Answered
Remove duplicate lines in a document
txt = fileread('filteredSatellites.txt') rgx = '([^\n\r]+)\s+(1(\s+\S+){8})\s+(2(\s+\S+){8})'; tkn = regexp(txt,rgx,'tokens');...

2 years ago | 0

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Answered
Error: Unsupported use of the '=' operator. To compare values for equality, use '=='. To specify name-value arguments, check that name is a valid identifier with no surroundin
Get rid of the ellipses inside the square brackets of both macroLats and macroLongitudes: macroLats = [lots of numbers, -...

2 years ago | 0

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Is it possible to identify variables in the workspace that contain a string and save the identified variable with another name?
Assuming that you are LOADing some MAT files, then the best approach is to avoid your situation entirely, for example by LOADing...

2 years ago | 0

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Answered
padding an array with zeros in between elements
Assuming that A is sorted, here is a simple approach: A = [7,15,21,29]; B = A(1):A(end); B(~ismember(B,A)) = 0 If A is not s...

2 years ago | 1

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Answered
Read and Sort Large Amount of Audio .wav Files
As far as I know, the only way to get get the correct order DATASTORE filenames without affecting other properties/attributes is...

2 years ago | 1

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MATLAB null conditional operator
"How it could be done in most simple and elegant way?" I assume that the aim is to not change the logging calls within the proj...

2 years ago | 2

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Error Message "Array indices must be positive integers or logical values" from importing .txt file and get plot
plot(time, Ion,'fileNames', fileNames{fileidx-1}); % ^^ get rid of this

2 years ago | 0

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I have it reading from a struct with signal names and I want to extract it and input it into a 1 column array
The solution depends on the sizes of MESSAGES and SIGNALINFO (you did not tell us either of these). Perhaps this: out = {Messa...

2 years ago | 0

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How to call a MATLAB variable loaded in from a .mat file when you don't know the name of the variable beforehand
"The easiest way would be to use eval():" Use STRUCT2CELL, e.g.: C = struct2cell(load(filename)); D = C{1}; Avoid LOADing di...

2 years ago | 0

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Answered
Why Does Format of Data Returned from readtable() Depend on Import Options that are Not VariableTypes?
"Is that expected behavior?" Yes. Or at least, not really very surprising. "Why Does Format of Data Returned from readtable()...

2 years ago | 0

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Answered
Find peaks in a matrix containing zeros
A = [1,3,-1,1,5,-1,0;1,6,3,-2,0,0,0;2,3,9,-2,1,11,-1;4,1,-2,8,5,0,0;2,-2,6,-1,0,0,0;-1,13,-2,0,0,0,0] F = @(a)findpeaks(a,'Thre...

2 years ago | 2

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Answered
Plotting perpendicular lines but they are not perpendicular.
"But as you can see these do not show up as perpendicular." They are perpendicular: check the axes scales! If you want the X a...

2 years ago | 1

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Answered
Swap shape of cell array full of arrays
C = {[1,2,3,4,5], [1,2,3,4,5]; [1,2,3,4,5], [1,2,3,4,5]} F = @(a)reshape(a,1,1,[]); D = reshape(num2cell(cell2mat(cellfun(F,C,...

2 years ago | 0

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Answered
How to save current time in file name
You are trying to concatenate STRINGS... and that gives you STRING array with multiple elements, not a character vector nor a sc...

2 years ago | 1

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Answered
Find the 137th character in a file?
fnm = 'theNameOfYourFile.txt'; txt = fileread(fnm); txt(137)

2 years ago | 2

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add internal parts of a vector
A = [1;1;1;1;1;3;4;8;1;1;1;2;9;1;1;1;1;4;1;1] X = A==1; Y = cumsum([1;diff(X)>0]); Z = accumarray(Y,X)

2 years ago | 2

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error using system -- "Command argument must be either a nonmissing scalar string or a character row vector. "
"it seems the syntax of the assembled path/file to run is incorrect" True, it is a 1x6 string array. "but I don't know what it...

2 years ago | 2

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Answered
interp3 problem: the value of the last sampling coordinate is not match.
"Any insights or suggestions on how to correctly interpolate the profile between p1 and p2 would be greatly appreciated." You a...

2 years ago | 1

Answered
Updating Structure Input for Functions
Do not use nested structures. Definitely do NOT use lots of variables each named after a fruit! Ugh, no. Use a structure array...

2 years ago | 3

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Answered
Function returns different outputs with same inputs
The difference is very simple: Here you return FOUR output arguments from your function call: [e0_, e1_, e2_, e3_] = rotations...

2 years ago | 0

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Answered
matlab 'unique' is skipping rows with data
The basic problem is that your file is large, and by default READTABLE checks a limited number of rows** before deciding what da...

2 years ago | 1

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Passing functions with fixed input
The MATLAB documentation covers this here: https://www.mathworks.com/help/matlab/math/parameterizing-functions.html See also: ...

2 years ago | 1

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Answered
How to fix my attempt to vectorize counts of strings and regexpPatterns in a text file?
SearchTerms = {... 'Term_1', 'Blanket';... 'Term_2', 'blah';... 'Term_3', 'of';... 'Term_4', '(dat|not)\d{1}...

2 years ago | 2

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Answered
Localize the third vector position using regexp
txt = fileread('test.txt') rgx = '(?<=Field(\S+\s+){3})\S+'; out = regexp(txt,rgx,'once','match')

2 years ago | 0

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Answered
Can you change 0^0=1 to 0^0=0 in Matlab?
b = 0; n = 0; v = b^n v(isequal(0,b,n)) = 0 https://en.wikipedia.org/wiki/Zero_to_the_power_of_zero

2 years ago | 2

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how view the content cell array
C = {' fdfd(fg,54)'}; Some steps to remove nesting of cell arrays at the output: The cell array is superfluous so index into i...

2 years ago | 0

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Answered
Quickest way for alternate indexing a vector
u = [5,7,11,13,17,19,23,25,29,31,35,37,41,43,47,49,53,55] v = 5:2:55; v(3:3:end) = []

2 years ago | 1

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Answered
extract word before and after character
C = {'input: pilo(52),iko(54)'; 'input:iko(54)'; 'input:pilo(52),iko(54)'; 'input:pilo(52),iko(54),op(23)'} X = regexp(C,'(\w+)...

2 years ago | 1

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Answered
Accessing all fields within a struct level at once
"Is this possible to achieve without implementing a loop?" Not really, but you can hide the loop using STRUCTFUN: A.one.includ...

2 years ago | 0

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Answered
How can I convert variable size cell structure to column or row data?
C = load('RawCellData.mat').ForbBlocks D = load('DesiredColumn.mat').DesiredRow C(cellfun(@isempty,C)) = {{[]}}; E = vertcat(...

2 years ago | 0

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