Answered
How to solve " Error using vertcat Dimensions of arrays being concatenated are not consistent " problem ?
You probably think that your square brackets are creating a 4x1 vector. But they aren't, because of the random space characters...

2 years ago | 0

| accepted

Answered
How to fix broken function code?
Use array division here: s_2 = sum((x.*y)./(delta_y.^2)); % ^^ and here: s_5 = sum(x.^2./(delta_y.^2)); % ...

2 years ago | 0

| accepted

Answered
Excel to timetable, problem with datetime
"Can anyone see the reason?" The date format you are attempting to use does not match the dates given in the file text: there a...

2 years ago | 0

| accepted

Answered
How do I print coordinates in an (x, y, z) form?
r = pi; lambda = sqrt(2); phi = exp(1); fprintf('Our rectangular coordinates converted to cylindrical coordinates are (%0.2f,...

2 years ago | 0

Answered
Replacing a field in an structure that is subset within a larger structure
If EVENT is non-scalar them you will get that error. The correct approach is to use a comma-separated list. Lets try it right n...

2 years ago | 0

| accepted

Answered
How to convert /map uint16 to int16 maintaining the dynamic range so that [0] and [2^16-1] in uint16 beomes [-2^15] and [2^15-1] without going through double
inp = uint16([-Inf,pi,Inf]) Method one: use INT32 for the intermediate values: off = int32(intmin('int16')); out = int16(int3...

2 years ago | 3

| accepted

Answered
get interpolated values from timetable
INTERP1 accepts DATETIME objects: dt = datetime(1990,1,1,[9;10],0,0); A = [36;28]; B = [12;24]; T = table(dt,A,B) newT = ...

2 years ago | 0

| accepted

Answered
Better way to combine number with fraction?
Note that you will need to use SPRINTF (or COMPOSE etc) to get the right output when NANOSEC has fewer than the full nine digits...

2 years ago | 1

| accepted

Answered
Use info in the row based on it being the max value
The second output from MAX is the index, you can use that: [maxDiameter,idx] = max(diameter); row = mat(idx,:)

2 years ago | 0

Answered
Files read with "dir" have additional (nondesirable) characters
S = dir('C:\Users\XXX\Desktop\...\*.csv'); S(startsWith({S.name},'.')) = [];

2 years ago | 1

| accepted

Answered
Filtering the common rows between two matrices
A = [1,2,3; 4,5,6; 7,8,9] B = [1,2,3,90; 3,1,2,88; 4,5,6,17; 6,5,4,19; 7,8,9,12; 15,18,22,20] [X,Y] = ismember(sort(B(:,1:3),2...

2 years ago | 0

| accepted

Answered
Handling Undesirable Characters in Numeric Columns When Reading a CSV File
You should NOT make changes to the original data file. fnm = 'p1.csv'; opt = detectImportOptions(fnm, 'FileType','delimitedtex...

2 years ago | 0

| accepted

Answered
how to open a file from the previous folder
Note that there is absolutely no need to call PWD. Simply use '.' to refer to the current directory: relativePathToC = './../C'...

2 years ago | 0

Answered
Turning string into a variable name for a function to use
The basic problem is that you are LOADing directly into the workspace. You have already painted yourself into a corner. However,...

2 years ago | 0

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

| accepted

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

Answered
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

| accepted

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

| accepted

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

Answered
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

Answered
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

Answered
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

Answered
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

| accepted

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

| accepted

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

| accepted

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

| accepted

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

| accepted

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

| accepted

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

2 years ago | 2

Answered
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