# Brian

### Thrivent Financial for Lutherans

Followers: 0 Following: 0

**Statistics**

RANK**3,883**

of 292,462

REPUTATION**13**

CONTRIBUTIONS

**47** Questions

**5** Answers

ANSWER ACCEPTANCE **
72.34%
**

VOTES RECEIVED**13**

RANK

of 19,900

REPUTATION**N/A**

AVERAGE RATING**0.00**

CONTRIBUTIONS**0** Files

DOWNLOADS **0**

ALL TIME DOWNLOADS**0**

RANK

of 147,474

CONTRIBUTIONS

**0** Problems

**0** Solutions

SCORE**0**

NUMBER OF BADGES**0**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Feeds**

Question

Matlab Clustering technique with textual data

Hi, I am trying to figure out the best way to cluster numeric information (stock returns) using a series of textual information....

7 years ago | 1 answer | 0

### 1

answerQuestion

How do I efficiently make a large SQL query into Matlab?

I have a SQL table that contains data that I need for analysis which is about 60 million records and 5 fields. What is the best ...

8 years ago | 1 answer | 1

### 1

answerQuestion

Why does Matlab add digits to a code generated vector?

I have a simple command that is creating a vector. Test = (51.7:.1:130)' I then iterate through this vector and use the valu...

8 years ago | 1 answer | 0

### 1

answerQuestion

Table to Matrix from SQL Query

Hi, I have a large SQL query that is importing data into my workspace. I intend to create a data matrix and accompanying label v...

9 years ago | 0 answers | 0

### 0

answersQuestion

Parallel Computing with hyper-threading

I run some of my programs via the parallel computing toolbox using a reasonably powerful machine (20 Cores) to accomplish long r...

9 years ago | 0 answers | 0

### 0

answersQuestion

Spreadsheet LinkEX and datetime fields

Hi, I use the Spreadsheet Link EX to transfer data from Matlab to excel quite frequently. Since the datetime data type was intro...

9 years ago | 0 answers | 0

### 0

answersQuestion

GRPSTATS and datetime columns

Hi, I use grpstats to calculate statistics by different variables often. The new datetime format is very useful and I have conve...

9 years ago | 1 answer | 0

### 1

answerQuestion

grpstats flexibility for additional functions

Hi, I am just wondering if the grpstats function can be used with things other than the standard formulas listed on the help pag...

9 years ago | 1 answer | 0

### 1

answerQuestion

Plot single vector from 3D array

I have a 5x5x150 3d array where I am saving a time series of correlations between variables. At the end of my code I'm attemptin...

9 years ago | 1 answer | 1

### 1

answerQuestion

Slow or Laggy Matlab Workspace

Matlab has become unusually unresponsive when I allow it to sit for some time (a few hours to a few days). The type of slowness ...

9 years ago | 5 answers | 5

### 5

answersQuestion

Join or Merge Data

Hi, I have two large cells that I need to effectively "JOIN" together via two fields (one text and one numeric). Say one cell ha...

10 years ago | 1 answer | 0

### 1

answerQuestion

Help Optimize slow Datestr() function performance

I have imported a large text file with textual dates in the format m/d/yyyy. The end result that I need is a numeric date (for e...

10 years ago | 1 answer | 0

### 1

answerQuestion

Fastest way to import single column?

I am attempting to import just a single column (a textual date field) from a large file with many columns and many rows. When I ...

10 years ago | 2 answers | 0

### 2

answersQuestion

Export Data via fprintf printing something else besides NaN

Hi, I have a simple export loop that is writing the contents of a matrix to a text file for another system to read. The issue is...

10 years ago | 1 answer | 0

### 1

answerQuestion

Fastest Way to write data to a text file - fprintf

I am writing a lot of date to a text file one line at a time (1.7 million rows, 4 columns) that is comprised of different data t...

11 years ago | 2 answers | 1

### 2

answersQuestion

Matlab Slow Import using Import preview

I am using the Import function in Matlab to preview the file before import. The file I am importing is rather large (500 MB or s...

11 years ago | 1 answer | 0

### 1

answerQuestion

Database toolbox query not returning all records

I have a fairly simply SQL query that I am running using the database toolbox connecting to a DB2 datasource. For some reason my...

11 years ago | 0 answers | 0

### 0

answersQuestion

How Can I Speed Up My Code

I've got a job that is running a bunch of iterations on a large dataset and taking more time than I'd like. While I'd like to wr...

12 years ago | 2 answers | 0

### 2

answersQuestion

Use eval statement to create Matrices with variables

I am having trouble with some seemingly basic eval syntax. I have a few variables in loops that I'd like to use to create the na...

12 years ago | 2 answers | 0

### 2

answersQuestion

Create location Index from cell arrays

I have a small piece of code that loops through an array and creates an Index location of that value in another cell array. Acco...

12 years ago | 1 answer | 0

### 1

answerQuestion

Importing Matrix from text or csv files

I have a large matrix that I'd like to import, preferably in one command into a few different Matlab variables. I have been atte...

12 years ago | 1 answer | 0

### 1

answerQuestion

Enable Parfor or Vectorization

I'm looking for a faster way to calculate these loops. I've read some about vectorization on Loren's page but I'm not sure that ...

12 years ago | 0 answers | 0

### 0

answersQuestion

Fast Export Method

I have always used the export command to export a dataset to a comma delimited text file. When the files get a little larger (50...

12 years ago | 1 answer | 0

### 1

answerQuestion

Parfor Step

I am attempting to run a ParFor statement with a step function and Matlab is giving me an error "The range of a parfor statement...

12 years ago | 1 answer | 0

### 1

answerQuestion

Matrix to Table format

I have a very large file that received in a matrix format. Because I'm going to write the data to a SQL database table I need to...

12 years ago | 1 answer | 0

### 1

answerQuestion

Parfor Loops

I have the parallel computing toolbox but I have trouble writing loops in a manner that the toolbox likes. Can someone make a su...

12 years ago | 2 answers | 0

### 2

answersQuestion

Scheduling a Matlab Script

I am attempting to schedule a Matlab job each day using the windows scheduler. I am having trouble getting it to run my m file. ...

12 years ago | 1 answer | 1

### 1

answerQuestion

Matlab Database Toolbox

What is an easy way to create table joints using the querybuilder that is available for the database toolbox? I'm just looking f...

12 years ago | 2 answers | 0

### 2

answersQuestion

Matlab Database Toolbox join

I am wrting a SQL query to pull a list of securities from a table that I am connecting to via ODBC connection. What I'd like to ...

12 years ago | 1 answer | 2

### 1

answerQuestion

Import from .txt or .csv

I am importing some large .csv files where I have textual column headers and row headers. I am using the readtext() function fro...

12 years ago | 1 answer | 0