MATLAB Functions | Help Desk |
lookfor
Keyword search through all help entries
lookfor topic
lookfor topic
-all
lookfor topic
searches for the string topic in the first comment line (the H1 line) of the help text in all M-files found on MATLAB's search path. For all files in which a match occurs, lookfor
displays the H1 line.
lookfor topic
-all
searches the entire first comment block of an M-file looking for topic
.
For example
lookfor inverse
finds at least a dozen matches, including H1 lines containing "inverse hyperbolic cosine," "two-dimensional inverse FFT," and "pseudoinverse." Contrast this with
which inverse
or
what inverseThese commands run more quickly, but probably fail to find anything because MATLAB does not ordinarily have a function
inverse
.
In summary, what
lists the functions in a given directory, which
finds the directory containing a given function or file, and lookfor
finds all functions in all directories that might have something to do with a given keyword.
dir
Directory listing
help
Online help for MATLAB functions and M-files
what
Directory listing of M-files, MAT-files, and MEX-files
which
Locate functions and files
who
List directory of variables in memory