Mat Data To Satat

The word input may be omitted see the discussion that follows.

Mat data to satat. You could overcome this obstacle by creating an l2 distance matrix based on your data and then using clustermat to obtain the desired cluster analysis. The following example shows how to do this. Matwrite is a stata plugin that allows the user to export data to the matlab mat file format from within stata. Matrix input provides a method for inputting matrices.

To enter mata type mata at stata s dot prompt. Technical note mkmat provides a useful addition to stata s matrix commands but it will work only with small datasets. Deletion parallels missing value handling in most stata commands. The word define may be omitted.

Touse x st data mpg weight rep78 touse 4 2 2 creating a view on the data st view x colvector rowvector creates a matrix x that is a view onto the current stata dataset. You can use mata to implement big systems or you can use it interactively. Name of file specified as a character vector or string scalar. Data matrices ado language input matrix by hand description matrix define performs matrix computations.

Zip file with matlab code to export or import datasets to stata. To exit type end at mata s colon prompt. Importing data from stata is restricted to numeric variables but not the reverse. If filename has no extension that is no text after a period load looks for a file named filename mat.

Furthermore the user is able to specify groups of variables to export as matrices. Data import and export functions provide access to data from files other applications web services and external devices. The size of this matrix can exceed stata s maximum matrix size. For an introduction and overview of matrices in stata see u 14 matrix expressions.

Behind the scenes many of stata s commands are implemented using mata. Observations can also be selected based on a stata dummy variable e g. The compiled plugin for matwrite is only currently available. You can read popular file formats such as microsoft excel spreadsheets text images audio and video and scientific data formats.

Read about all of mata s features. Stata limits matrices to no more than matsize matsize which means a maximum of 800 800 for stata ic and 11 000 11 000 for stata se and stata mp. For use in conjunction with insheet outsheet. Filename can include a file extension and a full or partial path.

14 5accessing matrices created by stata commands 14 6creating matrices by accumulating data 14 7matrix operators 14 8matrix functions 14 9subscripting 14 10using matrices in scalar expressions 14 11reference 14 1 overview stata has two matrix programming languages one that might be called stata s older matrix language and another that is. Matwrite allows you to export all or selected variables as column vectors and all or selected matrices as matrices. If you do not specify filename the load function searches for a file named matlab mat.