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Accept 5 answers given by other contributors
Awarded to Tom on 20 Jul 2017
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Frage
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)...
etwa 10 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Help with symbolic variables
Hello, I have the following to calculate associated legendre polynomials (in terms of angles: http://en.wikipedia.org/wiki/As...
etwa 10 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
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 ...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
User definition of cell contents
Hello, I have a cell which contains 4 'atom types', e.g. all_atom_type = 'Eu3+' 'Na1+' 'O2-' 'Si4+...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Consider preallocating for speed
Hello, My lengthy program is littered with 'Consider preallocating for speed' suggestions for numerous variables. What doe...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
etwa 10 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Skipping calculations using if
Hello, I have the following code: for j = 1:(length(acalc)-1) for ii = (j+1):length(acalc) dotp(count2,:...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 10 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
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) -...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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 ...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Plotting two 3D points from a textscan output
I have the following text file: Eu3+ 1 10.06037350 -4.673610300 -1.834337367 ...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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 ...
mehr als 10 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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? ...
etwa 11 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
etwa 11 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 11 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
mehr als 11 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
mehr als 11 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
mehr als 11 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
mehr als 11 Jahre vor | 4 Antworten | 0
4
Antworten
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