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dpb


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4,511 total contributions since 2012

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Answered
From nested structure to table in one line of code
Will need some additional cleanup, but the basic tranformation is as >> T=struct2table(struct2array(S)); >> T(1:10,:) ans = ...

11 minutes ago | 0

Answered
Negative zero when writing to file
The problem is one of rounding/floating point precision. The cos(3*pi/2) is mathematically zero, indeed, but it isn't quite so ...

2 hours ago | 1

Answered
Import files from a folder into Matlab and create a file list
d=dir('*.json'); for i=1:numel(d) vals{i} = jsondecode(fileread(d(i).name)); ...

2 hours ago | 0

Answered
Finding yearly average of data in a matrix
Of course there is..."grouping variables" [meanByYear,yr,yrcounts]=groupsummary(iceArea(:,2),iceArea(:,1),'mean');

6 hours ago | 0

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Answered
Finding full graph / minimum without an x range
Well, with such disparate magnitudes in terms, the interesting part is somewhat harder to envision...the second part goes to +in...

10 hours ago | 0

Answered
extracting a and b beta parameters from distribution fitter app
If your save object is mybetaObject then myBetaObject.ParameterValues % both a, b or myBetaObject.a myBetaO...

1 day ago | 0

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Answered
How to arrange month columns based on date code is run?
vnames=month(datetime(1,[1:12],1),'short'); % return dummy variable names containing short month names % engine >> circsh...

5 days ago | 0

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Answered
Function overwrites output with a different number
Besides the refactoring and code mlint suggestions removal, I think the biggest problem is the function definition line functio...

8 days ago | 0

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Answered
How to decipher date formats?
"Is it possible to get their [variant input and ambiguous formats - sic] datenum correctly in a holistical way?" "Possible?" M...

8 days ago | 0

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Answered
Errorbar Plot with Line of best fit
S-S is correct that per the documentation lsline only works for scatter plots or not connected lines with plot Perhaps just a l...

10 days ago | 0

Answered
How to remove dates in graph ?
The error ax.XAxis.TickValues=1:10:length(NewP{:,"Date"}) Error using matlab.graphics.axis.decorator.DatetimeRuler/validateTic...

10 days ago | 0

Answered
How to find a particular value from 3-d matrix?
If you're certain the value 1.75 exactly exists in the file and that's all you want exactly (to machine precision) then simply ...

12 days ago | 1

Answered
how to read and create column vectors from this txt file (attached)?
A fixedWidthImportOptions object can help here altho the heading row doesn't quite line up to make it as trivial as could otherw...

12 days ago | 0

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Answered
Bar graph for two different arrays
Didn't read doc bar did you? It'll take 1:5 on the x-axis but bar([a;b].')

12 days ago | 0

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Answered
Removing NaN in Linear Regression Problem. Error in line 66.
You don't pass the table to regress but the variables to be used in the regression -- then you won't run into the issue inside r...

12 days ago | 0

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Answered
Reordering string arrays if string is >9
<ileexchange/10959-sort_nat-natural-order-sort>

13 days ago | 1

Answered
read coordinate from a txt file
textscan is overkill for a simple csv file of the above form -- controlpoints=importdata('YOURTEXTFILE.CSV'); and you'll have ...

13 days ago | 1

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Answered
Convert cell array to double, with comma separated elements
>> v=cell2mat(cellfun(@(s) sscanf(s,'%f,').',c,'UniformOutput',false)) v = 126.5000 250.5000 22.0000 27.0000 127.500...

13 days ago | 1

Answered
Trouble adding error bars to bar graph
<Answers/379570-how-can-i-place-my-error-bar-in-separate-bar-center> <Answers/359237-how-do-i-label-each-bar-in-bar-group-with-...

13 days ago | 0

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Answered
Create a maxtrix of row x columns and add values (column-wise) in a loop
Comment moved to Answer since did seem to be the Q? asked... j=0; % initialize other array counter ...

13 days ago | 1

Answered
Use all table/timetable variables as input arguments of function without writing each variable manually.
As a start altho need more to know precisely what else to do, look at\ >> rowfun(@corrug_parameters,B3_B4,'InputVariables',{'di...

14 days ago | 0

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Answered
Output from while-loop at fixed values
Either compute the number of timesteps corresponding to your dt and desired frequency if dt is constant and output every N times...

14 days ago | 0

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Answered
Write matrix to a Tab-Delimited text file
If are only numeric values in those three columns, then why not use the numeric return values from n instead? Depending on the ...

15 days ago | 1

Answered
Matlab Simplifies Function To 0
That doesn't define a function in MATLAB syntax; it assigns the evaluation of the RHS of the assignment statement to a 3D array ...

15 days ago | 1

Answered
How to change x and y labels limts
"When I put duration i got error. When I use xtick, the label didnt; fit to reality. " Must not have tried very hard or read t...

15 days ago | 1

Answered
about a ChemName function
You just pass the struct as the argument to the function and return the same struct; there's nothing required in MATLAB to defin...

15 days ago | 0

Answered
Center of repeatative/duplicate values in Matlab
val=unique(A); iC=arrayfun(@(x) median(find(A==x)),val); for your A above >> val=unique(A); >> iC=arrayfun(@(x) median(find(...

16 days ago | 0

Answered
How to delete rows from a TimeSeries variable
delsample timeseries are different...only can address by the time values or events, not linear indexing. I've never found them...

16 days ago | 0

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Answered
How to take common data from two matrix with different dimensions
unzip ACCESS1.0.zip fd='ACCESS1.0'; A=xlsread(fullfile(fd,'ACCESS1.xlsx')); E=xlsread(fullfile(fd,'ERA5_1985_2005.xlsx')); d...

16 days ago | 0

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Answered
Why are empty square brackets used in this fsolve function?
It's an undocumented trap door that allows other parameters to be passed to the objective function; the [] placeholder bypasses ...

17 days ago | 4

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