# SChow

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**Content Feed**

Question

Build a Nonlinear Regression model

Sorry for the very basic question. But I am just trying to figure out the best way to proceed. I have a table (10000*4) with 3 ...

circa un mese ago | 1 answer | 0

### 1

answerQuestion

Match numbers to allocate text

Hi, I am struggling to match numbers to assign a corresponding string. For example, I have an array x=[A 12 B 13 C...

circa 2 mesi ago | 2 answers | 0

### 2

answersQuestion

Circular bar graph in matlab

Hi, I have a table with two columns(headers- Country, Population) and 100 rows. I would like to plot a circular bar graph like i...

2 mesi ago | 1 answer | 0

### 1

answerQuestion

replace values in a matrix by their histogram bin numbers

I have a large matrix 10000x10000 As I draw a histogram by 10 bins, I was wondering if there is a simple way by which I can rep...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Match folder names with file names and rename the folder

I have a path folder names as follows: ~/directory/2000/land/cities/Muscat/ ~/directory/2000/land/cities/Riyadh/ ..... 1000 ...

11 mesi ago | 0 answers | 0

### 0

answersQuestion

Matching matrices based on two columns

I have two matrices A and B, I am trying to match these by 2 columns of B and when they dont match instert Nan as fill value A=...

circa un anno ago | 1 answer | 0

### 1

answerKeep selected rows in a struct file

%%jn is the array, (not converted to cell array that I was originally %%converting it to , and I should have used square brac...

oltre un anno ago | 0

| accepted

Question

Keep selected rows in a struct file

Hello, I have a 600x1 struct file with 5 fields. One of the field is 'labels', containing random numbers from 1 to 1000. and a ...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

match elements of a matrix to an array

Hello, I have one matrix (A1) of size 4000x8000 and the second matrix (g1) of size 100000x2. I am trying to match each number ...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

for loop taking too long to operate

I have a matrices (b1 and popx) with size 25000x50000, code is a vector which contains unique values in b1 (of length 300). For ...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

perform matrix operation without for loop

I have a matrix (exp_data) of size 25000*45000. I need to perform the following operations as in the code, however with the for ...

circa 2 anni ago | 2 answers | 0

### 2

answersQuestion

Performing matrix operation without loop

Hi, I have two matrices (A and B), each of size, 4000x8000x3 (i,j,k). The 'k th' dimension of both matrix contains median and...

circa 2 anni ago | 2 answers | 1

### 2

answersError in geoshow: (displaytype,'Surface')

pcolorm is an immediate alternative to using geoshow.

circa 2 anni ago | 0

Question

Finding and replacing numbers with NaN

Hello, I have a matrix where the numbers only made up of 9 are fill values and should be replaced by NaN.; For eg: There are n...

circa 2 anni ago | 2 answers | 0

### 2

answersQuestion

Error in geoshow: (displaytype,'Surface')

Hi I am getting a weird error and the geoshow function is not working with 'Displaytype', 'Surface' and set(gca,'colorscale',...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

Find string corresponding to another string within a text file

Hi, I have a text file, I was trying to read the latitide, longitude and station name corresponding to the associated strings...

circa 2 anni ago | 1 answer | 0

### 1

answerhow to read NASA AMES FORMAT data

Okay, Matlab cannot read .nas files, so one needs rename the .nas files to .txt (or similarly suitable extensions), and then r...

circa 2 anni ago | 0

| accepted

Question

how to read NASA AMES FORMAT data

I havea data with '.nas' extension (NASA AMES FORMAT). Is there a way to read it. I tried readtable and dlmread. None would work...

circa 2 anni ago | 1 answer | 1

### 1

answerQuestion

Extrapolate using half the slope than in original data

I have a set of 21 X,Y poinst which I intend to extrapolate by using slope (rate of change)= 1/2 than that is observed in the or...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

Interpolating point LAT,LON data to make gridded data

I have lat,lon,z point values (not gridded), I want to interpolate z at 1.875x1.875 degree resolution. The below code doesnot p...

oltre 2 anni ago | 0 answers | 0

### 0

answersQuestion

Interpolating scattered data within a shapefile/worldmap

Hi I have x,y,zi scattered data, where x is lon, y is lat and zi is the data, I want to interpolate and extrapolate the data wi...

oltre 2 anni ago | 1 answer | 0

### 1

answerHow to make the graphs more smooth in matlab

Hi, you may use the print function to save your figure at a desired high resolution print(gcf,'fname.png','-dpng','-r800');%%%f...

oltre 2 anni ago | 0

Question

Match strings from 2 tables

Hi, I have 2 tables example: TA= 'Name' 'Code' 'AFG' 120 'CAN' 210 'BER' 121 'FIJ' 910 ...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

Finding matching strings from a table and making a new table

I have a huge table of size 18792010x57 (57) are the number of columns. As an example say the table (T) that looks like: 'A' ...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

Find corresponding values for unique values in a matrix

I have two matrices A and B. I want to add up elements in matrix B for every unique element in matrix A and return C A =[1 47 2...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

Matching elements in a matrix with elements in another matrix

I have a matrix, A=[1 3 4 3 1 5 NaN 3 6] and another index matrix B=[1 333 2 356 3 112 4 789 5 7...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

match vector with first column of matrix

I have a matrix 'Mat' and a vector 'v', I want to match the vector 'v' with the first row of 'Mat' such that I get an output 'r...

oltre 2 anni ago | 2 answers | 0

### 2

answersmaking coarse matrix from fine resolution matrix

scaling = 5; %%% I scale Z1 by factor of 5 so that sepblockfun works, %%%%% sepblockfun is developed by MattJ and is available...

oltre 2 anni ago | 1

Question

making coarse matrix from fine resolution matrix

Hi, I am trying to make a coarse resolution matrix of 3600x1800 from a 8640x4320 matrix by summing up the elements of the matrix...

oltre 2 anni ago | 3 answers | 0