Answered

Why is str2num not recommended when it is faster in certain circumstances?

"Why is str2num not recommended when it is faster in certain circumstances?" Because it relies on EVAL. Code called by EVAL is ...

Why is str2num not recommended when it is faster in certain circumstances?

"Why is str2num not recommended when it is faster in certain circumstances?" Because it relies on EVAL. Code called by EVAL is ...

3 months ago | 0

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Answered

Function input argument block - defining multiple valid classes for input data.

"I'd like to consolidate these two functions into one function so I do not have the need for multiple files." You do not need m...

Function input argument block - defining multiple valid classes for input data.

"I'd like to consolidate these two functions into one function so I do not have the need for multiple files." You do not need m...

3 months ago | 1

| accepted

Answered

How to read an excel /csv files with columns that have both text and numbers?

fnm = 'sample.csv'; tmp = readcell(fnm, 'Delimiter',','); idx = cellfun(@ischar,tmp(:,1)); assert(all(diff(idx)<1)) nhl = nn...

How to read an excel /csv files with columns that have both text and numbers?

fnm = 'sample.csv'; tmp = readcell(fnm, 'Delimiter',','); idx = cellfun(@ischar,tmp(:,1)); assert(all(diff(idx)<1)) nhl = nn...

3 months ago | 0

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Answered

Vectorization for Two Nested for-loops

Without creating multiple copies of data in memory: A = [2 3 4; 5 2 1; 1 4 3]; B = [3 4 4; 4 2 1; 4 4 1]; C = sum(permute(A,[...

Vectorization for Two Nested for-loops

Without creating multiple copies of data in memory: A = [2 3 4; 5 2 1; 1 4 3]; B = [3 4 4; 4 2 1; 4 4 1]; C = sum(permute(A,[...

3 months ago | 0

Answered

How can.struct data be made available to non-MATLAB users?

"Can a .struct with nested structs, using a multitude of fieldnames and datalines, be converted to a non-MATLAB format like exce...

How can.struct data be made available to non-MATLAB users?

"Can a .struct with nested structs, using a multitude of fieldnames and datalines, be converted to a non-MATLAB format like exce...

3 months ago | 1

| accepted

Answered

Accessing cell array entries using arrays

B = [1,2,2,1,1; 2,1,2,1,2]; V = 1:size(B,2); A = accumarray(B.',V(:),[],@(m){m.'}) A{1,2}

Accessing cell array entries using arrays

B = [1,2,2,1,1; 2,1,2,1,2]; V = 1:size(B,2); A = accumarray(B.',V(:),[],@(m){m.'}) A{1,2}

3 months ago | 0

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Answered

Insufficient number of outputs from right hand side of equal sign to satisfy assignment.

Note that the meaning of square brackets is different in the LHS vs on the RHS. C = num2cell(b1); [app.Sis.Slippage]...

Insufficient number of outputs from right hand side of equal sign to satisfy assignment.

Note that the meaning of square brackets is different in the LHS vs on the RHS. C = num2cell(b1); [app.Sis.Slippage]...

4 months ago | 0

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Answered

Saving a Structured Array (containing plot parameters) to a mat file

Explanation: your structure is not scalar: it has nlines elements. The -struct option only works with scalar structures. Error ...

Saving a Structured Array (containing plot parameters) to a mat file

Explanation: your structure is not scalar: it has nlines elements. The -struct option only works with scalar structures. Error ...

4 months ago | 0

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Answered

Does Matlab's integral function pass the integration variable to the function handle one scalar at a time or as a vector?

"Does Matlab's integral function pass the integration variable to the function handle one scalar at a time or as a vector?" By ...

Does Matlab's integral function pass the integration variable to the function handle one scalar at a time or as a vector?

"Does Matlab's integral function pass the integration variable to the function handle one scalar at a time or as a vector?" By ...

4 months ago | 0

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Answered

How avoid exponential notation in compose

"How avoid exponential notation in compose" Explanation: the %d conversion is for integer values. Are all of your data integer ...

How avoid exponential notation in compose

"How avoid exponential notation in compose" Explanation: the %d conversion is for integer values. Are all of your data integer ...

4 months ago | 0

Answered

save tic toc in duration style

tEnd = 60*60+20 txt = mytime(tEnd) writelines(txt,'myfile.txt') Checking: type myfile.txt function str = mytime(toa) spl...

save tic toc in duration style

tEnd = 60*60+20 txt = mytime(tEnd) writelines(txt,'myfile.txt') Checking: type myfile.txt function str = mytime(toa) spl...

4 months ago | 0

Answered

Combing Date and Time Variables into ONE DateTime Vector

If you have any influence on the data design, then making these changes would simplify your data processing: save the data in c...

Combing Date and Time Variables into ONE DateTime Vector

If you have any influence on the data design, then making these changes would simplify your data processing: save the data in c...

4 months ago | 0

Answered

Readtable Delimiters on two similar files gives differing result

"One thing for sure is that all my data is under the line begining with "Point"" tA = myread('A.txt') tB = myread('B.txt') fu...

Readtable Delimiters on two similar files gives differing result

"One thing for sure is that all my data is under the line begining with "Point"" tA = myread('A.txt') tB = myread('B.txt') fu...

4 months ago | 2

Answered

How to write data from a Cell Array as multiple columns in a text or CSV file?

This actually works with vectors of different lengths (as your question shows): C = {[0;1;2;3], [4;5;6;7;8;9]}; D = {}; for k...

How to write data from a Cell Array as multiple columns in a text or CSV file?

This actually works with vectors of different lengths (as your question shows): C = {[0;1;2;3], [4;5;6;7;8;9]}; D = {}; for k...

4 months ago | 0

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Answered

Why is this simple loop not working?

"I don't know why this is happening." The problem is very simple: you do not extend x in the same way that you extend y and z. ...

Why is this simple loop not working?

"I don't know why this is happening." The problem is very simple: you do not extend x in the same way that you extend y and z. ...

4 months ago | 2

| accepted

Answered

Having a string call another string

txt = input("Enter your string: ","s"); disp("Your string was: " + txt)

Having a string call another string

txt = input("Enter your string: ","s"); disp("Your string was: " + txt)

4 months ago | 1

Answered

Extracting data from struct as array

S(1).a = 1:10; S(2).a = 11:20; S(3).a = 21:30; M = vertcat(S.a) or M = cat(1,S.a) https://www.mathworks.com/matlabcentra...

Extracting data from struct as array

S(1).a = 1:10; S(2).a = 11:20; S(3).a = 21:30; M = vertcat(S.a) or M = cat(1,S.a) https://www.mathworks.com/matlabcentra...

4 months ago | 1

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Answered

Dynamic matrix columns combinations

"any idea on to how overcome this? Do I need to write a combination function myself?" Use NDGRID with some comma-separated list...

Dynamic matrix columns combinations

"any idea on to how overcome this? Do I need to write a combination function myself?" Use NDGRID with some comma-separated list...

4 months ago | 0

Answered

How to split/segment csv file into multiple sections?

P = '.'; % absolute or relative path to where the file is saved F = fullfile(P,'test_file.csv'); O = detectImportOptions(F,'Va...

How to split/segment csv file into multiple sections?

P = '.'; % absolute or relative path to where the file is saved F = fullfile(P,'test_file.csv'); O = detectImportOptions(F,'Va...

4 months ago | 1

| accepted

Answered

Matlab can't readtable on Mac, please help me.

"how i do like this, can you show me please, thank you." P = 'absolute or relative path to where the file is saved'; F = fullf...

Matlab can't readtable on Mac, please help me.

"how i do like this, can you show me please, thank you." P = 'absolute or relative path to where the file is saved'; F = fullf...

4 months ago | 1

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Answered

How to produce an array that displays the common data values in other arrays?

A = [1,1,0;1,1,1;0,1,1] B = [1,0,1;0,1,0;1,1,1] C = [1,1,1;1,1,0;1,1,1] D = double(A & B & C)

How to produce an array that displays the common data values in other arrays?

A = [1,1,0;1,1,1;0,1,1] B = [1,0,1;0,1,0;1,1,1] C = [1,1,1;1,1,0;1,1,1] D = double(A & B & C)

4 months ago | 0

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Answered

Matlab code to delete contents of a subfolders

P = 'absolute or relative path to where the project folders are'; S = dir(fullfile(P,'**','Inputs','*.*')); for k = 1:nunel(S)...

Matlab code to delete contents of a subfolders

P = 'absolute or relative path to where the project folders are'; S = dir(fullfile(P,'**','Inputs','*.*')); for k = 1:nunel(S)...

4 months ago | 0

Answered

How to convert a 1x1 struct to double matrix (error using pan tompkin)?

"Originally, I didn't put the semicolon, I only added it because MATLAB error system recommended it. I did remove it and there's...

How to convert a 1x1 struct to double matrix (error using pan tompkin)?

"Originally, I didn't put the semicolon, I only added it because MATLAB error system recommended it. I did remove it and there's...

4 months ago | 1

| accepted

Answered

What is wrong with this code for finding out the number of significant digits after decimal?

The least unexpected number of non-zero fractional digits aka decimal places (limited to 15 significant figures of the binary fl...

What is wrong with this code for finding out the number of significant digits after decimal?

The least unexpected number of non-zero fractional digits aka decimal places (limited to 15 significant figures of the binary fl...

4 months ago | 0

Answered

Not enough input arguments

"Why I can't get the values from matrix x in function MyInput() to use in another function?" Basically because you did not call...

Not enough input arguments

"Why I can't get the values from matrix x in function MyInput() to use in another function?" Basically because you did not call...

4 months ago | 0

| accepted

Answered

Reading Multiple Excel Files, Analyzing and Indexing

Use indexing into the structure array that you already have (i.e. the output from DIR): P = 'absolute or relative path to where...

Reading Multiple Excel Files, Analyzing and Indexing

Use indexing into the structure array that you already have (i.e. the output from DIR): P = 'absolute or relative path to where...

5 months ago | 0

Answered

there is no plotting appearance

"there is no plotting appearance" Because you are plotting exactly one data point. By default there PLOT shows lines (which con...

there is no plotting appearance

"there is no plotting appearance" Because you are plotting exactly one data point. By default there PLOT shows lines (which con...

5 months ago | 0

Answered

Interpolating for multiple curves and finding the y axis value

Forget about having lots of separate variables in the workspace. Learn to use matrices! x = [0,7.1702,9.1995,9.5716,11.3641,12....

Interpolating for multiple curves and finding the y axis value

Forget about having lots of separate variables in the workspace. Learn to use matrices! x = [0,7.1702,9.1995,9.5716,11.3641,12....

5 months ago | 0

| accepted

Answered

Change date from cell to number inside array

" How do I change it from a cell to a numeric format I can use?" Use the correct type of indexing: if itin_full{1,6}>=0.9 % ...

Change date from cell to number inside array

" How do I change it from a cell to a numeric format I can use?" Use the correct type of indexing: if itin_full{1,6}>=0.9 % ...

5 months ago | 0

| accepted