Question

Convert cell array to array of strings
Hi, I have a cell array a of 10000x1 cell. Each cell contains a string. I would like to strsplit the string in each cell but...

plus de 7 ans il y a | 1 réponse | 0

1

réponse

Question

datainsert is very slow
Hi, I have a table of 750000 rows by 7 columns. I use datainsert to insert into database. But it is very slow. If I sert 1 ...

plus de 7 ans il y a | 1 réponse | 0

1

réponse

Question

database toolbox has no function for open a connection, why?
Hi, I noticed that database toolbox has no function for open a connection. So after closing a connection, how to reopen it? ...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question

Error when inserting data into database without toolbox
Hi, I don't have database toolbox. But I created a correct connection. I try to use insert function to insert one row into a...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question

How to uninstall an older version of Matlab
Hi, I have both R2014b and R2015b installed on my machine. I would like to uninstall R2014b without harming R2015b. They are ...

presque 8 ans il y a | 2 réponses | 2

2

réponses

Question

How can I check if I have a databse toolbox
Hi, I don't know if I have database toolbox. How to check if I have it. Thanks.

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question

Problem converting a cell array of integers to datetime
Hi, I have an array if integers (100x1 cell), like 736696, 736697, .... I try to use b = datetime(a, 'ConvertFrom', 'datenum...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question

keep getting error Undefined function or variable 'stack', why?
Hi, I am using Matlab 2015b with statistics toolbox. But I keep getting Undefined function or variable 'stack', why? Tha...

presque 8 ans il y a | 3 réponses | 0

3

réponses

Question

How to turn an array of doubles to cell array
How to turn an array of doubles to cell array? I need to use an array of doubles (they are actually integers) and assign this ...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question

Undefined function 'contains' for input arguments of type 'char'
Hi, I am trying to use contains to check if string A has string B in it. Say, A = 'XYZXYZ', B = 'XY', I am using: tf = con...

presque 8 ans il y a | 2 réponses | 1

2

réponses

Question

How to display multiple histograms in one window?
Hi, I have a matrix of 8X100 doubles (8 rows and 100 columns) named 'cMat8x100'. I would like to display the data as 8 histog...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question

How to choose some rows of a table by order?
Hi, I have a table with many rows but only 3 columns: dates, items, costs. For each date, there are many items and costs. I ...

presque 8 ans il y a | 2 réponses | 0

2

réponses

Question

How to know if a matrix has nan?
Hi, I have a huge matrix or table with doubles. But there might be nan in it. How do I know if there are any nan in it? I kn...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question

Precision lost while reading from Excel file to a Matlab table
Hi, I am using readtable to read a large high precision matrix from Excel. How to make sure I read the entire decimal points...

environ 8 ans il y a | 1 réponse | 0

1

réponse

Question

How to extract a subtable by rownames?
Hi, I have a table of 10 columns and one column represent last names. I would like to extract all the rows that belong to o...

environ 8 ans il y a | 1 réponse | 0

1

réponse

Question

turn a table column into doubles
Hi, I have a Table that has a column that was read from an excel sheet. The column should be numbers but is currently show...

environ 8 ans il y a | 4 réponses | 1

4

réponses

Question

Insert data from excel to a SQl database table
Hi, I have many rows of data in an excel and I can read the excel data into a Matlab table. The table mirror a table in a SQ...

environ 8 ans il y a | 1 réponse | 0

1

réponse

Question

How to paste matlab table into Excel with headers
Hi, I have a table in Matlab with many rows. I can copy from Matlab and paste into Excel. But the headers are gone. How to c...

environ 8 ans il y a | 2 réponses | 0

2

réponses

Question

Get row names of a table...
How to get the row names from a table which has row names and column names.

environ 8 ans il y a | 1 réponse | 1

1

réponse

Question

How to remove a pattern in a table column
Hi, I have a table with a column. The column looks like this: 'AB_Off' 'ABC' 'CDE_Off' I would like to remove the '_Off...

environ 8 ans il y a | 3 réponses | 0

3

réponses

Question

confused by machine designated license meaning
I have a matlab license on a network computer that multiple people can log on. I know that only one person can run the matlab a...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question

How to make Matlab close automatically
Hi, I have a .bat file that should start matlab and run an application, then close matlab. It has one line: matlab -nodes...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question

Matlab nativemvm.dll The paging file is too small for this operation to complete
I am trying to launch Matlab R2015a installed on a wintel server and got the following error: C:\Pprogram Files\Matlab\R2015...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question

Convert a table column of mixed data type to one data type
Hi, I have a table column that has both integers and strings. The integers are for dates. I would like to convert the inte...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question

individual license installing on a machine with no email
Hi, My company has a spare matlab license. We would like to install matlab on a computer and use that license. But the licens...

plus de 8 ans il y a | 1 réponse | 0

0

réponse

Question

Create a value object which is a subclass of a value super class
Hi, I have value class A and its two subclasses BA and CA (all are value classes). I create an instance BA and CA with ba = ...

plus de 8 ans il y a | 1 réponse | 0

0

réponse

Question

Table column date format vs. String
Hi, I have a table A with column 'dates' and the format is string like '04/01/2016'. I have another table B with column 'dat...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question

How to split a column in a table into two columns by a space
I have a table of 4 columns. One column is datetime, '2016-02-01 20:48:58.0000000' I would like to split the date and time into...

plus de 8 ans il y a | 3 réponses | 0

3

réponses

Question

Getting error "Too many input arguments"
Hi, I keep getting this error, even when I reduced myfunc to take in just one input as myfunc(a) and doing nothing in the funct...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question

How to remove rows in a table
Hi, I have a table in Matlab with many rows. There is one column called datetime. Same records can appear in the table multi...

plus de 8 ans il y a | 1 réponse | 0

1

réponse