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# dpb

4,236 total contributions since 2012

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How can I Write a code that will allow a vector of positive integers in x, as a user input, to evaluate the equation listed below.For odd numbers we will use the following equation
x= input('\nPlease input a 5 values in vector notation:'); b=nan(size(x)); % initialize to something isodd=mod(x,2...

1 hour ago | 0

Do functions listen to global variables under while loops (Stopping functions)
pressure = readDevicepressure while pressure == 0 (x, y, z) = function(move the pressure reader to x,y,z) end only re...

1 hour ago | 0

I am not getting the correct answer when using datetime function
>> datetime(43100,'ConvertFrom','excel') ans = datetime 31-Dec-2017 00:00:00 >> You tried converting from (yr,mo,day...

1 day ago | 1

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How do I determine which model fits my data the best?
I'd start by returning the second, optional gof (goodness of fit) output variable that contains Field Valu...

2 days ago | 0

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How to display all decimal numbers for floating numbers?
I'll guess for homework Q? the answer is less esoteric than Walter's take... :) Yes, if you need more precision than the defaul...

3 days ago | 0

how can I loop a repmat function over columns of matrix?
Rereading, I guess it's just r=cell2mat(arrayfun(@(v,w) repelem(v,w,1),v,repmat(w,1,3),'uni',0)); for each array v. Naming v...

4 days ago | 0

How Do I Plotting in Time Domain?
>> format bank >> 10/22.59*17066 ans = 7554.67 >> 10 rev/22.59 rev/sec * 17066 samples/sec --> samples/10 rev...

5 days ago | 0

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Creating 2x2 matrix is slow
The attached profile specific lines constitute only 39% of the total so there's 61% elsewhere but the allocation issue using [] ...

6 days ago | 0

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How to sum the intervals in matlab
v=[1000;800]; err=[0.5;-1.7]; intvl=[0 1;-2 -1]; intvN=[3;1]; newv=v.*[1+mean(intvl,2)/100]; Above yields >> newv newv = ...

7 days ago | 0

sum of timetables for each months
totalvehicles=retime([buses;cars],'monthly',@sum);

8 days ago | 1

Scatterplot with condition on another matrix
clr=[0 0 1; 0 0 0]; % blue, black RGB triplets c=clr((A>C)+1,:); % set which based on lookup scatter(A,B,[...

8 days ago | 0

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whats wrong with this if block?
(different_salts_available==1||2||3||4||5) is bad syntax for if in MATLAB. It results in testing the result of the logical exp...

10 days ago | 0

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How can we create two vectors have normally distributed random entries with zero mean?
>> uv=randn(1000,2); >> uv=uv/sqrt(sum(uv(:,1).*uv(:,2))); >> uv(:,1).'*uv(:,2) ans = 1.0000 >> mean(uv) ans = 0....

11 days ago | 1

You could make a textimportoptions object and use it with readtable but with the text file as text, I'd just scan it and then c...

12 days ago | 0

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Generate random Bistochastic matrix with zero diagonals
function a=bistochastic(a,tol) % return bistochastic matrix from input nonnegative matrix if nargin<2, tol=0.001; end s1=sum(...

15 days ago | 3

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undefined function 'isnan' for input arguments of type 'table'
Presuming the variables in data are named y and X, then nans = isnan(data.y) | (sum(isnan(data.X), 2) > 0); You have to select...

15 days ago | 0

How can I access results from loop, that are stored in structs within a cell?
first_obs = 100; last_obs = 110; Nobs=last_obs-first_obs+1; % number rows to compute coeff_i=zeros(Nobs,3); % preallo...

17 days ago | 0

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Write cell array defined by a variable to a excel file
"a cell array that I get after processing data which needs to be written to a excel file. For some reason, fprintf is not workin...

17 days ago | 0

How to vectorize this for maximum efficiency?
>> histc(label_lin,unique(label_lin)) ans = 2 1 1 1 3 >>

18 days ago | 0

Can not terminate execution with if/for loop
What's the point of needing to type anything else after the loop has completed its three iterations? At that point you've alrea...

18 days ago | 0

(mapping toolbox) Map axes xdata, ydata and zdata meaning?
The map is still an axes underneath the hood so the internal property names are the same. But, the property name is just a name...

18 days ago | 0

Can not terminate execution with if/for loop
Your break statement is in a nested for loop that is inside the while construct. break only exits the loop construct in which i...

19 days ago | 0

Read multiple .mat files in the file path in sequence
for i=1:10 filename = sprintf('D:\matlab\0_cm(%d).mat',i); % build specific file name myVars = {'Scanning'}; S = load...

19 days ago | 0

Extracting certain lines from a text file containing both characters and numbers
Presuming records (including blank lines) are as above, fid=fopen('HB.txt'); data=cell2mat(textscan(fid,'%f%f','headerlines',...

20 days ago | 0

How do I split a sing column .txt file by line?
Again, I'd suggest there's no need to actually create multiple text files to do this...several options exist in MATLAB; the simp...

21 days ago | 0

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How to make heatmap y-axis based on column names, not column values
data = [0 280 1170 0; 62 0 0 0]; VariableNames = {'colA', 'colB', 'colC', 'colD'}; rowid= {'rowA', 'rowB'}; hHM=heatmap(rowid...

22 days ago | 0

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how to avoid scientific notation when dealing with large integers?
Well, in base MATLAB you can't have more than >> intmax('uint64') ans = uint64 18446744073709551615 >> which is only...

23 days ago | 1

Problem in plotting the string variable
Nobody seems to have stumbled onto the easy answer as of yet...leaving the variable as a string when it is clearly a categorical...

23 days ago | 0

Getting values from a for loop when specific condition met
break is like drawing the "Go To Jail" card in Monopoly--you "go directly to jail, do not pass GO, do not collect \$200". Here w...

24 days ago | 0

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