Robert Jones

Last seen: 16 dagar ago | Active since 2016

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How to plot a 3D contour plot when the contours is a forth vector
Hello, I have a set of data X,Y,Z,A. I would like to plot A in 3D. Not sure how to proceed. It would be nice to have contou...

2 månader ago | 1 answer | 0

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answer

Question

How do I extract a difit from a binary string
Hello, I need to represent a decimal by a binary string and then extract in a loop one the digit at a time. Something like A...

9 månader ago | 1 answer | 0

1

answer

Question

How to create a contour plot from 3 vectors
Hello, I have a table with 3 columns X,Y,Z. how do I create a contour ploy for Z(x,y)? Thank you

10 månader ago | 2 answers | 0

2

answers

Question

find subarray for which for which the value of thefirst two colums is zero
Hello I have an array M(20000000,9). I need to extract the elements for which the first column value and the second column v...

10 månader ago | 1 answer | 0

1

answer

Question

how to read in unequal columns from an excel sheet
Hello I have an excel sheet with four column that are unequal in size How would I read them into 4 matlab arrays? Thank y...

ungefär ett år ago | 1 answer | 0

1

answer

Question

How to supress the output of the taskkill command?
Hello, I have this line in my code ans=system('taskkill /F /IM "CST DESIGN ENVIRONMENT_AMD64.exe"> NUL'); and I get this e...

ungefär ett år ago | 2 answers | 0

2

answers

Question

Is there a way to solve in Matlab an antenna radiation problem for an axisymetric radiator?
Hello, Is there a way to solve in Matlab an antenna radiation problem for an axisymetric radiator? For example a conical hor...

mer än ett år ago | 0 answers | 0

0

answers

Question

How to read a cell from excel that contains a vector
Hello, I need to read a cell from an excel file, say D4. The content of D4 is "[2 4 7]" (the doublequotes are just for specifi...

mer än ett år ago | 1 answer | 0

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answer

Question

How to interpolate a set of data wher the X size is different for the Y size
Hello, I have a set of data X (size=2001,1) and Y (size=3,1). The Z matrix size is (2001,3). X and Y have uniform increments by...

nästan 2 år ago | 2 answers | 0

2

answers

Question

how do I extract subsets from a vector
Hello, I have a vector of the size [70397,2]. It has a title of 2 rows and some text 4 rows between the each data set (2x180...

nästan 2 år ago | 1 answer | 0

1

answer

Question

how to approximate set of point to a given function
Hello, I am have a set of points (about 100 points) that are supposed to represent a rotated ellipse, given by this formula: (...

nästan 2 år ago | 2 answers | 0

2

answers

Answered
how to extract y as a function of x
Great, Thank you. I will

nästan 2 år ago | 0

Question

how to extract y as a function of x
Hello, I am trying to extract the y as a function of x in the expression below, using the symbolic toolbox. Here is the the ...

nästan 2 år ago | 1 answer | 0

1

answer

Question

replacing all occurrences of a string in a file using regexp
Hello, I have a very large file that contains sections like these below VariableProp('GND_R', 'UD', '', '130mm') VariablePr...

ungefär 2 år ago | 1 answer | 1

1

answer

Question

print to screen with fromat
Hello, I am trying to print to screen results that come in the form of lines of numbers. I woul like to have the numbers alig...

ungefär 2 år ago | 1 answer | 0

1

answer

Question

looking for the formulas required to generate an augur surface
Hello, I need to generate a surface object that describes an auger shape simillar to the one in the picture attached (no need...

ungefär 2 år ago | 1 answer | 0

1

answer

Question

How to use the @ function calling when the function is defined as a variable?
Hello, I tried the following Myfunction='runf' [x,y,z]=@Myfunction where runf id the real function It did not work. Is th...

ungefär 2 år ago | 1 answer | 0

1

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Question

why xlswrite/xlsread is not recommended for use
Hello, I am being advised not to use xlswrite/xlsread for reading/writing mixed data to an excel file (xlsx). I found an alt...

ungefär 2 år ago | 1 answer | 0

1

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Question

how to extract some data from this particular structure?
Hello, I have this structure, I am trying to extract some data (preferably avoiding loops): sasa = 1×4 cell array ...