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Jorg Woehl

University of Wisconsin-Milwaukee

Last seen: 1 month ago Active since 2015

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getOSfont
Name and size of the system user interface font (default system font)

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points2axes
Conversion factors between points and axis units

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detectOS
Name and version number of the operating system

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Vectors
MATLAB toolkit for the creation of scientific drawings and illustrations

Multi-batch csv processing error
Hi Denxybel, the main problem lies in the readtable statement. Althought the documentation states that "by default, readtable cr...

1 year ago | 0

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how to identify a string in an external text file and save the text of the two following lines in arrays, by delimiters
% open textfile fid = fopen('myfile.txt'); % read line by line until the pattern is found pattern = 'A C G Y R E'; tline =...

1 year ago | 0

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delete NaN values from Matrix & use Matrix for other operations
% Sample arrays A = [1; 2; 3; 4; NaN; 6; NaN; 8; 9; 10]; B = [NaN; 12; 13; NaN; 15; 16; 17; 18; 9999; 20]; We want to get rid...

1 year ago | 0

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How to substract a loop from the first 10 cell values of the loop?
Would this work? X(2,n) = X(1,n) - X(1,mod(n-1,10)+1)

1 year ago | 0

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Find location of exact string
regexp(data, '\<sine delta 2') The \< indicates that the search string must occur at the beginning of a new word - see MATLAB r...

1 year ago | 1

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Find location of exact string
Starting with R2020b, you can use pattern with strfind, which allows you to only find matches if they are preceded by a nonlette...

1 year ago | 0

a function generating a square matrix
A = [11, 12, 13, 14; 21, 22, 23, 24; 31, 32, 33, 34; 41, 42, 43, 44] A comma (optional) starts a new column in a matrix, while ...

1 year ago | 0

How make mutiple plots in one plot
The issue is that you are opening your files in the first loop, one after another, but only the last opened file will be process...

1 year ago | 0

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Convert a structure array to a list
c = struct2cell(sol); ilaplace([c{:}].')

1 year ago | 0

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How to output a for loop as a table with each iteration and result displayed
Hi Jorge, First preallocate your table (outside the loop) according to the number of years in your list: T = table('Size', [nu...

1 year ago | 0

ode45 for non linear ODEs
The solution below follows closely the "Solve Nonstiff Equation" example in the ode45 documentation. We first need to write an...

1 year ago | 0

Extract x,y,z coordinates from figure
Hi Aidan, let's take the peaks surface plot as an example for a 3D surface plot. We create a table from the surface data and wri...

1 year ago | 0

When i covert a structure to cell array, my fieldNames disappear
Shambhavi, you can use fieldnames to extract the fieldnames from your structure and add it to the end of your new cell array. Fo...

1 year ago | 0

Invalidate user entry by using isnan or isempty function
str2double returns NaN (not-a-number) when it cannot convert text to a number. You can therefore simply use isnan to test if a n...

1 year ago | 0

Combinations of array rows with exclusion
This answer does not have any of the duplicates that are present in my previous answer: A = [20 10;20 15;20 30;22 15;25 10; 30 ...

1 year ago | 0

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Combinations of array rows with exclusion
OK, so how about this? A = [20 10;20 15;20 30;22 15;25 10; 30 10]; cellArr{1} = deleteOneRow(A); for i = 2:size(A,1)-4 ...

1 year ago | 1

Code for action when ui toggle button is pressed
Yes, that's indeed the problem - the selected button never changes because you only have one button in the button group, so the ...

1 year ago | 1

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error on using fplot
Your solution usol contains two symbolic variables, x and d, but fplot can only deal with functions of a single variable. I supp...

1 year ago | 0

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Display same image with different rotations
I assume you are talking about 2D images: % prepare an image but hide it initially (for better timing) h = imagesc(peaks, 'Vis...

1 year ago | 0

Combining Two plots with different with the same y axis and different x axis length
If the widths of your two plot boxes have an integer ratio (such as 4:1), you can use tiledlayout to do this. First create one r...

1 year ago | 0

How do I write a code to rearrage the colors in an RGB color array?
The third dimension of your 229x600 image contains the rgb values for each pixel: image1(:,:,1) is the red channel, image1(:,:,2...

1 year ago | 1

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Finding the sum of the first n primes and to use a while function
There are two issues in your code: You are testing if i is not a prime number, when you actually want to test whether it is a p...

1 year ago | 0

MATLAB Figure and LATEX
I'm not sure what the issue is, but your figure displays just fine when I save it to a png file (my preferred graphics file form...

1 year ago | 0

Merging two arrays of two different types
You are combining double values (from a) with character values (from b), which yields a character array according to MATLAB's cl...

1 year ago | 1

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How Can I Show a txt File in a GUI ?
A text area would be the way to go, as it will show a scroll bar and wrap text if the content of the textfile is larger than the...

1 year ago | 0

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