dpb

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Weighted mean by groups
It's the wmean function definition that's doing it -- what you intended was wmean = @(w,v)mean(w.*v); trying that, id = { 'a'...

3 hours ago | 0

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Answered
Error about preallocating for speed
a = []; y = 1; for T = 25:5:1000 D = 0.0062*exp(-80000/(8.31*T)); x(y) = 1/T; %error here a(y) = D; %error here...

5 hours ago | 0

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How can I add individual datapoints and connecting lines to grouped boxchart?
fn=websave('Data_example.xlsx','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1136410/Data_example.xlsx'); tD=...

21 hours ago | 0

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When converting a .txt file to a matrix/cell, MATLAB merges some of the columns together.
C = readcell ('filename.txt'); writematrix ('filename.txt'); C ([1:40], :) =[]; % Delete rows 1-40 from the produced matrix (t...

23 hours ago | 0

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Scatter plot with mean for multiple groups
fn=websave('MATLAB_exampledata.xlsx','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1136975/MATLAB_exampledata....

2 days ago | 0

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Answered
How to draw negative values on bar when it contains negative values
That's a little more tricky and the examples don't illustrate -- but it's not terribly difficult to fix; the problem is 'Vertica...

2 days ago | 0

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Answered
Stacked plot graphics, trying to color multiple lines on one y-axis.
OK, had just a few more minutes -- the real answer is that there's a 'LineProperties' handle under the stacked plot object handl...

2 days ago | 0

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Drawing different coloured bar plots according to different conditions
Well, let's see if I parsed this correctly... data =[ 1 1 2 1 2 35 40 23 36 0 0 1...

3 days ago | 1

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Answered
how to avoid getting 0 overlap on the pie chart?
I've never tried a legend with a pie chart; I suppose it also probably works somehow... Well, the patch handle is two objects p...

3 days ago | 0

Answered
How to use dir function with customized number of folders
Go ahead and read all the files into the dir() stuct and then do the culling there... It's easy enough to parse those filename ...

3 days ago | 1

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Duplicate elements in each row
Sure, if am reading the desired output correctly -- NB it appears your c variable is indexed incorrectly; it should be a logical...

3 days ago | 0

Answered
Why my results of regress function and fitlm function are different?
I don't see that...I'm guessing a different y vector, somehow, maybe??? x=[1 2 3 4 5 6 7 8 9 10].'; y=[4 5 2 7 2 8 10 2 1 5].'...

3 days ago | 0

Answered
Looping through object array, possible to get an iterator to index into the object array?
"The MATLAB way" would be to write isConditon=(EvaluateLogicalExpressionOverTheRange); myObjectArray(isCondition)=[]; or the ...

3 days ago | 0

Answered
Color Scatter plot based on values in another column
You can't use such a grouping as is, create a grouping variable... edges=[0.5 1.5:0.5:3.5 inf]; g=discretize(Z); hSC=scatter(...

3 days ago | 0

Answered
How Timelines Unify in subplot
fn1=websave('compound_tide_1516_data_wl_3.mat','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1134780/compound_...

4 days ago | 0

Answered
Plot boxplot/boxchart outliers in different colors by goups
fn=websave('sub_table.mat','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1134300/sub_table.mat'); load(fn) i...

5 days ago | 1

Answered
Is it possible to create such a Visualization in Matlab?
With all the amenities, it'll take a fair amount of effort, although one could undoubtedly create a crude replication of the wal...

5 days ago | 0

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Answered
How can I read rows from a CSV outside of datalines using readtable
"Do I just have to run textscan or readtable again to read those two lines separately?" Yes, unfortunately readtable doesn't ha...

5 days ago | 0

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Answered
How to find parent uifigure for a child several layers down
" I want to avoid having to pass the figure handle down through each layer." In an app, data are all global anyway, so save the...

5 days ago | 0

Answered
How can I change rows that appeared more than once to missing rows
A=[ 2005.00 1.00000 0.000000 0.000000 0.000000 2005.00 2.00000 0.000000 0.000000 0.000000 2...

5 days ago | 0

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Answered
Irregular Arrays for fixed.Interval Objects
Never heard of them, but never used/don't have the FixedPoint TB ... all my micro work occurred way before any of these toolsets...

6 days ago | 0

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Answered
Stacked plot graphics, trying to color multiple lines on one y-axis.
There's an array in the <'StackedLineProperties'> gotten to by the links in the "See Also" section of the documentation.

6 days ago | 0

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Answered
plotting 4 by 1 tiles using tiledlayout function do not produce figure properly
Well, there's only so much room in a default figure and as Dolly Parton told Johnny Carson one night, "You can't put 10 pounds o...

6 days ago | 0

Answered
Combining existing figures, each in its own tile
See copyobj It's pretty easy if just copying an axes and its content to a new figure; when it's a new axes that's been created ...

6 days ago | 0

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Answered
how to input data into an array from csv files in a for loop
You loop above would work except you use the variable na as both a dynamic file name to read and then overwirite it with the ret...

6 days ago | 1

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Answered
interpolate (extrapolate?) the values in between two matrices using existing data
A = [1, 2, 3, 4, 5; 0.3654, 0.3634, 0.3663, 0.3665, 0.3677]; B = [16, 17, 18, 19, 20; 0.4653, 0.4636, 0.4652, 0.4620, 0.4715];...

7 days ago | 0

Answered
Using regexpressions with 'dir' function
"I woudl like to know if it is possible to use reg expressions with a 'dir' function." Nope. Unsupported by the OS; "filename ...

7 days ago | 1

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Answered
Resize only height, not width of spectrogram
You don't show how you're trying the resize operation but spectrogram(...) plots into the current axes and if you size the axes ...

7 days ago | 0

Answered
Customise colorbar labels (exponent)
@Star Strider is on the right track; the colorbar numeric ruler handle is hidden, however, but it is there and writeable -- For...

7 days ago | 0

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Answered
Looking to find data in a spreadsheet via user prompts
For the above correlation (or any similar that is linear in the two variables), you can simply compute the case ID; you don't ne...

7 days ago | 0

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