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CygwinQuick Reference of Yeti Functions/Routines
Hash Tables
| h_cleanup | - delete void members of hash table object |
| h_clone | - clone a hash table |
| h_copy | - duplicate hash table object |
| h_delete | - delete members from a hash table |
| h_evaluator | - set/query eval method in hash table object |
| h_first | - get name of first hash table member |
| h_get | - get value of hash table member |
| h_has | - check existence of hash table member |
| h_info | - list contents of hash table |
| h_keys | - get member names of a hash table object |
| h_list | - make a hash table into a list |
| h_new | - create a new hash table object |
| h_next | - get name of next hash table member |
| h_pop | - pop member out of an hash table object |
| h_restore_builtin | - restore builtin functions |
| h_save_symbols | - save builtin functions |
| h_set | - set member of hash table object |
| h_set_copy | - set member of hash table object |
| h_show | - display a hash table as an expanded tree |
| h_stat | - get statistics of hash table object |
Yeti Hierarchical Data (YHD) files
#include "yeti_yhdf.i"
| yhd_check | - check version of YHD file |
| yhd_info | - print some information about an YHD file |
| yhd_restore | - restore a hash table object from an YHD file |
| yhd_save | - save a hash table object into an YHD file |
Regular Expressions
#include "yeti_regex.i"
| regcomp | - compile regular expression |
| regmatch | - match a regular expression against an array of strings |
| regmatch_part | - peek substrings given indices returned by regmatch |
| regsub | - substitute regular expression into an array of strings |
Miscellaneous
| about | - search for documentation |
| current_include | - full path of currently parsed file |
| expand_path | - expand directory names to absolute paths |
| get_path | - the counterpart of set_path |
| heapsort | - sort an array by heap-sort method |
| identof | - get type identifier of an object |
| insure_temporary | - make sure a variable is not referenced |
| is_complex | - check whether an object is an array of complex value(s) |
| is_hash | - check whether an object is a hash table |
| is_integer | - check whether an object is an array of integer value(s) |
| is_symlink | - check whether an object is a symbolic link |
| is_list | - check whether an object is a list |
| is_matrix | - check whether an object is a 2-D array |
| is_numerical | - check whether an object is an array of numerical value(s) |
| is_pointer | - check whether an object is an array of pointer(s) |
| is_real | - check whether an object is an array of floating point value(s) |
| is_scalar | - check whether an object is a scalar array |
| is_sparse_matrix | - check whether an object is a sparse matrix |
| is_string | - check whether an object is an array of string(s) |
| is_vector | - check whether an object is a 1-D array |
| name_of_symlink | - get name of the symbol referenced by a symbolic link |
| pretty_print_string_list | - print out a list in columns |
| quick_select | - find K-th smallest element in an array |
| quick_median | - find median value (faster than median function) |
| quick_interquartile_range | - compute inter-quartile range of values |
| select_file | - interactively select an existing file |
| select_item_in_string_list | - interactively select an item in a list |
| set_alarm | - invoke a callback function after some time |
| setup_package | - load and setup external Yorick package |
| swap | - exchange contents of two variables (n copy needed) |
| symlink_to_name | - create a symbolic link |
| symlink_to_variable | - create a symbolic link |
| unref | - make a symbol temporary |
| value_of_symlink | - get value pointed by a symbolic link |
| yeti_init | - setup Yeti internals |
Memory Hacking
| mem_base | - get base address of an array object |
| mem_copy | - copy array data at a given address |
| mem_info | - print memory information |
| mem_peek | - make a new array from a base address, type and dimension list |
| native_byte_order | - compute native byte order |
Files
| filepath | - get full path of a file |
| chn_open | - open, possibly compressed, file channel. |
| chn_seek | - set i/o position for a channel. |
| chn_read | - read data from a channel. |
| chn_rewind | - go to beginning of a channel file. |
| chn_tell | - get current i/o position into a channel. |
| chn_write | - write data to a channel. |
Binary Encoding of Data
| get_encoding | - get description of binary encoding for various machines |
| install_encoding | - install binary description into a binary stream |
| same_encoding | - compare two encoding |
Math/Numerical
| arc | - lengh of arc in radians |
| cost_l2 | - cost function and gradient for l2 norm |
| cost_l2l0 | - cost function and gradient for l2-l0 norm |
| cost_l2l1 | - cost function and gradient for l2-l1 norm |
| machine_constant | - get machine dependent constant (such as EPSILON) |
| mvmult | - (sparse)matrix-vector multiplication |
| round | - round to nearest integer |
| sinc | - cardinal sine: sinc(x) = sin(pi*x)/(pi*x) |
| smooth3 | - smooth an array by 3-element convolution |
| sparse_expand | - convert a sparse matrix array into a regular array |
| sparse_grow | - augment a sparse array |
| sparse_matrix | - create a new sparse matrix |
| sparse_squeeze | - convert a regular array into a sparse one |
| yeti_convolve | - convolution along a given dimension |
| yeti_wavelet | - "à trou" wavelet decomposition |
Strings
| strlower | - convert array of strings to lower case |
| strtrim | - remove leading/trailing spaces from an array of strings |
| strtrimleft | - remove leading spaces from an array of strings |
| strtrimright | - remove trailing spaces from an array of strings |
| strupper | - convert array of strings to upper case |
Yorick Internals
| memory_info | - display memory used by Yorick symbols |
| symbol_exists | - check existence of a Yorick symbol |
| symbol_info | - get some information about existing Yorick symbols |
| symbol_names | - get names of Yorick symbols |
| nrefsof | - get number of references of an object |
| get_includes | - get list of all included files so far |
Graphics
| window_exists | - check whether a window exists or not |
| window_geometry | - get geometry of a Gist window |
| window_list | - get list of existing windows |
| window_select | - make a window the current one only if it exists |
Morpho-math operations
| morph_black_top_hat | - perform valley detection |
| morph_closing | - perform morpho-math closing operation |
| morph_dilation | - perform morpho-math dilation operation |
| morph_erosion | - perform morpho-math erosion operation |
| morph_opening | - perform morpho-math opening operation |
| morph_white_top_hat | - perform summit detection |
TIFF images
#include "yeti_tiff.i"
| tiff_open | - open TIFF file |
| tiff_debug | - control printing of TIFF warning messages |
| tiff_read_pixels | - read pixel values in a TIFF file |
| tiff_read_image | - read image in a TIFF file |
| tiff_read_directory | - move to next TIFF "directory" |
| tiff_read | - read image/pixels in a TIFF file |
| tiff_check | - check if a file is a readable TIFF file. |
FFTW
#include "yeti_fftw.i"
| fftw_plan | - setup a plan for FFTW |
| fftw | - computes FFT of an array according to a plan |
| cfftw | - computes complex FFT of an array |
| fftw_indgen | - generates FFT indices |
| fftw_dist | - computes length of spatial frequencies |
| fftw_smooth | - smooths an array |
| fftw_convolve | - fast convolution of two arrays |