# Zhou Ci

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**Content Feed**

Question

How to open GRIB2 file using ncgeodatset?

Hi everyone, I am trying to open a 'GRIB2' file using ncgeodataset. But I am not able to do it. fname = 'E:\NCEP\fnl_20170603_...

circa 7 ore ago | 0 answers | 0

### 0

answersQuestion

How to remove country boundaries from map?

Hello everyone, I want to remove country/cities boundaries from my figure. Here I am using geoscatter(Lat, Lon, 18, 'filled',...

circa 2 mesi ago | 1 answer | 0

### 1

answerQuestion

how to plot binned data?

Hi everyone, I am trying to check the effect of aerosols concentration on temperature. I need to check the relation between tem...

2 mesi ago | 2 answers | 0

### 2

answersQuestion

Why using interp2 gives NaN

I am trying to collocate two datesets (Satellite data). I have matched dates and time correcctly but my lat lon collocation step...

3 mesi ago | 1 answer | 0

### 1

answerQuestion

Problem in extracting data from netcdf

I am trying to collocate two datasets. My netcdf file is 113x101x24 means I have data for 24 hours. There's another text file th...

3 mesi ago | 1 answer | 0

### 1

answerQuestion

Why values get changed while doing indexing?

Hello everyone, My code is for collocating data of two satellites. Therefore at first I have checked the index where date of Sa...

3 mesi ago | 1 answer | 0

### 1

answerQuestion

Problem in calculating 30th percentile

Hello everyone, I am trying to calculate the 30th percentile. I tried using prctile function but didn't get the result. I've ca...

6 mesi ago | 1 answer | 0

### 1

answerQuestion

Delete values from two column vectors with same position

Hello, I have three column vectors of same sizes. I want to remove values 8, 9, 10 from the one vector (B) such that the subeq...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

how to delete value from one vector such that the subsequent value in other two vectors also gets deleted?

Hello, I have three column vectors of same sizes. I want to remove values 8 9 10 from the one vector (B) such that the subeque...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Index in position 1 is invalid. Array indices must be positive integers or logical values.

Hello, I am trying to find the values of variable Z at the indices of lat_txt and lon_txt. [m,n] = size(M) ; % m= 2030, n ...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Problem in using scatteredInterpolant

Hi, I am doing interpolation here to get values from variable z according to the respective lat lon. My variables from hdf file...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Why indexing returns values from first two columns and not from the whole matrix?

Hi everyone, I've matched a 2 column vector (containing lat lon values respectively) from text file with 2 variables (also con...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Problem in working with ismembertol

Hi everyone, I have a question regarding matching numbers. My text file contains a column vector and I want to match the value...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Finding location of specific element from a MATRIX returns '0×1 empty double column vector'

Hi everyone, I have a matrix and I'm trying to find location of some specific elements but it gives me no answer. My code: [i...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Finding the mean at each interval

Hi everyone, I have data containing 2 columns; Temperature and V. Temp contain repititive temperature values and V contains (2...

8 mesi ago | 2 answers | 0

### 2

answersQuestion

Problem in calculating median and average values at specific intervals.

Hello everyone, My text file contains three parameters Temp (in Kelvin), Ph, and Rad values. These values are extracted from h...

9 mesi ago | 1 answer | 0

### 1

answerQuestion

Binning returns zero values/column vector of 0's

Hi all, I have a table containing values from 3 parameters, T, V and P. My assignment says; -For 1C interval you'll have sever...

9 mesi ago | 1 answer | 0

### 1

answerQuestion

Problem in adding column in text file

Hello everyone, I have an hdf file containing lat, lon and another parameter hp. I also have a text file that contains lat lon...

9 mesi ago | 1 answer | 0

### 1

answerQuestion

Why matrix return all 'false/0' when there are a lot of similar values between matrix and a column vector?

Hi all, I have a text file which I imported in MATLAB and now it's in the form of table. It has latitude longitude values whic...

9 mesi ago | 2 answers | 0

### 2

answersQuestion

Why Using '%f' as formatspec for a text file containing floating numbers gives no output

Hello everyone, I want to read data fom a text file. Text file contains different rows and column. I used below lines of code ...

9 mesi ago | 2 answers | 0

### 2

answersQuestion

How to make line plot of 3 different colors?

Hello everyone, Is there a way to change colors of line plot different at specific intervals? For example, I want line from 18...

10 mesi ago | 1 answer | 0

### 1

answerQuestion

How to calculate a median value of each interval?

Hi everyone, I want to make a line plot and for that purpose I need to calculate the median value of each interval. In my data...

11 mesi ago | 1 answer | 0