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How to perform matrix math
Parallel to @Voss again with alternative MATLAB syntax and again reading the specific desired columns. What happened to the hea...

2 years ago | 1

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Pick out rows from an array where the 1st column is closest to a multiple of a number
Try %data=readmatrix('yourfile.xlsx'); data=[0 18 38 56 75 94 112].'; % sample data DELT=50; ...

2 years ago | 2

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Answered
I am trying to convert the date data from the CSV file to datetime, but it shows error, how do I fix this
@Voss showed you what was wrong in converting the dates -- your input format didn't match the actual format of your data. datet...

2 years ago | 0

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How do I point at certain columns in a .csv file and then run calculations on it?
" only want to look at data in columns starting at B10, C10, and D10 and then running ot the end of those columns. Can matlab po...

2 years ago | 0

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Read the dates in the excel sheet
w=warning('off','MATLAB:table:ModifiedAndSavedVarnames'); % stop annoying warning about names tS=readtable('sample.xlsx'); [he...

2 years ago | 0

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Fitting data to a Gaussian when data is a little bit skewed (but not too much)
xy=[1.00 NaN 2.00 4.00 3.00 3.00 4.00 6.00 ...

2 years ago | 0

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Full screen figure with xticklabels multiline problem
labels=string([ ... [repmat({'Alstom EMU250 ED250'},1,4), repmat({'Pesa Elf'},1,4), repmat({'ADtranz 113E EU11'},1,4), repma...

2 years ago | 0

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How to export 500 images in one file
"... pictures in the table to be saved in their pictural form?" An image when load in memory is just an array (2 or 3D) and so ...

2 years ago | 0

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Write Stream Binary Header with different precisions
Use fwrite with the 'precision' optional argument str='Unformatted file version=292498251'; % string as char() array N=10...

2 years ago | 1

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merging two table cells?
Not possible; a uitable isn't an Excel spreadsheet. To mimic the effect you could perhaps add another table with only three col...

2 years ago | 0

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How to write, Title of the Graph should be based on the input parameter values.
You didn't give us anything to work with about what the variables are, but formatting a string is simply titlestring=compose("C...

2 years ago | 0

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How to obtain residuals after using 'fitrm'?
It doesn't seem as they have implemented it directly; you'll have to compute the residuals as the difference between the resulti...

2 years ago | 0

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How to find area under the curve after converting the power spectrum from Watt to dBm
PS=0.2; %Input Power L=10; h = 6.62607015e-34; n=1.45; %Index of refraction eps0=8.854e-12; % [F/m] Vacuum permittivity...

2 years ago | 0

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fplot with two y-axis
You forgot to define the two variables to plot, but presuming they were defined, then yyaxis left fplot(Sp,[0.001 1000],"black...

2 years ago | 1

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How to get to Power Spectral Density from Power spectrum as shown in figure
fsine=10e6; L=10; PS=0.2; A=7.85e-11; c=3e8; dt=2e-12; V=1; n=1.45; %Index of refraction eps0=8.854e-12; % [F/m] Vacuum...

2 years ago | 0

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How to get a single output from a function with 2 inputs and 3 possible outputs depending on the choice made for inputs.
You don't want to print the matrix to mimic the other functions; what you want is to simply return them...although your function...

2 years ago | 0

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How to modify the images, were read by "dir" function?
montage returns only an montage object; not the individual images. Review the information at <Image Sequences and Batch Process...

2 years ago | 0

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why the give code doesn't meet my requirements?
angles = [-182 -185 189 184]; rem(angles,180) From the doc for rem one learns... "The concept of remainder after division is ...

2 years ago | 0

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QUARTERLY AVERAGE AND VARIANCE from MONTHLY DATA
Read the data in with readtimetable and then use retime. It even has <these common calendar timesteps builtin> for you.

2 years ago | 0

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How to resize axes programmatically within a GUI built with uifigure and uigridlayout?
Here's a start; I needed a break from other issues of the day so I began to reorganize in line with the appdesigner layout, but ...

2 years ago | 0

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I want to convert the large datetime data into double format.
datenum is/has been deprecated; use datetime instead. datenum doesn't have the precision of a datetime but the values above wi...

2 years ago | 1

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assign the fields of a structure correctly
Why is d1 in the reversed order? Why don't you make life simpler and reorder it to match (or vice versa with the table)? Faili...

2 years ago | 0

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Save imported vector array with matlab file for later use
When you close MATLAB itself??? No, when you close any application its working data are gone because the memory is released bac...

2 years ago | 0

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Answered
writatable row size limitation
Write to '.xlsx' file instead of '.xls' >> tX=array2table(rand(86405,16)); >> size(tX) ans = 86405 16 >> wr...

2 years ago | 0

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Answered
Contour plot of cubic interpolation with set number of contour levels
Xvec= [-1.8750 -1.1250 -0.3750 -1.8750 -1.1250 -0.3750 -1.8750 -1.1250 -0.3750 -1.8750 -1.1250 -0.3750 ...

2 years ago | 0

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Odd behavior using datetime
Another alternative without converting the numeric values to strings... dates = [4072016 2072016 12072016].'; y=rem(dates,10...

2 years ago | 0

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Odd behavior using datetime
Have a better mousetrap, I think... dates = string([4072016 2072016 12072016]).'; dt=datetime(pad(dates,8,'left','0'),'InputFo...

2 years ago | 0

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Can I used Unique to find unique x,y,z coordinates in table data?
load matlab whos tT=summaryTable1; clearvars -except tT head(tT) tT.Properties.VariableNames=strrep(tT.Properties.VariableN...

2 years ago | 0

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Answered
Odd behavior using datetime
I'm surprised the first works; it shouldn't either. See the doc for datetime <time formats>. As it notes, d Day of the m...

2 years ago | 0

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Using readtable on a csv with missing columns
f=["colA,colB,colC,colD" "1000,2000,3000" "1100,2200,3300" "1110,2220,3330" "1111,2222,3333"]; writelines(f,'tt.csv') type...

2 years ago | 1

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