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Combine rows and average contents in table
% smoosh edges of disjoint regions to midpoints between... edges=[0.085 0.125; 0.17 0.23; 0.27 0.45; 0.6 0.9]; e=edges.'; e=e(...

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Extracting single lines of text from a .txt file
In general, unless the file(s) are very large, it's more efficient to just read the whole file and then locate the wanted data i...

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compare two columns and their corresponding values from two different excel files
>> data1=readtable('data.xlsx');data2=readtable('Data2.xlsx'); >> setdiff(data1,data2,'rows') ans = 3×2 table count...

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Why does dir command find files not following pattern in Windows?
That's the behavior of the OS dir command under Windows; '*' matches anything including nothing. Unfortunately, in typical MS s...

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Graph plot with given range
You didn't allocate for each element of the output arrays but computed each point one-at-a-time by using an unneeded for...end l...

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combine 2 plot with different length
plot(x1,y1) hold on plot(x2,y2) or plot(x1,y1,x2,y2)

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Split a vector where NaN appears
>> x=randn(10,1);x([4 7])=nan x = 0.5080 0.2820 0.0335 NaN 1.1275 0.3502 NaN 0.02...

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How to make a script so I can choose a file from folders
While it's only documented by a very terse example, the builtin dir function will recurse directories if the search pattern cont...

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Get a subset of columns from a timeseries object as a timeseries
plot(u.Time,u.Data(:,1)) "But isn't there a simpler way similar to how I would plot a timeseries with only one variable?" Once...

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how to split a table to multiple table?
>> CT=reshape(CT,4,4,[]) CT(:,:,1) = 196 296 305 305 317 291 234 196 246 229 313 313 333 17...

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extraction of numeric data with presence of text data
fid=fopen('abc.txt','r'); abc=textscan(fid,'%s',inf,'Delimiter','\n','HeaderLines',2,'commentstyle','1','texttype','string'); ...

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How to read .txt separate by - and in dms format
>> fmt='%f-%f-%fN %f-%f-%fW %f'; >> data=cell2mat(textscan(fid,fmt,'CollectOutput',1,'HeaderLines',1)) data = 46.00 ...

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using findstr to find what you are looking for
Looks like hard way to go at it to me...I'd just download the data to local file and snarf it up ... eopdata = urlread('https:/...

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I get date info when plot a Datetime in x-axis.
Another case of TMW being too aggressive in hiding things from the end user inside graphics objects -- the year/date 'SecondaryL...

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Extract a Column from a large csv file
data=readmatrix('forward_turn_and_back.csv','range','AD:AD','NumHeaderLines',N); You'll have to set N for the number of headerl...

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how to increase the decimal place and it must be side to side as below
fmt=['%0.4f%+0.4fi\t%0.4f%+0.4fi\n']; >> for i=1:size(approx,2) fprintf(fmt,real(approx(i)),imag(approx(i)),real(exact(...

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Compare two list of strings line by line for a match and summarize results.
Don't need to explicitly loop -- MATLAB has functions builtin to do that for you. readin=lower(string(textread('readin.csv','%s...

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Compare average monthly stock return data
See the optional 'nanflag' argument to mean-- M = mean(___,nanflag) specifies whether to include or omit NaN values from the ca...

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Fill in array with different lengths of variables at different locations
The trick for stuff like this is to "grow" from the back to the front -- so the indices you haven't gotten to yet don't change b...

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How to plot discrete data in a stackedplot
There's a 'PlotType' property in the stackedplot object that has the option for 'stairs' -- none of the previous gyrations are n...

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How do I compare two graphs for X value at a specific point?
Well, as Star Strider says, the disparity in orders of magnitude between the two makes one truly wonder just how they're suppose...

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Appdesigner: Writing Data To Excel
writetable returns no arguments and needs the data to output as an argument -- read the doc first... % Button pushed function: ...

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Combining chart for comparison got error
h1.Children.Children returns a comma-separated list-- >> h1.Children.Children ans = 0×0 empty GraphicsPlaceholder array. ...

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Writing x values with subscript in the graph
hAx=gca; % save the axes handle -- may want later hAx.TickLabelInterpreter='tex'; % set tick lab...

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How to extract a column from a matrix by searching
vWant=11; vecRes=matrix_test(:,matrix_test(1,:)==vWant);

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How to plot discrete data in a stackedplot
You can get creative and use stackedplot to create the axes for you, and then go "handle-diving" to find and modify the content ...

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Log return of a timetable
To put the computed return at the end time point of the interval, augment the diff vector with a missing-value indicator--- dat...

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Merge dataset with different lengths
TT = synchronize(DAX,SP500,'intersection'); TT = synchronize(TT,NIKKEI,'intersection'); where DAX, SP500 and NIKKEI are the th...

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How and where to place the legend box in a "tiledlayout"?
Well, you have to get creative -- the following experiment t=tiledlayout(2,2); % create a 2x2 layout nexttile, pl...

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Incorporating Multiple Dummy Variables In A Regression Model
Firstly, all have to be column vectors; secondly you'll have to have the same number of observations for each to build an arra...

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