Updated at: March 11, 2017
>> error: 'LINPROG' undefined near line 38 column 12 error: called from ~/Documents/写论文的计算数据/DEA-BSC_1set.m at line38 column 11 >> pkg list no packages installed. >> pkg load optim error: package optim is not installed error: called from load_packages at line 53 column 11 pkg at line 422 column 7 >> pwd ans = /home/ghluo >> pkg install ~/Downloads/optim-1.5.2.tar.gz warning: creating installation directory /home/ghluo/octave warning: called from install at line 30 column 5 pkg at line 405 column 9 error: the following dependencies were unsatisfied: optim needs struct >= 1.0.12
-auto The package manager will automatically load the installed package when starting Octave. This overrides any setting within the package.
>> pkg install ~/Downloads/struct-1.0.14.tar.gz -auto For information about changes from previous versions of the struct package, run 'news struct'. >> pkg install ~/Downloads/optim-1.5.2.tar.gz -auto For information about changes from previous versions of the optim package, run 'news optim'.
Return a row vector with n elements logarithmically spaced from 10^a to 10^b. If n is unspecified it defaults to 50. If b is equal to pi, the points are between 10^a and pi, not 10^a and 10^pi, in order to be compatible with the corresponding MATLAB function. Also for compatibility with MATLAB, return the second argument b if fewer than two values are requested. e.g. logspace(-2, 2, 5) ans = 1.0000e-02 1.0000e-01 1.0000e+00 1.0000e+01 1.0000e+02
Return a row vector with n linearly spaced elements between base and limit. If the number of elements is greater than one, then the endpoints base and limit are always included in the range. If base is greater than limit, the elements are stored in decreasing order. If the number of points is not specified, a value of 100 is used. The linspace function returns a row vector when both base and limit are scalars. If one, or both, inputs are vectors, then linspace transforms them to column vectors and returns a matrix where each row is an independent sequence between base(row_n), limit(row_n). For compatibility with MATLAB, return the second argument (limit) if fewer than two values are requested. e.g. linspace(0,5,6) ans = 0 1 2 3 4 5
Someone said: I can confirm that on Ubuntu Xenial (16.04) upgrading to the latest stable Mesa as per http://www.omgubuntu.co.uk/2016/12/stable-mesa-drivers-ubuntu-ppa (ppa:paulo-miguel-dias/pkppa) the crash is resolved.
After I add this ppa(mesa drivers), and upgrade ubuntu-desktop(
sudo apt dist-upgrade), Octave works!!. However, there are 3 new problems:
How to resolve this problem? Loged in ubuntu-desktop-使用日志
compatible with Matlab
|char||Convert to character array|
|num2str||Convert numbers to character array|
|str2double||Convert string to double precision value|
|str2num||Convert character array to numeric array|
|native2unicode||Convert numeric bytes to Unicode character representation|
s = strcat(s1,...,sN)
s = strcat(s1,...,sN) horizontally concatenates s1,…,sN. Each input argument can be a character array, a cell array of character vectors, or a string array.
For character array inputs, strcat removes trailing ASCII white-space characters: space, tab, vertical tab, newline, carriage return, and form feed. For cell and string array inputs, strcat does not remove trailing white space.
str = strjoin(C) str = strjoin(C,delimiter)
str = strjoin(C)constructs a single piece of text, str, by linking each element in the array, C, with a single space. C can be a cell array of character vectors or a string array.
str = strjoin(C,delimiter)constructs str by linking each element of C with the elements in delimiter.
>> A = ; >> A(1,1) = 1; >> A(2,1) = 1; >> A(3,1) = 1; >> A >> A = 1 1 1
Create an inline function from the character string STR
>> xtimesexp = inline('x*e') xtimesexp = f(x) = x*e >> xtimesexp(5) ans = 13.5914091422952