Community Profile

photo

dpb


Last seen: Today
5.096 total contributions since 2012

Contact

dpb's Badges

  • First Review
  • Master
  • Thankful Level 2
  • 36 Month Streak
  • Revival Level 1
  • Knowledgeable Level 4
  • First Answer
  • Solver

View details...

Contributions in
View by

Answered
How to use Xlswrite command in actxserver and how to avoid script gets hanged due to hworkbook.close command?
". I just need to avoid xlswrite in my command" Indeed. You don't want to be running dueling ActiveX processors at the same ti...

32 minuten ago | 0

Answered
Fill in missing data, unrecorded values, multiple columns
"am somewhat new to matlab and this is all I need help with..." In that case, you're doing well indeed! Congratulations!!! :)...

ongeveer een uur ago | 0

Answered
How to code an equation with a variable that implies to all cell and save in same size of input array (using nested for loop)
data =xlsread('***'); minOverall=min(data,[],'all'); rngOverall=range(data,'all'); data=(data-minOverall)/rngOverall; Given ...

ongeveer 3 uur ago | 0

Answered
How to return entire elements of a column of a matrix while that column includes maximum value of among all other elements of matrix
[~,ix]=max(max(A)); % return column of max of 2D array B=A(:,ix); % the resulting column Too bad there's...

ongeveer 20 uur ago | 0

| accepted

Answered
Change file matlab workspace name as the folder name
" 'POWER.mat' , and the folder name is 'Results2021'" Well, it depends on whether you have already created the .mat file by hav...

ongeveer 21 uur ago | 1

| accepted

Answered
Three variables (two independent) 3D plotting
M=1; N=2; flg=true; for B=-20:20; X=M+B;l T=[]; for L=-10:10; Y=N+X; r=B+Y+L^2; sca...

ongeveer 22 uur ago | 0

Answered
How can we convert struct file to txt file?
arrayfun(@(s) writematrix([s.S s.F],[s.ID '.txt']),structWheeze)

ongeveer 23 uur ago | 0

| accepted

Answered
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...

2 dagen ago | 1

| accepted

Answered
How to find corresponding frequencies after viewing amplitude in descending order?
[DescendAmp,idx] = sort(peak_ft,'descend'); disp([peak_fr(idx) peak_ft])

2 dagen ago | 0

Answered
plot discontinuous x axis
Divide the time vector by T(end) for each trace and then plot versus the normalized time [0 1] instead...

2 dagen ago | 0

Answered
How to Enclose a Figure Title in a Box?
hT=title('This is a title','EdgeColor','k');

2 dagen ago | 0

| accepted

Answered
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

4 dagen ago | 0

| accepted

Answered
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...

5 dagen ago | 0

Answered
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...

5 dagen ago | 0

| accepted

Answered
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...

5 dagen ago | 0

| accepted

Answered
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...

6 dagen ago | 0

| accepted

Answered
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(...

6 dagen ago | 0

| accepted

Answered
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 @...

6 dagen ago | 0

Answered
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(...

6 dagen ago | 0

| accepted

Answered
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...

6 dagen ago | 0

Answered
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...

6 dagen ago | 0

| accepted

Answered
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...

6 dagen ago | 0

| accepted

Answered
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 ...

7 dagen ago | 0

| accepted

Answered
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 ...

7 dagen ago | 0

| accepted

Answered
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...

7 dagen ago | 0

Answered
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...

8 dagen ago | 0

Answered
cell indexing, extracting rectangular subset
I just duplicated your example 5 times... tokens=tokens.'; % reshape to column cell array vals=cell2mat(cellfun...

9 dagen ago | 0

Answered
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...

10 dagen ago | 1

| accepted

Answered
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...

10 dagen ago | 0

| accepted

Answered
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...

10 dagen ago | 0

Load more