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**Content Feed**

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...

9 mois ago | 2 answers | 0

### 2

answersQuestion

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) ...

11 mois ago | 1 answer | 0

### 1

answerQuestion

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...

12 mois ago | 1 answer | 0

### 1

answer2d scan plot in matlab

what about using pcolor() command? This can also plot the data as i want

12 mois 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...

12 mois ago | 2 answers | 0

### 2

answersQuestion

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...

environ un an ago | 1 answer | 0

### 1

answerQuestion

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...

environ un an ago | 2 answers | 0

### 2

answersQuestion

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...

environ un an ago | 0 answers | 0

### 0

answersQuestion

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...

plus d'un an ago | 2 answers | 0

### 2

answersQuestion

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...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

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...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

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...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

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...

plus d'un an ago | 1 answer | 0

### 1

answercalculating 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?

plus d'un an 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...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

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...

plus d'un an ago | 3 answers | 0

### 3

answersQuestion

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...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

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...

presque 2 ans ago | 0 answers | 0

### 0

answersQuestion

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...

presque 2 ans ago | 2 answers | 1

### 2

answersQuestion

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 ...

environ 2 ans ago | 1 answer | 0

### 1

answerQuestion

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...

environ 2 ans ago | 1 answer | 0

### 1

answerQuestion

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 ± ...

environ 2 ans ago | 0 answers | 0

### 0

answersQuestion

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...

plus de 2 ans ago | 1 answer | 0

### 1

answerQuestion

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...

plus de 2 ans ago | 1 answer | 0

### 1

answerQuestion

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...

plus de 2 ans ago | 1 answer | 0

### 1

answerQuestion

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...

environ 3 ans ago | 1 answer | 0

### 1

answerQuestion

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...

plus de 3 ans ago | 3 answers | 0

### 3

answersDear All, I am new to MATLAb GUI and want to create one. My program should work in the following sequence. 1) Select option of polarity from a pop-up menu (total two options are available) 2) load file according to polarity selected 3) execute part

Thank you very much for the clarification.

plus de 3 ans ago | 0

Question

Dear All, I am new to MATLAb GUI and want to create one. My program should work in the following sequence. 1) Select option of polarity from a pop-up menu (total two options are available) 2) load file according to polarity selected 3) execute part

My Matlab script is as follows (which works perfectly but i have to change it to GUI for user readiness) R_pp=[]; ...

plus de 3 ans ago | 2 answers | 0

### 2

answersQuestion

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; ...

plus de 3 ans ago | 2 answers | 0