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John Doe


26 total contributions since 2018

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Answered
How to perform operations on cell arrays?
I found using trapz is a more intuative method. I used linear acceleration so it was easy to check. I think there is a more effi...

etwa ein Monat ago | 0

Answered
Script stops running after reaching blank value during import
I use readtable for delimited text files. I've found this to work very well. Can you share the original format please if you wa...

etwa ein Monat ago | 0

Answered
How do I go about plotting the following function?
I've used random numbers. a = 5 n = [1:1:50]'; delta = 10; x(n,1) = delta - (delta*(n-a)) plot(x,n) Alternatively, you c...

etwa ein Monat ago | 0

Answered
How to write a function that run specific sections of the script
You need to use == as opposed to = ; function [a] = data_analysis(x) %UNTITLED Summary of this function goes here % Detaile...

etwa ein Monat ago | 0

Answered
Organizing and calculating with timestamps and numbers.
Create a table - a table can handle both datetime, double, single etc. t = array2table(data) You can then do your analysis as...

etwa ein Monat ago | 1

| accepted

Answered
I keep getting the error, "Unable to write to file 'xxxx.xlsx'. You may not have write permissions or the file may be open by another application."
I've updated the answer to resolve your specific issue. Though I would suggest doing all processing in MATLAB not excel since th...

etwa ein Monat ago | 0

| accepted

Answered
How to import time from an excel file into matlab
Use read table and specify your input format type. I recognise some of this code :). If your data has no header / variable nam...

etwa ein Monat ago | 1

| accepted

Answered
Creating a new data table from existing table based on condition.
If you have table t. You can create a new table (nt) as such: % x = condition 1 % y = condition 2 nt = t(t.var1 > x & t....

etwa ein Monat ago | 0

Answered
Is it possible to load a variable that can not be cleared
clearvars -except x

4 Monate ago | 0

Question


MATLAB 2018a readtable VariableNamesLine bug
Good Day All, I posed this question a long time ago which I can no longer find however there was no conclusive result anyhow I...

4 Monate ago | 2 answers | 1

2

answers

Answered
How to display quaternion number?
q = quaternion([1 2 3 4])

4 Monate ago | 1

| accepted

Question


Initialising Graphs from Live Script
Is there a method for initializing the plot window in a live script? Current I initialise a figure in the cmd window like so: ...

4 Monate ago | 0 answers | 0

0

answers

Question


Create new variable when movevar can't find a variable in a table.
I am working on order processing data. I've imported all my data using readtable, done my processing and now need to order the d...

4 Monate ago | 1 answer | 0

1

answer

Question


Create structure path from string and cell array
I have a nested structure called S. The data I want to access is in: S.Signal_00.values.y_values The path always stays the sam...

5 Monate ago | 0 answers | 0

0

answers

Question


Extracting data from multiple structures in a .mat file
Hello, I have some data which is in nested structures names an example structure is below. Signal_00.y_values.values I wa...

5 Monate ago | 1 answer | 0

1

answer

Answered
Plot datetime range from table
I've answered my own question: plot(t.Time,t,SomeData1) tStart = datetime(2019,5,13,HH,MM,SS) tEnd = datetime(2019,5,13,HH...

5 Monate ago | 0

| accepted

Question


Plot datetime range from table
Hello, I have some data in a table with a datetime column in the format 'DD-MMM-YYYY HH:MM:SS'. Usually I would just use row n...

5 Monate ago | 2 answers | 0

2

answers

Answered
How to show multiple figures per cycle and save into a specific folder
You can use the publish function - I used it very recently for an almost identicle case and was guided on here. https://uk.m...

6 Monate ago | 0

Answered
legend inside a For loop
Hello, Not quite sure what your end goal is here, multiple figures with different legends or 1 figure with many legends. T...

6 Monate ago | 0

Question


Integrate over time and differentiate to get slope
Hi All, I have a set of data with the following channels: Oil Tank temp (T1), Oil Cooler Out Temperature(T2), Pump Speed and...

6 Monate ago | 0 answers | 0

0

answers

Answered
Position of two subplots with bar charts
https://uk.mathworks.com/matlabcentral/answers/414505-legend-positioning-in-figure-w-subplots I believe the answer is in the...

7 Monate ago | 0

Answered
Max - Median - Min - Phoney Box Plot
I resolved this by using the errorplot function with the below code. In this case used 7 data sets, though this could be adju...

9 Monate ago | 0

| accepted

Question


Max - Median - Min - Phoney Box Plot
I have some data in which I need to plot the min, max and median in a similar fashion to a box plot. The x axis would have my ...

9 Monate ago | 2 answers | 0

2

answers

Question


How to plot graphs from for loop to HTML grid
Hi All, I am working on a project with mutliple channels and graphs that need to be processed. To do so I have use a for loo...

9 Monate ago | 1 answer | 0

1

answer

Question


Help with readtable opts
I have some data (example attached). I am using a readtable for loop to combine multiple CSV files in to one dataset which I...

etwa ein Jahr ago | 1 answer | 0

1

answer

Question


Readtable For Loop for importing large quantities of csv files in to Matlab
Hello, I am currently working on a project which requires me to import sequential data into matlab so that it can be process...

etwa ein Jahr ago | 1 answer | 0

1

answer