# John Hunt

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**Content Feed**

How to read a text file with multiple data sets in it with a starting line?

While I was looking into this I ran into the "importdata" function which splits up my data into two parts. The first is "text da...

bijna 2 jaar ago | 0

| accepted

Question

How to read a text file with multiple data sets in it with a starting line?

I have a data file that is from a CNC machine with load cells. I want to read it in to matlab and be able to analyze it, but it...

bijna 2 jaar ago | 1 answer | 0

### 1

answerI cannot get Spectrogram to highlight a single frequency signal

dpb answered this question in the comments sin() uses radians and the conversion from radians to hertz is 1/(2pi) and 440/(2pi...

bijna 2 jaar ago | 0

| accepted

Question

I cannot get Spectrogram to highlight a single frequency signal

I want to use the spectrogram function in matlab, before I do I wanted to make sure I understand it. So I did a small example wi...

bijna 2 jaar ago | 1 answer | 0

### 1

answerQuestion

Is matlab getting rid of the string variable?

I tried to run a program that I made in matlab to write some G code and I got an error saying that the variable type sting will ...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

How can I get a second x axis in my guide gui?

I have a simple gui that is plotting 5 different plots from the same set of data. The x axis are all in position (mm), with dif...

bijna 3 jaar ago | 0 answers | 0

### 0

answersQuestion

How to switch between plotting on two different axis in one gui function

I have a data set that includes 25 sets of time, position x, y,z forces, and torque. I am using a GUI to access all of the dat...

meer dan 3 jaar ago | 1 answer | 0

### 1

answerQuestion

I made a plot and the markers are really ugly, does anyone know why my plot is doing this? (see plot below)

<</matlabcentral/answers/uploaded_files/132772/g.png>>

meer dan 3 jaar ago | 1 answer | 0

### 1

answerQuestion

How to fix plotting issues?

I am making some plots by plotting data that is in a big cell array. When I plot it on my personal laptop the picture is ugly (...

bijna 4 jaar ago | 0 answers | 0

### 0

answersQuestion

How to minimize a midpoint of a 3D line to a 3D data set?

I have two points pt1 = (36.77, 11.63, -38.82) pt2 = (31.77, 14.61, -31.09). I also have a set of data points that I need to us...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

How to group rows of data into a cell of a cell array?

I have a data that has xyz information as well as three numbers that group each point together. As an example a row might have ...

meer dan 4 jaar ago | 2 answers | 0

### 2

answersQuestion

How to find set of 3 in a 122x4 matrix?

I have a matrix that is 122x4. These have index numbers 1-36 with two only rows containing three points that are common between...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

I want to build a structure that includes multiple matrices

I want to build about 100 matrices that are just zeros that have three columns and one row. I then want to populate these m...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

How to cut duplicate rows from a matrix

I have a matrix that has 60,000+ rows and there are duplicate of rows in this matrix example: [1 2 3; 1 2 3; 2 3 3; 2 ...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

How can I create a new matrix from certain columns from another matrix?

If I have a large matrix (60000,51) and I want the first three columns and the 37-42 columns in a new matrix how can I do that?

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

How can I sort my data by within a sorting

I have a set of x,y,z data. I want to have all of the data sorted by x (least to greatest), then I want to have the y data be s...

meer dan 4 jaar ago | 2 answers | 0

### 2

answersQuestion

How to call data from a structure?

I have a structure that is 1x36. Each of the cells has data that I would like to call and use. How can I do that?

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

How can I make smaller matrices (size unknown) from a large matrix?

I have a matrix that has 51 columns and 46999 rows. The 8th column has values 1 to 36. I want to create a matrix for each valu...

meer dan 4 jaar ago | 1 answer | 0