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Accept 5 answers given by other contributors
Awarded to Tom on 20 Jul 2017
Feeds
Domanda
Finding structure array entries with certain values
Hello, What is the way to find all structure array entries with specific values? E.g. I tried: find(cell_data.CN == 4)...
quasi 11 anni fa | 2 risposte | 0
2
risposteDomanda
Undefined function 'sind' for input arguments of type 'sym'.
Hello, Is it not express a symbolic trigonometric function in degrees? It would save me a lot of converting if it is. Kind...
quasi 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Help with symbolic variables
Sorry, reposting this question again to see if any of you kind folk can help. Hello, I have the following to calculate ass...
quasi 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Help with symbolic variables
Hello, I have the following to calculate associated legendre polynomials (in terms of angles: http://en.wikipedia.org/wiki/As...
quasi 11 anni fa | 0 risposte | 0
0
risposteDomanda
Help with a scatter3 plot
Hello, I have: x = -1.0393 0.0844 1.3133 0.1248 1.4003 -0.6345 1.4067 -0.5673 0.4601 ...
quasi 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Simple data conversion help needed
Hello, This is probably very simple. Can anyone tell me where I'm going wrong when using strcmp: I have this user input...
quasi 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Assigning a 3D scatter plot to structure array
Hello, Is it possible to assign scatter plots in a structure array which can then be recalled individually? I currently ha...
quasi 11 anni fa | 1 risposta | 0
1
rispostaDomanda
User definition of cell contents
Hello, I have a cell which contains 4 'atom types', e.g. all_atom_type = 'Eu3+' 'Na1+' 'O2-' 'Si4+...
quasi 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Consider preallocating for speed
Hello, My lengthy program is littered with 'Consider preallocating for speed' suggestions for numerous variables. What doe...
circa 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Find elements of a vector
If I have a vector, e.g. A = [ 2 8 6 5 3 3 6 5 5 3 4 1 2 9 6] How do I return a vector which just gives single examples...
circa 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Being more concise with an IF statement
Hello, Could someone tell me if there's a more concise way (I'm sure there is) of implementing the following: if CN(cou...
circa 11 anni fa | 1 risposta | 0
1
rispostaDomanda
help using sortrows please
Hello, I can't seem to achieve my desired result of sorting the rows of a matrix into ascending order. The documentation seem...
circa 11 anni fa | 2 risposte | 0
2
risposteDomanda
Skipping calculations using if
Hello, I have the following code: for j = 1:(length(acalc)-1) for ii = (j+1):length(acalc) dotp(count2,:...
circa 11 anni fa | 1 risposta | 0
1
rispostaDomanda
removing a complex infinity
If I have elements in a matrix which are 0 + Infi, what is the best way to delete these elements? I have tried x(x==0+i...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Help with rowshift needed
I have narrowed down the problem from my previous question. I have a for loop for ashift = 1:n x = [x(:,1) - x(as...
oltre 11 anni fa | 0 risposte | 0
0
risposteDomanda
For loop help needed
Can anyone see a reason why when I implement the following for loop: for ashift = 1:n x = [x(:,1) - x(ashift) x(:,2) -...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Nested for Loop needed
Hello, Could anyone enlighten me as to how to produce the for loops required to perform the following: 2 x 3 2 x 4 2...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Nested for loop help needed
Hi guys, can anyone help me out with this one: x = A B C D E F G H I J ...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Plotting two 3D points from a textscan output
I have the following text file: Eu3+ 1 10.06037350 -4.673610300 -1.834337367 ...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Create 3D scatter plot from matrix
Hello, Could someone enlighten me how to make a 3D scatter plot from a matrix. Specifically, given a matrix of the form: A...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Converting cell array with various entry types
Hello, I have the following lines of code: fid = fopen('singleatom.txt','r'); %read as a single cell C = texts...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Need help with textscan
Hello, I've been struggling with textscan for some time now, if anyone could point me in the right direction here I'd be eter...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
Help with textscan classifier
Hello, Trying to extract data from a text file, the data is in the format: Eu3+ 1 10.06037350 -4.673610300 -1.834337367 ...
oltre 11 anni fa | 2 risposte | 0
2
risposteDomanda
Polynomial fitting prob lem
Hello, Would anyone have an idea how to prevent these large peaks and troughs occurring at the edges of a polynomial fit? ...
circa 12 anni fa | 1 risposta | 0
1
rispostaDomanda
Headings for graphs generated in a loop
Hello, Can anyone tell me how to go about having separate headings for graphs (and histograms) generated in a loop? Than...
circa 12 anni fa | 1 risposta | 0
1
rispostaDomanda
Problem creating a histogram
Hello, I am trying to create a histogram where each bin is the length of the increments in another vector. Can anyone explain...
circa 12 anni fa | 2 risposte | 0
2
risposteDomanda
Plotting polynomials side by side.
Hello, Is it possible to plot two polynomials next to each other as opposed to on top of each other? The problem being they w...
circa 12 anni fa | 2 risposte | 0
2
risposteDomanda
Using IF to remove upper and lower boundaries
Within a FOR loop, I can successfully implement a single IF statement to prevent either the upper or lower values from being man...
oltre 12 anni fa | 2 risposte | 0
2
risposteDomanda
Creating a symbolic variable, then using it as a real variable
I need my program to calculate the derivative of a function, and as far as I understand that means I need to make a symbolic var...
oltre 12 anni fa | 2 risposte | 0
2
risposteDomanda
Help with looping problem
Here I am defining x and y coordinates of rays vertically approaching a boundary (currently sin(x)) x = 0:0.1:pi rx...
oltre 12 anni fa | 4 risposte | 0
4
risposte
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