mask does?

10 months ago | 0

Question


plotting error bars in both x and y data
Hi, i want to plot data set x vs y. Now i have different error valuses in x and y. I want to plot error in both planes. The comm...

10 months ago | 1 answer | 0

1

answer

Question


calculating error while averaging multiple images
Hi, I have a simple problem and needs guidance. I have 15 image files. I want to calculate the average of these images and calcu...

11 months ago | 3 answers | 0

3

answers

Question


Error while starting a gui
I created a matlab gui to load some text files and process the data it contains. The GUI works all fine, but whenever i load the...

11 months ago | 1 answer | 0

1

answer

Question


reading text files in different folders and combining them
Hi i have multiple text files in different folderswith data in same format ( 2000 rows and 7 columns). i want to combine the dat...

1 year ago | 0 answers | 0

0

answers

Question


getting a NaN in correlation coefficient
Hi, i have a simple problem which unfortunately i am unable to understand. I have matrices and i am trying to calculate correla...

1 year ago | 2 answers | 0

2

answers

Question


Loading multiple images, taking mean of them and subtracting background
Hi, I am new to the field of image analysis. my problem is that i want to load multiple images (lets say 20), take the mean of ...

1 year ago | 1 answer | 0

1

answer

Question


Displaying matrix of correlation coefficients
Hi, i have a large matrix of correlation coefficients, which i am displaying using imagesc function. It gives me the imageof the...

1 year ago | 1 answer | 0

1

answer

Question


plotting sets of data for an nxn matrix, where each element of a matrix is an array
Hi, I have two sets of variables. (a1, a2, ….a10) and (b1, b2, ….b15). I am changing 1st set of variables (a’s from let’s say ± ...

1 year ago | 0 answers | 0

0

answers

Question


counting total no of particles in a bin in histogram
Hi, i have a basic problem. I had made a histogram with nbins=100. I want to count the number of particles of that bin which h...

2 years ago | 1 answer | 0

1

answer

Question


plotting 2D data with respect to a third property
Hi, i have a data, lets say x and y column vectors, and i want to plot the data ccording toa third property represented by colum...

2 years ago | 1 answer | 0

1

answer

Question


Normalization of colorbar showing bincounts of binscatter
I am using bin scatter to plot my 2D data. I want to normalize my bin counts from 0-1 in the color bar instaed of absolute numbe...

2 years ago | 1 answer | 0

1

answer

Question


reading data from columns of multiple text files
Hi all, my question is a bit basic. I want want to read data of columns and individually store values of each in the form of an...

2 years ago | 1 answer | 0

1

answer

Question


settings values of radio buttons in GUI
hello MATLAB community, is it possible to set values of radio buttons in GUI other than 0 or 1. I have a panel with four options...

3 years ago | 3 answers | 0

3

answers

Question


solving system of equations using singular value decomposition and fsolve
Hello, i have a system of equations which i want to solve. My simplified system is shown below. k1=0.6828; k2=1.3656; ...

3 years ago | 2 answers | 0

2

answers

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