# peter huang

Last seen: 8 days ago Active since 2022

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MATLAB Image Data Extraction Issue
Hello MATLAB users, I have a question regarding MATLAB and would like to understand how to implement image recognition and extr...

8 months ago | 0 answers | 0

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Question

3D Drawing Presentation Issue
Hello MATLAB users, I hope this message finds you well. Currently, I am encountering an issue with the 3D visualization of my d...

8 months ago | 0 answers | 0

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Question

matlab smoothing data problem
Hello matlab users I have a 2-dimensional water depth data. When the value is negative, it is land (make_bathy) I need to line...

9 months ago | 1 answer | 0

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Question

How to process excel data with Chinese dates
how to handle date data with text when using matlab to process excel time data. For example, I want to convert 2013/1/1 上午...

11 months ago | 1 answer | 0

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Question

matlab some polyfit problem
I am testing the accuracy of polyfit to calculate simple trends. I found that when I use the mu parameter, the coefficients of t...

1 year ago | 2 answers | 0

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Fitting method with multiple response variables (y1, y2, y3).
Assuming I have the following data representing water level trends at different stations in this area: X = linspace(0, 10, 100...

1 year ago | 1 answer | 0

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Question

matlab polyfit multiple sets of y data
If I have multiple sets of data (y) under the same x condition, how can I polyfit a fitting line representing these data If...

1 year ago | 1 answer | 0

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Question

matlab plot bar problem
I want to use bar to present my data however I draw it as following pattern I would like to ask how to draw the following si...

1 year ago | 1 answer | 0

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Question

Corresponding data arrangement problem
I have four time series data, each time data length is different and each data has different gaps I want to sort them out accord...

1 year ago | 1 answer | 0

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Question

How to find the corresponding position in a string
How to find the corresponding string in a string set test_str = ['a';'b';'c'] test_str = 'a' 'b' 'c' How can i find out c and th...

2 years ago | 2 answers | 0

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Question

Save loop variable naming problem
I want to save the answers in the loop for future use, I understand that I can use sprintf to batch store the data in the variab...

2 years ago | 1 answer | 0

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Question

how to batch save and load loop variable
Hello, everyone I want to access the result of each calculation in the loop calculation I would like to ask if MATLAB has any i...

2 years ago | 2 answers | 0

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Question

The setting of the time series on the x-axis
I have data that is hourly and up to five years. In the time part, I use datenum to convert it into a number so that I can plot ...

2 years ago | 1 answer | 0