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Robert Jones


Last seen: 15 days 前 |  自 2016 起处于活动状态

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统计学

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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 months 前 | 1 个回答 | 0

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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 months 前 | 1 个回答 | 0

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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 months 前 | 2 个回答 | 0

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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 months 前 | 1 个回答 | 0

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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...

1 year 前 | 1 个回答 | 0

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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...

1 year 前 | 2 个回答 | 0

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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...

1 year 前 | 0 个回答 | 0

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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...

1 year 前 | 1 个回答 | 0

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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...

2 years 前 | 2 个回答 | 0

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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...

2 years 前 | 1 个回答 | 0

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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: (...

2 years 前 | 2 个回答 | 0

2

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

2 years 前 | 0

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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 ...

2 years 前 | 1 个回答 | 0

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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...

2 years 前 | 1 个回答 | 1

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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...

2 years 前 | 1 个回答 | 0

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提问


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...

2 years 前 | 1 个回答 | 0

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提问


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...

2 years 前 | 1 个回答 | 0

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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...

2 years 前 | 1 个回答 | 0

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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 ...

2 years 前 | 1 个回答 | 0

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display variables with different classes
Hello, I have 3 variables a, b, c that I would like to display, as in disp (a,b,c) a = 0.0029 0 b = 1×4 cell ...

2 years 前 | 1 个回答 | 0

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can i use col numbers in writecell
Hello, I am trying to use sheet names and column numbers when I use write cell. I have this code. Last two lines do not work ...

2 years 前 | 1 个回答 | 0

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Fmincon seems to repeat a number of times the same set of variables
Hello, Fmincon seems to repeat a number of times the same set of variables. Not sure why? What am I missing? Thanks

2 years 前 | 1 个回答 | 0

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trying to use the fmincon function
Hello, I am trying to use the fmincon with a external function definition. I ran the example at https://www.mathworks.com/help...

2 years 前 | 1 个回答 | 0

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已回答
read a file and covert it to two arrays
Thank you

5 years 前 | 0

已回答
read a file and covert it to two arrays
here it is

5 years 前 | 0

提问


read a file and covert it to two arrays
I have an ascii data file with the following content: a=2 b=4 c=9 I need to read it and create two arrays: one containing th...

5 years 前 | 3 个回答 | 0

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How to get a list of the structures used in a matlab code?
I need to get familiar with a large MATLAB code somebody else created. I would like to create a list of all the structures for d...

6 years 前 | 1 个回答 | 0

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Can I trace code structure and document the routine calling
Hello, Just took over somebody's code and I need to map the code, i.e. extract the structure (function calling order, etc.) ...

8 years 前 | 0 个回答 | 0

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