contents.m

实现地震勘探中

%   mnem4eimp                           - Create a string with the mnemonic of the elastic impedance computed by
%   mnem_substitution                   - Replace certain mnemonics by their standardized forms
%   mplot                               - Plots any number of vectors in the same figure using
%   mplots                              - Plots any number of vectors in the same figure using
%   myconvmtx                           - Function creates convolution matrix of the form
%   mycumsum                            - Modification of Matlab function "cumsum".
%   mydate                              - Create a string with current date and time
%   myerror                             - Generalization of Matlabs error message for compiled code
%   myerrordlg                          - Open message box "errordlg" with name "S4M.name"
%   mygrid                              - Function plots horizontal or vertical grid lines at coordinate(s) d
%   myhilbert                           - Compute Hilbert transform of input data, If "data" is a matrix, "myhilbert"
%   mypatch                             - Function plots horizontal or vertical grid lines at coordinate(s) d
%   mysinc                              - Compute the sinc function, sin(x)/x; handle the case x=0
%   mystairs                            - Plots stair step graph; like "stairs, but with an "upstroke"
%   mystruct                            - Create a "dim"-dimensional structure vector with the fields "fields".
%   mysuptitle                          - Places text as a "super title" on a group of subplots.
%   mytitle                             - Function creates a "standard" title
%   myunique                            - Remove duplicates from "in" in such a way that the last one is retained
%   mywarning                           - 
%   mywindow                            - Compute a window for signal-processing purposes
%   n4g_probes                          - Compute probes for net-to-gross estimation. OBSOLETE
%   n4g_probes1                         - Compute the test signal for net-to-gross estimation; OBSOLETE
%   nan_smooth                          - Function computes average over "dist" samples of matrix "in". "dist" must be greater
%   nearest_intersect                   - Analog to Matlab function "intersect" for numeric data; does not require 
%   ng_probe                            - Compute the test signal for net-to-gross estimation
%   ng_test_signal                      - Compute the test signal for net-to-gross estimation
%   normal_sample_augmentation          - Use samples of a normal distribution to create additional samples that are also
%   open_file                           - Open an file for reading
%   open_segy_file4reading              - Function opens an SEG-Y file, reads the textual header and the binary file 
%   ormsby                              - Function filters input array in the frequency domain with 
%   panel_constraints                   - Create a boolean matrix to represent the logical expression "expression".
%   panelsize                           - Get the number of columns/rows of the panels of pseudo-wells
%   param_check                         - Check if parameter-related fields of a structure are compatible
%   param_copy                          - Function copies all paramaters of a dataset (seismic, log, table, ...)
%   pc_of_wavelet                       - Create a matrix consisting of shifted copies of the wavelet and
%   pd_combine                          - Combine two probability distribution to create one with a new or 
%   percentile_contours                 - Compute sample indices that represent the convex hull of percentiles
%   pfigure                             - Function creates a figure window in portrait mode with label and
%   pfigureh                            - Function creates a figure window in portrait mode (increased hight compared
%   pick_cursor_location_2d             - GUI tool
%   plot_columns                        - Function plots columns of a matrix as curves
%   presets                             - Set default parameters for SeisLab
%   probe_indicator                     - Provide a measure of the overlap between the spectra of the wavelet and the probe
%   progressbar                         - progressbar - shows a progress bar dialog based on the function "waitbar"
%   pw_add_trend                        - Function adds a trend to a specific rock parameter of a given lithology
%   pw_add_trends                       - Function adds lithology-specific trends to rock properties of a pseudowell
%   pw_append                           - Append the pseudo-wells "pwells1" to "pwells". 
%   pw_backus_average_depth             - Convert velocities and the density in a pseudo-well to their Backus averages
%   pw_backus_average_time              - Convert velocities and the density in a pseudo-well to their Backus averages
%   pw_check                            - Function checks if pseudo-well data set is consistent and complies with
%   pw_cplot                            - Plot a pseudo-well panel in color-coded form.
%   pw_create_from_well_data            - Create shale-sand/shale-shale pseudo-pwells with elastic properties obtained 
%   pw_create_from_well_data2           - Create shale-sand/shale-shale pseudo-pwells with elastic properties obtained 
%   pw_data                             - Create pseudo-well dataset (sand encased in shale; N/G=0.2) for test purposes
%   pw_depth2time                       - Convert pseudo-wells in depth to time using a well-specific depth-time curve
%   pw_depth2time1                      - Convert pseudo-well from depth to uniform time; the same depth-time 
%   pw_elastic_impedance                - Function computes elastic impedance for given angles
%   pw_gd                               - Get the description of the panel with mnemonic "mnem" from pseudo-well 
%   pw_ghu                              - Get units of measurement of the header with mnemonic "mnem" from pseudo-well
%   pw_ginfo                            - Get the info about the panel with mnemonic "mnem" from pseudo-well 
%   pw_gpd                              - Get the description of the panel with mnemonic "mnem" from pseudo-well 
%   pw_gpu                              - Get the units of measurement of the panel with mnemonic "mnem" from pseudo-well
%   pw_gu                               - Get the units of measurement of the panel with mnemonic "mnem" from pseudo-well
%   pw_header                           - Function manipulates header(s) of a pseudo-well dataset
%   pw_histoplot_1d                     - Uses a panel of pseudo-wells "pwells" to create a 1-D histogram
%   pw_lithlabel                        - 
%   pw_litho2properties                 - Create/populate fields with property values for the pseudo-well "pwells"; this
%   pw_litho2properties1                - Create/populate fields with property values for the pseudo-wells "pwells"; this
%   pw_litho2properties2                - Create/populate fields with property values for the pseudo-wells "pwells";
%   pw_litho4sand_shale                 - Create pseudo-well lithology panel consisting a stack of shale and sand layers.
%   pw_litho4shale_sandshale_shale      - Create pseudo-well lithology consisting of a stack of pure shale layers 
%   pw_logs2pwells                      - Function converts a structure vector of well logs into a pseudo-well 
%   pw_parameters                       - Creates a structure with default parameters for pseudo-well generation
%   pw_plot_with_header                 - Function plots one or more header values above a pseudo-well panel in 
%   pw_random_sand_shale_sequences      - Create pseudo-well lithology consisting of a stack of pure shale layers 
%   pw_select                           - Function extracts subset of pseudowell data.
%   pw_single_lithology                 - Create pseudo-wells with a one-lithology litho panel
%   pw_stack                            - Stack pseudo-wells. The first pseudowell will be placed above the second, which 
%   pw_time2depth                       - Function computes depth panel for pseudo-wells; pseudo-wells must have a velocity
%   pw_tools                            - Without argument, function lists all functions that create or modify pseudo-wells
%   pw_wplot                            - Plot a pseudo-well panel in wiggle-trace form. By default, the panel mean 
%   range2angle                         - Compute angle such the integral over sin(x)^2 from "angle1" to "angle2"
%   range2angles                        - Compute angles such the integral over sin(x)^2 from "angle1" to "angle2"
%   ranges2angles                       - Compute angle such the integral over sin(x)^2 from "angle1" to "angle2"
%   ray_time1                           - This function computes travel time, ray parameter, and angle of incidence at the bottom
%   ray_time4arbitrary_rays             - This function computes travel time, ray parameter, and angle of incidence at the bottom
%   rayinfo4primaries                   - Compute array rayinfo for primary reflections at all interfaces
%   rayinfo4surface_multiples           - Compute array rayinfo for primary reflections at all interfaces
%   rcoefficients                       - Eigenfactors in half-space
%   read_headers_and_traces_no12        - Read headers and traces
%   read_las2_file                      - Function reads well logs from a disk file in LAS format (Log ASCII Standard),
%   read_las_file                       - Function reads well logs from a disk file in LAS format (Log ASCII Standard) 
%   read_parsifal_pw                    - usage: pw = load_parsifal_pw(filename);
%   read_segy_file                      - Function reads a SEG-Y file and outputs a seismic structure; the function
%   read_segy_file_legacy               - Function reads a SEG-Y file and outputs a seismic structure
%   read_segy_file_traces               - Read traces of an open SEG-Y file with file ID "fid". The file must have
%   read_table_file                     - Read ASCII file with tabular data.
%   read_traces_of_segy_file            - Read traces of the open SEG-Y file with file ID "fid". The file must have
%   reflectivities4angles               - Compute reflectivities for angles
%   remove_consecutive_blanks           - Remove consecutive blanks in the input string (or a cell vector of strings)
%   rm_component                        - From each column of matrix "mat" remove the vector "component" so that all columns
%   rm_dataset_fields                   - Function removes one or more parameter(s) or labels of a dataset structure.
%   rm_label                            - Remove one or more labels from a  dataset (e.g. table, pseudo-well)
%   rm_parameter                        - Remove one or more parameters from a  dataset (seismic, log, etc.)
%   run_length_distribution             - Create a histogram of the number of consecutive ones (1) in vector bool
%   run_presets_if_needed               - Function runs set-up function "presets" in case it has not yet been run.
%   s_2d_spliced_synthetic              - Function creates display of seismic data with spliced-in synthetic
%   s_3d_spliced_synthetic              - Function creates display of seismic data with spliced-in synthetic
%   s_align                             - Function aligns (flattens) user-specified events on seismic traces. The 
%   s_append                            - Function combines two seismic data sets. On output the traces of the 
%   s_apply_probes                      - Compute probe value by forming the inner product of the probe samples and
%   s_attributes                        - Function computes functionals of the seismic traces and stores them in like-named 
%   s_ava_approximation                 - Compute angle-dependent reflectivity for data in structure "pwells";
%   s_blocky_sand_reflections           - Create a seismic dataset which represents a reflection from a low-impedance
%   s_bootstrap_mean                    - Compute bootstrap mean and standard deviation of the traces of the 
%   s_cdpxy2ixline                      - Convert vector of cdp_x and cdp_y coordinates to vectors of inline and 
%   s_check                             - Function checks if seismic data set is consistent and complies with
%   s_compare                           - Function compares two seismic data sets by plotting one on top of the other
%   s_compute_mw_probe                  - Compute a mult-wavelet net-sand probe with a given length for a target interval
%   s_compute_probe                     - Compute a net-sand probe with a given length for a target interval
%   s_compute_probe0                    - Compute a net-sand probe with a given length for a target interval
%   s_compute_probe1                    - Compute a net-sand probe with a given length for a target interval
%   s_compute_probe2                    - Compute a net-sand probe with a given length for a target interval
%   s_compute_probe4                    - Compute a net-sand probe with a given length for a target interval
%   s_convert                           - Function creates a minimal seismic data structure (the history field is optional)
%   s_convert2minimum_phase             - Create the minimum-phase equivalent of the input data set (usually a wavelet).
%   s_convert2zero_phase                - Create the zero-phase equivalent of the input data set (usually a wavelet).
%   s_convolve                          - Function convolves two seismic data sets
%   s_correlate                         - Function computes the crosscorrelation of two seismic data sets
%   s_cplot                             - Plot seismic data in color-coded form.
%   s_cplot_legacy                      - Function plots seismic data in color-coded form.
%   s_create_qfilter                    - Function computes a series of constant-Q absorption filters. These filters have 
%   s_create_reflections                - Function creates reflection coefficient traces for use in testing of 
%   s_create_seismic4different_nets     - Create a seismic dataset for principal-component determination or for 
%   s_create_spike                      - Create a spike (seismic dataset with a spike of default-amplitude 1 at a 
%   s_create_test_data_for_probe        - Create a test dataset to check the performance of a probe. 
%   s_create_wavelet                    - Function computes wavelet and stores it in a seismic data structure; The
%   s_data                              - Generate test dataset consisting of 12 traces of filtered random Gaussian
%   s_data_3d                           - Generate test dataset consisting of 12 traces of filtered random Gaussian
%   s_ds2ds_vector                      - Convert data set into individual one-trace or multi-trace datasets 
%   s_ds_vector2ds                      - Combine the traces of a dataset vector into a single seismic data set.
%   s_edft                              - Compute Extended Discrete Fourier Transform as described in 
%   s_exp_scaling                       - Function applies an exponential scale factor to each trace of "seismic'.