Community Profile

Active since 2014

#### Content Feed

View by

Question

Confidence interval for linear regression
Hello, every body. I have a question here. I have a data set (attached excel file) I'm using the following code to estimate 95 a...

nästan 7 år ago | 1 answer | 0

### 1

Question

Data processing for different size matrixes
Hello everyone, I was wondering if someone could guide me for “from where to start?” I have almost 20 data files each one is o...

nästan 7 år ago | 1 answer | 0

### 1

Question

Checking if error in data is normally distributed or not
I have two datasets (x) and (y). How could I know if the error in both data is normally distributed or not? Thank you, Amb

nästan 7 år ago | 2 answers | 0

### 2

Question

Selecting parameters from different models
Hello everybody, I'm totally new to statistics and it is the point where I have to use statistical analysis for a work I'm curre...

nästan 7 år ago | 1 answer | 0

### 1

Question

Data analysis for coefficients and or exponent selections
Hello everybody, I have a kind of simple question if someone could help me with. I have several empirical equations from regres...

nästan 7 år ago | 0 answers | 0

### 0

Question

Image axis on four sides
Hi - I was wondering how could I show axis (x-axis and Y-axis) on both sides of an image.top and bottom left and right side. ...

mer än 7 år ago | 3 answers | 0

### 3

Question

Hi- I was wondering if there is a way to read all variables from workspace ? I want to make a .mat file so if I run my simulatio...

mer än 7 år ago | 3 answers | 0

### 3

Question

Outputting a variable (1*1) struct in txt file
Hello everybody I run the regression analysis and have got a varialble with reg [1*1 struct] I want to output this in a txt f...

mer än 7 år ago | 1 answer | 0

### 1

Question

Reading data after Importing text files into variables with the same name
I have this code from a on line source files = dir( '*.txt' ) ; nFiles = length( files ) ; names = cell( nFiles, 1 ...

mer än 7 år ago | 1 answer | 0

### 1

Question

Importing variables from a txt or xlsx file
Hello everybody- I'm trying to ready some text/xlsx files from a folder and want to keep the variables from original file to out...

mer än 7 år ago | 1 answer | 0

### 1

Question

Importing variables from an xlsx/txt file
Hello everybody- I was wondering if there is a way to import variables from xlsx or txt file in workspace with names ? I know...

mer än 7 år ago | 1 answer | 0

### 1

Selecting an entry of a row in a large matrix
out = a(3:3:end,:) this worked but now I just wanna remove these rows from original matrix

mer än 7 år ago | 0

| accepted

Question

Selecting an entry of a row in a large matrix
Can any one help me with this ? I want to select each 3rd row and first entry of it and want to output all values in a matrix...

mer än 7 år ago | 2 answers | 0

### 2

Question

Gridding data set and highlighting selection
Dear all, I have following data set X Y filename 126.0000 40.0000 TX-130W4 126.5698 40.2369 TX-131W5 127.1396 4...

mer än 7 år ago | 1 answer | 0

### 1

Question

Deleting Duplicates from 2 data sets
Hello dear members, I was wondering, how can I smartly combine 2 data files and then delete values completely which are commo...

mer än 7 år ago | 1 answer | 0

### 1

Need Way to calculate Line-of-Sight through Terrain that is faster than los2
Hi-- The one way to speed up such simulation is to define your output matrices or vector before loop. You can use for instance ...

mer än 7 år ago | 0

Question

Grid search to over lap two data sets
Hello everybody I was trying to use data after merging it in grid data-1 lat lon s 20.3250 50.1234 1.0000 21.3690 51.2365 21...

mer än 7 år ago | 1 answer | 0

### 1

Question

Grid search technique to overlap data matrices with different dimensions
Hello everybody I was trying to use data after merging it in grid data- 1 20.3250 50.1234 1.0000 21.3690 51.2365 21.0...

mer än 7 år ago | 0 answers | 0

### 0

InPolygon data selection from a data file
numbers = xlsread('test.xls'); lats = numbers(:, 1); lons = numbers(:, 2); z = numbers(:, 3); lat1 = 58.4 lon1 ...

mer än 7 år ago | 0

| accepted

Question

InPolygon data selection from a data file
Hi I have following data Lat Lon Reading 23 56 1 24 58 2 26 59 3 22 57 4 25 54 5 29 51 6 22 52 7 ...

mer än 7 år ago | 1 answer | 0

### 1

Question

Matrix Multiplication with large vectors
Hi, If I have following problem how can I formulate it in matlab A= 1 3 2 4 b= xi yi where xi and...

mer än 7 år ago | 2 answers | 0

### 2

Question

How to select data with identical lat lon from two large matrixes ?
I have been working with the satellite data. So I have exported two matrices in matlab which contains nearly 230000 and 370000 r...

mer än 7 år ago | 1 answer | 0

### 1

Question

Data Processing (Count per mag)
Dear all, I'm trying to write a program which will calculate following table Mag Range Count Per mag Cumulative Number ab...

ungefär 8 år ago | 1 answer | 0

### 1

Question

Picking data from a large data file
Hi there I was wondering if there is an algorithm to pick random data from a large matrix (2000*3). Lets say I want output (...

ungefär 8 år ago | 0 answers | 0

### 0

Question

Selecting random points from data file
Hi, is there any algorethim to select random points from a large data file. Lets say I want to select data after every 20 values...

ungefär 8 år ago | 2 answers | 0

### 2

Question

Sampling data from a large data file example attached
Dear all. I was trying to write a small code in which I just want to select part of data. lets say attached file. I just w...

ungefär 8 år ago | 0 answers | 0

### 0

Question

Data Reduction and sub set of data
Hello every body, I'm new with Matlab. I want to write a code whcih can be used on my grid file to reduce it to region of my ...

ungefär 8 år ago | 1 answer | 0

### 1

Question

The problem of removing some data from a large data file
Hi, I'm trying to reduce a data file by suing some logic. Lets say I have x = 1:1:100 want to define a mid point lets say 50 ...

ungefär 8 år ago | 0 answers | 0

### 0

Question

Color map plotting in matab
Hi I'm intrested to plot an EZ map for data (lat,long and variable). I want to display data cluster with different colors. Wo...

ungefär 8 år ago | 0 answers | 0