dpb
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How can I link data from separate arrays?
Making harder than needs must be -- Thickness=[19.0;22.0;32.0]; Temp_data=cat(3l [0,-0.05;0.2,-0.13;0.4,0.25;0.6,0.64;0.8,0.56...
7 hours ago | 1
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How to find corresponding frequencies after viewing amplitude in descending order?
[DescendAmp,idx] = sort(peak_ft,'descend'); disp([peak_fr(idx) peak_ft])
9 hours ago | 0
plot discontinuous x axis
Divide the time vector by T(end) for each trace and then plot versus the normalized time [0 1] instead...
9 hours ago | 0
How to Enclose a Figure Title in a Box?
hT=title('This is a title','EdgeColor','k');
11 hours ago | 0
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Comparing date/time values in Matlab/ calling out date time values to use in code
Convert to a timetable and all kinds of tools are available; see <Overview Timetables> for all of the above kinds of operations
2 days ago | 0
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Creating a Histogram of Letter grades converted from number grades
One way that illustrates lookup table approach... GRADES=[0,60,69.9,73.9,76.9,79.9,83.9,86.9,89.9,94.9,95.9,100]; % letter grad...
3 days ago | 0
Bestfit value doesn't match with the plotted value
Because you used gaussian_fn= @(q,x) (q(1)^2.*exp(-2.*((x-q(2)).^2)/q(3).^2)); as your fitting function -- in which q(1) is sq...
3 days ago | 0
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Groupsummary on timetable with cell/matrix data
Took a little head-scratching, but the following appears to work as desired-- fnMN3=@(c){mean(cat(3,c{:}),3)}; % functio...
3 days ago | 0
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How to calculate the coefficient of variation in Matlab
N=30; mn=mean(reshape([time(:),speed(:)],N,[])); sd=std(reshape([time(:),speed(:)],N,[])); cv=reshape(mn./sd,[],N); return...
4 days ago | 0
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No legend when plotting fit object
Doesn't seem to be any way to prevent the builtin fit object plot() routine from adding the legend. Instead, use plot(x,myfit(...
4 days ago | 0
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How to create a new array with specific column and row thresholds from txt file
Why do you keep reverting to the hardest way possible to read in a data file? We just showed how easy it is to use readtable @...
4 days ago | 0
Multiple 2D plots in 1 3D plot
Well, your data look nothing at all like those in the sample plot and your vectors aren't of commensurate lengths, but-- plot3(...
4 days ago | 0
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Loading a 600 mb file ends up astronomically large
Attach the file (or at least a portion of it). Memory usage is only 1:1 with disk storage for numeric data types stored as stre...
4 days ago | 0
Reading csv file and counting number of lines that have a category of interest and are below a threshold
>> data=readtable('SampleDataset03.csv'); >> sum(contains(data.Category,'A')&data.Value<0.5) ans = 64 >> For this you d...
4 days ago | 0
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plot un-equally spaced data in errorbar
You're looking for x1 = [28 56 112 224]; y1 = [21.2 18.01 16.8 14.38]; sd_vct1 = [4.93 1.77 1.81 2.32]; errorbar(x1,y1,sd_vc...
4 days ago | 0
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removing spcific numbers from matrix
Don't need (and don't use) loops -- this is MATrix LABoratory, after all! :) A=A(~ismember(A,B)); or A=setxor(A,B); is the ...
5 days ago | 0
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READ TABLE WITH DIFFERENT SETTING INSIDE
It's a fignewton of looking at the text in the editor or on the screen--some was tab-delimited, some space but there's only one ...
5 days ago | 0
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Create heatmap from table, error "'XVariable' value must reference a single variable in the source table."
The x,y variables for a table are given as the names of the wanted columns; the dot notation returns the data. heatmap(data_mea...
5 days ago | 0
Save generated points in txt file
ndgrid generates X,Y as arrays; in your case 3x3. For output you need to convert to vectors before making the table... T=table...
6 days ago | 0
cell indexing, extracting rectangular subset
I just duplicated your example 5 times... tokens=tokens.'; % reshape to column cell array vals=cell2mat(cellfun...
7 days ago | 0
How to build and call an array of objects containing a table of data
How about something like test=timetable(datetime(2020,2,13+[0;sort(randi(20,4,1))]),randi([120 240],5,1),'VariableNames',{'Temp...
8 days ago | 1
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How to get real p value in the 'multicompare' output table instead of rounded number
As Walter points out beflow, that it prints an integer zero indicates the calculation of the p-value underflowed and the returne...
8 days ago | 0
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How to Compare multiple rows of the Same txt file at the same time.
Read the file(s) into memory with importdata or other high-level function appropriate to the format; then use diff() on the seco...
8 days ago | 0
Resizing Figure to Make Room for Title without Resizing Plot
hAx=gca; hAx.Position=hAx.Position.*[1 1 1 0.95]; adjusts the height of axes to be 95% of default/previous height. Adjust to ...
8 days ago | 0
fitting a sloped gaussian
First pass...overall not so great; need to do more to figure out how to model background. My spectroscopy background has dealt ...
8 days ago | 0
I am trying to find the shortest path possible in an array of numbers using MATLAB and I keep getting "Index in position 1 exceeds array bounds (must not exceed 5).". I tried changing 5 to any other number and it didn't work. Can anyone please help?
Easy to forget/overlook... n=1: ... while itr < 5 distance = distance + norm([randomA(n,1) randomA(n,2)] - [randomA(n+1,1)...
9 days ago | 0
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Writing a small epsilon in xlabel with color
W/o taking time to try to figure out specific LaTeX syntax inside MATLAB that's always a pain since know nuthink' about LaTeX ot...
9 days ago | 0
What frustrates you about MATLAB? #2
So many of the nits in graphics are just irritants/time-consuming to make things look decent -- The inconsistency by using '%g"...
9 days ago | 0
Using uigetfile to read in MATLAB array - index exceeds number of array elements
The form of load with an assignment on the LHS returns the content of the .mat file in a struct with the variable names in the ....
9 days ago | 0
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