# Stephen

Suspensa Vix Via Fit

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**Content Feed**

How to remove decimals digits from datetime arrays?

Assuming that the goal is to truncate at some precision (which is totally independent of the FORMAT), then this works: T = date...

circa 16 ore ago | 0

| accepted

Error when converting Matlab time (double) to datetime (raw data captured from RealTerm)

"Why the clock time jumps from '05:01:59.971000000' to '05:01:00.230000000' if the double type times are sequential?" Because y...

circa 16 ore ago | 0

How to create 4D matrix with several 3D matrix??

C = {all of your N 3D array in one cell array}; A = permute(cat(4,C{:}),[4,1,2,3]); But it would be simpler and more efficient...

circa 21 ore ago | 0

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how to parse different sections of text file into separate matrices

TEXTSCAN makes this relatively easy: out = {}; fmt = repmat('%f',1,7); opt = {'CollectOutput',true}; fid = fopen('test.txt')...

1 giorno ago | 0

| accepted

Question about using ismembertol function

"The result should show that A has not been found in B... You do not explain why you think that. I am guessing that you misunde...

1 giorno ago | 1

| accepted

How to get two arrays from .txt file?

MATLAB does not have ragged arrays, you could import them as vectors, e.g.: format short G str = fileread('arrays2.txt'); tmp...

1 giorno ago | 1

| accepted

Loop through field variables named AnB, where n is an arithmetic value

for ii = 1:9 fnm = sprintf('B1N%dFy',ii); Stdwind_pstill.OutputChannels(k).(fnm) end https://www.mathworks.com/help/...

1 giorno ago | 0

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How to split binary cells and convert them to dec?

More efficient than using CELLFUN: C = {'0100101000101000';'0100101000101000';'0100101000101000';'0100101000101000'} V = [4,2,...

2 giorni ago | 0

I want to make a time series from 2016/1/1 00:00 to 2016/12/30 00:00 with one hour difference

V = datetime(2016,1,1):hours(1):datetime(2016,12,20); V = V(:)

2 giorni ago | 1

| accepted

access multiple csv files from different folder

This should get you started. Because you did not upload any sample files I could not test it, therefore it will probably not wor...

2 giorni ago | 0

How to make two seperate list of files from one list of files?

all_files = dir(fullfile(Folder, '*.mat')); green_files = all_files([2,3,7,8,12,13]) red_files = all_files([4,5,9,10,14,15])...

3 giorni ago | 0

| accepted

Moving Bulk MATLAB file to different folders

P = 'absolute or relative path to where the files are saved': S = dir(fullfile(P,'*.mat')) for k = 1:numel(S) [~,N,~] = f...

3 giorni ago | 0

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Reading all values as a string from excel file

In Excel dates are stored as serial date numbers, so what you are getting is the raw data. The best solution is to use READMATR...

3 giorni ago | 0

How do I convert a 2d matrix to a 3d matrix and vice versa efficiently?

format compact A(:,:,1) = [1,2;3,4;5,6]'; A(:,:,2) = [10,20;30,40;50,60]'; A(:,:,3) = [11,21;31,41;51,61]'; A(:,:,4) = [100,...

6 giorni ago | 0

| accepted

Submitted

Numeric to Ordinal-String

Convert numeric values to a string array of integers with ordinal suffixes. Fully vectorized!

6 giorni ago | 3 downloads |

Submitted

Number to Yllion

Convert a number to text giving the value using Donald Knuth's Yllion naming scheme.

6 giorni ago | 1 download |

How to find the index of the minimum value in a matrix.

Where M is your matrix: [R,C] = find(M==min(M(:))) or [~,X] = min(M(:)); % or [~,X] = min(M,[],'all','linear'); [R,C] = ind2...

7 giorni ago | 1

Get all unique combinations of 2 columns from a table

V = {'Item1','Item2','Item3','Item4'}; T = table(1, 5, 7 ,10, 'VariableNames',V) X = nchoosek(1:numel(V),2); D = diff(T{:,V}(...

8 giorni ago | 1

| accepted

How do I transform this format 202007011030 (2020 07 01 10:30) into a readabel format?

You can easily import as DATETIME, no need to import as text nor fiddle around with text: fid = fopen('Fehmarn_Wind_date.txt','...

8 giorni ago | 0

| accepted

How to create a 3D matrix from subtracting 2D matrices (like creating 2D matrix from subtracting vectors)?

C = permute(A,[1,3,2]) - permute(B,[3,2,1])

8 giorni ago | 1

| accepted

Reading text file data with different data formats

Move the "header" to the top: txt = fileread('sample test data.txt'); [hdr,spl] = regexp(txt,'^#[^\n]+','match','split','linea...

8 giorni ago | 1

Use of assignment '=' in plot command?

That name-value sytnax was introduced in R2021a: y=1:10; plot(y,'.-',linewidth=2) % ^^^^^^^^^^^ this syntax introdu...

9 giorni ago | 0

| accepted

Write sections of a long string as new lines in a text document

sub = 'XYZYXYZYZYZXYZYXYZ0XYXYXYX'; tmp = split(sub,'0'); fprintf('%s\n',tmp{:})

9 giorni ago | 0

| accepted

How to save a matrix data with a concatenated variable name?

It is simpler and more efficient to use a structure: C = {'PrimSpeed','SecSpeed'}; S = struct(); for k = 1:numel(C) ...

10 giorni ago | 0

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Find corresponding element in same row as given value in matrix

Assuming that A and B are you matrices, and that the Y values are in the second columns: [valA,idx] = max(A(:,2)) valB = B(idx...

12 giorni ago | 0

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What is the best practice to recursively extract data from a nested structure in matlab?

S=struct(); S.case='1'; S.type='A'; S.values.model1.case='2'; S.values.model1.type='C'; S.values.model1.values.mission.case...

15 giorni ago | 0

| accepted

Identifying numbers within a long string containing multiple occurrences of text and numbers in one row

Simpler and gives the requested output: str = 'x y z p (Pa)...

15 giorni ago | 0

| accepted