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annotate scripts/io/dlmwrite.m @ 19830:884e0c55d92c

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Fix complex compare operation for issorted (bug #44071). * Array-C.cc (nan_ascending_compare, nan_descending_compare): Fix typo where comparison was made between x and x rather than between x and y.
author Rik <rik@octave.org>
date Mon, 26 Jan 2015 15:32:49 -0800
parents 6ca096827123
children 4197fc428c7d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ## Copyright (C) 2002-2013 Paul Kienzle
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} dlmwrite (@var{file}, @var{M})
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21 ## @deftypefnx {Function File} {} dlmwrite (@var{file}, @var{M}, @var{delim}, @var{r}, @var{c})
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22 ## @deftypefnx {Function File} {} dlmwrite (@var{file}, @var{M}, @var{key}, @var{val} @dots{})
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23 ## @deftypefnx {Function File} {} dlmwrite (@var{file}, @var{M}, "-append", @dots{})
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24 ## @deftypefnx {Function File} {} dlmwrite (@var{fid}, @dots{})
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25 ## Write the matrix @var{M} to the named file using delimiters.
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26 ##
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27 ## @var{file} should be a file name or writable file ID given by @code{fopen}.
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28 ##
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29 ## The parameter @var{delim} specifies the delimiter to use to separate
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30 ## values on a row.
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31 ##
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32 ## The value of @var{r} specifies the number of delimiter-only lines to
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33 ## add to the start of the file.
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34 ##
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35 ## The value of @var{c} specifies the number of delimiters to prepend to
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36 ## each line of data.
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37 ##
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38 ## If the argument @qcode{"-append"} is given, append to the end of
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39 ## @var{file}.
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40 ##
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41 ## In addition, the following keyword value pairs may appear at the end
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42 ## of the argument list:
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43 ##
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44 ## @table @asis
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45 ## @item @qcode{"append"}
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46 ## Either @qcode{"on"} or @qcode{"off"}. See @qcode{"-append"} above.
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47 ##
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48 ## @item @qcode{"delimiter"}
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49 ## See @var{delim} above.
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50 ##
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51 ## @item @qcode{"newline"}
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52 ## The character(s) to use to separate each row. Three special cases
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53 ## exist for this option. @qcode{"unix"} is changed into @qcode{"\n"},
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54 ## @qcode{"pc"} is changed into @qcode{"\r\n"}, and @qcode{"mac"} is changed
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55 ## into @qcode{"\r"}. Other values for this option are kept as is.
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56 ##
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57 ## @item @qcode{"roffset"}
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58 ## See @var{r} above.
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59 ##
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60 ## @item @qcode{"coffset"}
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61 ## See @var{c} above.
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62 ##
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63 ## @item @qcode{"precision"}
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64 ## The precision to use when writing the file. It can either be a
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65 ## format string (as used by fprintf) or a number of significant digits.
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66 ## @end table
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67 ##
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68 ## @example
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69 ## dlmwrite ("file.csv", reshape (1:16, 4, 4));
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70 ## @end example
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71 ##
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72 ## @example
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73 ## dlmwrite ("file.tex", a, "delimiter", "&", "newline", "\\n")
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74 ## @end example
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75 ##
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76 ## @seealso{dlmread, csvread, csvwrite}
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77 ## @end deftypefn
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78
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79 ## Author: Paul Kienzle <pkienzle@users.sf.net>
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80 ##
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81 ## This program was originally granted to the public domain
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82 ##
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83 ## 2002-03-08 Paul Kienzle <pkienzle@users.sf.net>
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84 ## * Initial revision
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85 ## 2005-11-27 Bill Denney <bill@givebillmoney.com>
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86 ## * Significant modifications of the input arguments for additional
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87 ## functionality.
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88
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89 function dlmwrite (file, M, varargin)
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90
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91 if (nargin < 2)
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92 print_usage ();
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93 endif
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94
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95 ## set defaults
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96 delim = ",";
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97 r = c = 0;
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98 newline = "\n";
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99 if (ischar (M))
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100 precision = "%c";
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101 else
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102 precision = "%.16g";
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103 endif
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104 opentype = "wt";
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105
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106 ## process the input arguments
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107 i = 0;
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108 while (i < length (varargin))
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109 i++;
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110 if (strcmpi (varargin{i}, "delimiter"))
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111 delim = varargin{++i};
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112 elseif (strcmpi (varargin{i}, "newline"))
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113 newline = varargin{++i};
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114 if (strcmpi (newline, "unix"))
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115 newline = "\n";
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116 elseif (strcmpi (newline, "pc"))
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117 newline = "\r\n";
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118 elseif (strcmpi (newline, "mac"))
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119 newline = "\r";
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120 endif
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121 elseif (strcmpi (varargin{i}, "roffset"))
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122 r = varargin{++i};
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123 elseif (strcmpi (varargin{i}, "coffset"))
13765
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124 c = varargin{++i};
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125 elseif (strcmpi (varargin{i}, "precision"))
13765
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126 precision = varargin{++i};
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127 if (! strcmpi (class (precision), "char"))
10626
044d9df4d79a Correctly set output precision (#29870) in dlmwrite
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128 precision = sprintf ("%%.%gg", precision);
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129 endif
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130 elseif (strcmpi (varargin{i}, "-append"))
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131 opentype = "at";
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132 elseif (strcmpi (varargin{i}, "append"))
13765
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133 i++;
7580
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134 if (strcmpi (varargin{i}, "on"))
10549
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135 opentype = "at";
7580
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136 elseif (strcmpi (varargin{i}, "off"))
10549
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parents: 9630
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137 opentype = "wt";
7580
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138 else
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139 error ('dlmwrite: append must be "on" or "off"');
7580
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140 endif
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parents:
diff changeset
141 else
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parents:
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142 if (i == 1)
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Rik <code@nomad.inbox5.com>
parents: 9630
diff changeset
143 delim = varargin{i};
7580
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144 elseif (i == 2)
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parents: 9630
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145 r = varargin{i};
7580
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146 elseif (i == 3)
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147 c = varargin{i};
7580
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148 else
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parents: 14363
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149 print_usage ();
7580
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150 endif
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parents:
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151 endif
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parents:
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152 endwhile
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153
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154 ## Expand '\t' to TAB for Matlab compatibility
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155 if (strcmp (delim, '\t'))
1a1e831fe6b4 dlmwrite.m: Expand '\t' to TAB when used as delimiter for Matlab compatibility (bug #39505).
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parents: 16668
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156 delim = "\t";
1a1e831fe6b4 dlmwrite.m: Expand '\t' to TAB when used as delimiter for Matlab compatibility (bug #39505).
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parents: 16668
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157 endif
1a1e831fe6b4 dlmwrite.m: Expand '\t' to TAB when used as delimiter for Matlab compatibility (bug #39505).
Rik <rik@octave.org>
parents: 16668
diff changeset
158
10936
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Jaroslav Hajek <highegg@gmail.com>
parents: 10793
diff changeset
159 if (ischar (file))
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Jaroslav Hajek <highegg@gmail.com>
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160 [fid, msg] = fopen (file, opentype);
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parents: 10793
diff changeset
161 elseif (isscalar (file) && isnumeric (file))
13765
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parents: 12462
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162 [fid, msg] = deal (file, "invalid file number");
10936
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parents: 10793
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163 else
11472
1740012184f9 Use uppercase for variable names in error() strings to match Info documentation. Only m-files done.
Rik <octave@nomad.inbox5.com>
parents: 11471
diff changeset
164 error ("dlmwrite: FILE must be a filename string or numeric FID");
10936
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parents: 10793
diff changeset
165 endif
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Jaroslav Hajek <highegg@gmail.com>
parents: 10793
diff changeset
166
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167 if (fid < 0)
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168 error (["dlmwrite: " msg]);
7580
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169 else
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parents:
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170 if (r > 0)
7581
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John W. Eaton <jwe@octave.org>
parents: 7580
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171 fprintf (fid, "%s",
11471
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parents: 11032
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172 repmat ([repmat(delim, 1, c + columns(M)-1), newline], 1, r));
7580
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173 endif
11471
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Rik <octave@nomad.inbox5.com>
parents: 11032
diff changeset
174 if (iscomplex (M))
13765
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parents: 12462
diff changeset
175 cprecision = regexprep (precision, '^%([-\d.])', '%+$1');
7580
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parents:
diff changeset
176 template = [precision, cprecision, "i", ...
10549
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diff changeset
177 repmat([delim, precision, cprecision, "i"], 1, ...
11471
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178 columns(M) - 1), newline ];
7580
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179 else
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Rik <octave@nomad.inbox5.com>
parents: 11032
diff changeset
180 template = [precision, repmat([delim, precision], 1, columns(M)-1),...
10549
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parents: 9630
diff changeset
181 newline];
7580
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182 endif
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parents:
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183 if (c > 0)
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diff changeset
184 template = [repmat(delim, 1, c), template];
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diff changeset
185 endif
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diff changeset
186 if (iscomplex (M))
994e2a93a8e2 Use uppercase 'A' to refer to matrix inputs in m-files.
Rik <octave@nomad.inbox5.com>
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diff changeset
187 M = M.';
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
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188 b = zeros (2*rows (M), columns (M));
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189 b(1: 2 : end, :) = real (M);
994e2a93a8e2 Use uppercase 'A' to refer to matrix inputs in m-files.
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diff changeset
190 b(2: 2 : end, :) = imag (M);
7580
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diff changeset
191 fprintf (fid, template, b);
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parents:
diff changeset
192 else
11471
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Rik <octave@nomad.inbox5.com>
parents: 11032
diff changeset
193 fprintf (fid, template, M.');
7580
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194 endif
10940
306e40d773a9 don't fclose stream in dlmwrite
Jaroslav Hajek <highegg@gmail.com>
parents: 10936
diff changeset
195 if (! isscalar (file))
306e40d773a9 don't fclose stream in dlmwrite
Jaroslav Hajek <highegg@gmail.com>
parents: 10936
diff changeset
196 fclose (fid);
306e40d773a9 don't fclose stream in dlmwrite
Jaroslav Hajek <highegg@gmail.com>
parents: 10936
diff changeset
197 endif
7580
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diff changeset
198 endif
13765
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Rik <octave@nomad.inbox5.com>
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diff changeset
199
7580
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diff changeset
200 endfunction
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parents:
diff changeset
201
13765
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parents: 12462
diff changeset
202
7580
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diff changeset
203 %!test
19470
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 17744
diff changeset
204 %! f = tempname ();
14363
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Rik <octave@nomad.inbox5.com>
parents: 14327
diff changeset
205 %! dlmwrite (f,[1,2;3,4],"precision","%5.2f","newline","unix","roffset",1,"coffset",1);
13765
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Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
206 %! fid = fopen (f,"rt");
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14327
diff changeset
207 %! f1 = char (fread (fid,Inf,"char")');
13765
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Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
208 %! fclose (fid);
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14327
diff changeset
209 %! dlmwrite (f,[5,6],"precision","%5.2f","newline","unix","coffset",1,"delimiter",",","-append");
13765
0d4c6d54b6a3 dlmwrite.m: Restore ability to use FID instead of filename.
Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
210 %! fid = fopen (f,"rt");
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14327
diff changeset
211 %! f2 = char (fread (fid,Inf,"char")');
13765
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Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
212 %! fclose (fid);
0d4c6d54b6a3 dlmwrite.m: Restore ability to use FID instead of filename.
Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
213 %! unlink (f);
7580
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parents:
diff changeset
214 %!
13765
0d4c6d54b6a3 dlmwrite.m: Restore ability to use FID instead of filename.
Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
215 %! assert (f1,",,\n, 1.00, 2.00\n, 3.00, 4.00\n");
0d4c6d54b6a3 dlmwrite.m: Restore ability to use FID instead of filename.
Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
216 %! assert (f2,",,\n, 1.00, 2.00\n, 3.00, 4.00\n, 5.00, 6.00\n");
0d4c6d54b6a3 dlmwrite.m: Restore ability to use FID instead of filename.
Rik <octave@nomad.inbox5.com>
parents: 12462
diff changeset
217