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Bob Nbob


326 total contributions since 2016

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Question


Compare two meshes for difference in values
I feel like I should know how to do this, but apparently I don't have the patience to figure it out today. I have two 'mesh g...

1 hour ago | 1 answer | 0

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large excel data into multiple excel file using xlswrite ?
M.Prasanna kumar is definitely on the right track. The only suggestion I would make is not to create multiple new matrices, just...

2 hours ago | 0

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Compare row by row of two arrays and write in array, if there are matching values
I think intersect is a much better choice here than find. Because you are looking for specific row results I'm not sure how to ...

3 days ago | 0

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selecting columns with certain time period and placing in new array
In general, I would make an effort to extract the data using logic indexing. You can certainly convert the mdy into a datetime v...

3 days ago | 0

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Name Structure in a for loop
I'm going to guess that this line is the incorrect one: name.(field_names(k,1))(count,1) = data_struct_sorted_unique.(field_nam...

9 days ago | 0

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Empty index from loop
find(dates==i) This is not looking for the actual dates, because i is just an index integer, i.e. on the first loop you are loo...

10 days ago | 0

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How to find and remove certain text from a text file
As I mentioned, the command would only work for one line at a time. You would need to loop it to get all the lines. fid = fopen...

14 days ago | 0

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Answered
With activeX server running Excel, access the cells syntax on range property
I used to do this by creating a variable ('range' for simplicity) that was defined with string concatenation. Because you want t...

15 days ago | 0

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Operations using individual elements in a matrix?
The problem is because you are looking to index X(ii, jj) but you have defined the bounds of ii and jj as the number of elements...

16 days ago | 0

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.Selecting the data series for next loop
Is y a single value? I'm not entirely sure I know what you're asking for, but maybe something like this can work? y = randi(10...

16 days ago | 0

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Detect maximum value of multiple Excel-Files
The cleanest way that I can think of doing this is to just loop things. You may need to change the range you are looking to find...

16 days ago | 0

Solved


Find the nearest prime number
Happy 5th birthday, Cody! Since 5 is a prime number, let's have some fun looking for other prime numbers. Given a positive in...

21 days ago

Solved


Extra safe primes
Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

21 days ago

Answered
Create an excel sheet from data stored in variable used in a for loop
From what you've posted, which is a bit vague, it seems like all you need to do is index your results and then use xlswrite to p...

22 days ago | 0

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Dot indexing not supprted for variables of this type.
You're getting the error because you're calling params like a structure, 'params.DoD_phi(1),' but you previously defined params ...

22 days ago | 1

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Answered
Reading a complex text file and building a matrix
I have not been able to utilize your example file, it's a limitation on my end. That being said, this is how I would look at do...

23 days ago | 1

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Import/convert an Excel file with more worksheets into a structure with more fields, one field for each worksheet
Generally, importing multiple excel sheets is done by calling the xlsread command multiple times. One of the flags of the comman...

27 days ago | 0

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Manipulation of multiple cell arrays
1) You don't want an & for this type of logic, because you want to remove anything that is less than 0.9, OR greater than 1.1. I...

1 month ago | 0

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how can we know the index of this data? for example,i want know index of H2O
I would suggest using strfind to look up a string. result = strfind(species,'H2O');

1 month ago | 0

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Avoiding 3 nested for loops?
At first glance, I would agree that you can vectorize the two outer loops. After you create ctmd you can modify mtmd to be a rep...

1 month ago | 1

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Answered
plot for loop results
Put your plot command inside the first loop, then index Kdg to only be for k elements. for k = 1:numfiles .... plot(t...

1 month ago | 0

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Answered
How to parse text data
I need next steps ◾Convert Datacontent into cell's - like timestamp , message data-1,message data-2 ◾Put cell in pro...

1 month ago | 0

Answered
Problem with data indexing in nested structure
In my experience, nested structures do a really good job of intuitively organizing data, but are difficult to work with in matla...

1 month ago | 0

Answered
Sorting matrix based on the sum of the rows
A = randi(100, 10, 10); sums = sum(A,2); [~,I] = sort(sums); B = A(I',:); There may be a better way of doing this, but this ...

1 month ago | 1

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Graph not large enough to contain thick line
Try here.

1 month ago | 0

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New to MATLAB so need help with following
For the most part, the syntax on this is pretty straight forward. The equation itself will look very similar to how it is writte...

2 months ago | 0

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Automatic building of an array
'T_Vorgabe{c}(1,:) = S(c1,1); I just need to know whether it is correct or not!. ' As I mentioned before, the concept is soun...

2 months ago | 0

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Can I use for loop to do the same process to four tables?
To the best of my knowledge it is not possible to dynamically loop through variables. I would suggest combining the tables into ...

2 months ago | 0

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Answered
problem to get all values in for loop
I suspect you're getting the same result because you aren't changing the value of pair21 within the final loop. for L=1:length(...

2 months ago | 0

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Answered
Pulling out a number and a date + time from text file after specific lines
The most reliable way that I know of to get this is by using fgetl. file = fopen('mytextfile.txt'); % Access the file line = f...

2 months ago | 1

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