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Rahul


Last seen: 1 day ago |  Active since 2023

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Issue with integration using trapz
Hello, I'm trying to implement integration using trapz. But the resultant quantity after integration is negligibly small and do...

1 day ago | 0 answers | 0

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answers

Question


Error while extracting MIN and MAX values from a given data
Hi, While trying to extract the min and max values from a given data, the code is unable to extract correctly for data.variable...

15 days ago | 1 answer | 0

1

answer

Question


Error in determining MIN and MAX values from a given vector
Hi, From the attached data my intention is to determine the min and max values for pressure. Thus in data.variable.pressure th...

15 days ago | 0 answers | 0

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answers

Question


Error during contour plot
Hi, While trying to generate a contour plot, I'm getting an error which is thown as "The size of X must match the size of Z o...

19 days ago | 1 answer | 0

1

answer

Question


Why does it give error in spectrogram plotting?
Hello, I'm getting an error while generating spectrogram. It shows "Dot indexing is not supported for variables of this type....

21 days ago | 1 answer | 0

1

answer

Question


How to fix the error in pdepe?
Hi, In the attached code, it throws an error which says Error using ^ Incorrect dimensions for raising a matrix to a power....

3 months ago | 1 answer | 0

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answer

Question


How to fix the error in integration?
Hi, While performing an integration using trapz it throws an error "Array indices must be positive integers or logical values."...

3 months ago | 1 answer | 0

1

answer

Question


Why is the error in the attached code?
Hi, I'm getting an error in the attached code which I'm unable to decode. Hence need your advice in the same. Attached herew...

3 months ago | 1 answer | 0

1

answer

Question


How to introduce 2nd order derivative term in pdepe?
Hi, Refer to the subject cited above, I'm not sure if it is possible or not to introduce second order derivative term in pdepe?...

4 months ago | 1 answer | 0

1

answer

Answered
Issue with solving pdepe
Hi, plz find attached the set of equations Also i found one mistake in the code that I corrected in the code below. However, ...

4 months ago | 0

Question


Issue with solving pdepe
Hello, Wishing you all a Merry Christmas I'm trying to solve a pdepe consisting of 6 equations which consists pressure, densit...

4 months ago | 1 answer | 0

1

answer

Question


Why am I receiving the error?
Hello, I'm receiving an error in my code when run. It shows Error using pdepe Unexpected output of PDEFUN. For this problem P...

5 months ago | 1 answer | 0

1

answer

Question


How to retrieve data from a Excel sheet saved at a particular location in pc?
Hello, I want to retrieve data from an excel sheet stored at a particular location in the pc, the path of that particular file ...

5 months ago | 1 answer | 0

1

answer

Question


How to code a ramp function?
Hi, I tried to code a ramp function as attached herewith. But getting an error "Operands to the logical AND (&&) and OR (||)...

6 months ago | 1 answer | 0

1

answer

Answered
How to plot frequency spectrum in log-log scale?
Hi Dyuman Joshi, Regarding the the above code for generating frequency spectrum, I'd like to know if it is possible to generat...

6 months ago | 0

Question


How to plot power law frequency spectrum?
Hello friends, I want to plot power law frequency spectrum for the turbulence intensity data as attached. So far I understand...

6 months ago | 1 answer | 0

1

answer

Question


Why do I have an error in pdepe solving?
Hi all, I'm having an error while solving a pdepe. It gives me the error "Index exceeds the number of array elements. Index...

6 months ago | 1 answer | 1

1

answer

Question


How to plot frequency spectrum in log-log scale?
Hello, I'm trying to plot a frequency spectrum for a given set of data with log scales in both axes which should scale as 10^0,...

7 months ago | 2 answers | 0

2

answers

Question


How to zoom in to a particular point of an image?
Hi, I'm trying to zoom in to a particular point of an image and not the full image. In the above figure, I want to zoom i...

8 months ago | 2 answers | 0

2

answers

Question


How to code a 1D-random walk with wait time?
Hi, I'm trying to write a code for 1D-random walk with waiting time between jump of particle. But, the code gives error. If...

9 months ago | 1 answer | 0

1

answer

Question


How to determine phase shift between two waveforms?
Hi, I want to determine the phase shift between two waveforms. One of the waveform is considered as pivot/fixed and the second ...

10 months ago | 1 answer | 0

1

answer

Question


How to determine phase shift and slope for a varying waveform?
Hi, I have 12 nos. of probes which detects and picks signals (namely obp1n to obp12n). After determining the spectogram and fil...

10 months ago | 1 answer | 0

1

answer

Question


How to determine phase shift?
Hi, In the plot as attached, is there any way that matlab provides to determine the phase shift. The problem is that one plot...

10 months ago | 1 answer | 0

1

answer

Question


How to plot angle (in radians) versus phase shift?
Hi, I want a profile with phase angle plotted against angle in radians. Presently I have a code with phase angle plotted again...

10 months ago | 1 answer | 0

1

answer

Question


Why does polyfit gives two outputs?
Hi, I want to plot a line passing through a set of points, which is as in the code below. To determine the slope I used polyf...

10 months ago | 2 answers | 0

2

answers

Question


How to extract data from txt file and plot spectogram?
Hello, I have a large sample of data (100000 samples) in txt file consisting of time and amplitude of the signal. I want to p...

11 months ago | 2 answers | 0

2

answers

Question


How can I restrict a parameter (turbulence intensity) to only positive values?
Hello, I have a code in which the parameter u3 which denotes the turbulence intensity oscillates from positive to negative for ...

12 months ago | 2 answers | 0

2

answers