# peter huang

Last seen: 11 months ago Active since 2021

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Matlab map show function - adjusting x and y-axis issue.
I used the "map show" function in Matlab to plot satellite aerial images. However, when I tried to adjust their x and y coordina...

1 year ago | 1 answer | 0

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Matlab bar chart plotting issue
I have two sets of data and I am using the Matlab "bar" function to create a bar chart. However, I would like to enhance the plo...

1 year ago | 2 answers | 0

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To use multiple xtick methods in MATLAB plot
I have a set of data where the y-axis is the same, but there are three distinct sets of data on the x-axis. I want to use multip...

1 year ago | 2 answers | 0

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Adjusting the height of mathematical symbols in Matlab
In MATLAB, I would like to use mathematical symbols in the legend and adjust the vertical alignment between the symbols. How c...

1 year ago | 1 answer | 0

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x is a sequence from 2005 to 2023 with a step of every two years. y represents my calculated results, and I'm using sine values ...

1 year ago | 3 answers | 0

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How can I merge the matrices that produce different dimensions in the loop
Suppose my loop will generate matrices of different dimensions such as the first five matrices first lap 2...

1 year ago | 3 answers | 0

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How does matlab get the combinations that meet certain conditions in the matrix
Suppose I have a matrix A = [1 2 3 4 5 6 7 8 9 10]] I want to find out the combination of the following conditions respectively ...

1 year ago | 3 answers | 0

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How to write data horizontally in matlab using xlswrite to express meaning like excel
How to write data horizontally in matlab using xlswrite to express meaning like excel aaa is str bbb is num ccc is str I try...

1 year ago | 1 answer | 0

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How to automatically run all matlab files in a folder
If there are many matlab edits in my folder, is there any command in matlab that can automatically read the edit in the folder...

2 years ago | 1 answer | 0

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how to create color bar arrow
How to make the data appear like the picture below, change the color with the increase

2 years ago | 1 answer | 1

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using subplot in bar , how to adjust bar width
how to adjust unified bar width in subplot ex. code clear all ; clc ;clf x1 = [1 2 3]; y1 = [1 2 3 ]; x2 = [1 2 3 4 5]...

2 years ago | 1 answer | 0

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How to draw negative values ​​on bar when it contains negative values
if my data have negative values I want to draw the bar values ​​uniformly on the top of the bar chart, like the numbers above ...

2 years ago | 1 answer | 0

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how do i use datetime adjust xtick
when i useing datetime plot timeseries i want adjust year by year xtick ex. 2007 2008 2009 2010 2011 ... 2022 Is there any w...

2 years ago | 2 answers | 0

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How Timelines Unify in subplot
I want to unify the time of the xtick in the subplot, but the time length of the data is different I adjusted through the axis b...

2 years ago | 1 answer | 0

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matlab plot rendering problem
Suppose my data has very low discreteness, as given in the attached file y2_max is x st20_1 and trend_parabolic are y I wo...

2 years ago | 1 answer | 0

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how to query string exactly in matlab
I have a composition table. If I enter matlab, I will get a cell of n*1 e.g. file attached If I finish reading matlab I want ...

2 years ago | 1 answer | 0

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when datenum is the x-axis How to change the x-axis to discernable time
I have a five-year water level data. On the x-axis, I use datenum to convert the time into numbers so that I can draw the graph,...

2 years ago | 1 answer | 0

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how to use rose diagram appear wind direction and wind speed
i have wind data (direction and speed) but i can not know matlab polarhistogram code mean How can I render a rose diagram with...

2 years ago | 1 answer | 0

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How to judge the duplicate value of the previous loop and the current loop in the loop
a = [201101 201107 201201 201207 201301 201307 201401 201407 201501 201507] for k = 1:2 if k =mod(k,2)==1 index =(1:5) y...

2 years ago | 1 answer | 0

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matlab set loop conditons question
When multiple conditions are set in the loop, when encountering an item that satisfies the repeated conditions, how to determine...

2 years ago | 1 answer | 0

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fft question about data length and spline data
I want use fft analizy my water level data. because my data have lost ,so i use spline fill up my data. but when i use data le...

2 years ago | 1 answer | 0

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how to distinguish fft frequency is real existence or noise
i useing fft analyze tide water level i want find exist tide component but fft present a lot of noise i want distinguish fr...

2 years ago | 1 answer | 0

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datenum using lunar calendar question
i want using lunar calendar in matlab and want plot my tide data and using lunar calendar be my timeseries but lunar calenda...

2 years ago | 1 answer | 0

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How to add hours to the time data of one day
i have raw data timeseries (excel column A) i want use marlab add hours to the time data (like column B) how to addtion hours...

2 years ago | 2 answers | 0

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matlab have lunar calendar code?
i have vids time series i want convert timeseries to lunar calendar (traditional Chinese calendar) matlab have code convert ?...

2 years ago | 1 answer | 0

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How to remove noise from the signal analyzed by fft
i analyzed tide signal want find to the actual frequency but fft product many noise i want remove it matlab have which co...

2 years ago | 1 answer | 0

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how to adjust x-axis in plot
i want x-axis to be 30 is starting point 30 2 4 6 8 10 .... 30 2 4 6 8 10 .... 30 2 ..... like a once a month loop

2 years ago | 2 answers | 0

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I have a problem with drawing on the timeline
clear all ; clc ; clf ; set(gcf,'color','w') %% load data filehtm = dir('moving_windown_test.xlsx') ; for...

2 years ago | 0 answers | 0

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How to remove leap year dates from time series in data
How to remove leap year(2/29) dates from time series in data (My time series is hour by hour)

2 years ago | 1 answer | 0