/usr/share/doc/mathgl/mathgl_en/mathgl_en_58.html is in mathgl-doc-en 2.1.3.1-4ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
<html>
<!-- This manual is for MathGL (version 2.1.2), a collection of classes and routines for scientific plotting. Please report any errors in this manual to mathgl.abalakin@gmail.org.
Copyright C 2008-2012 Alexey A. Balakin.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.2
or any later version published by the Free Software Foundation;
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
Texts. A copy of the license is included in the section entitled "GNU
Free Documentation License."
-->
<!-- Created on December 22, 2013 by texi2html 1.82
texi2html was written by:
Lionel Cons <Lionel.Cons@cern.ch> (original author)
Karl Berry <karl@freefriends.org>
Olaf Bachmann <obachman@mathematik.uni-kl.de>
and many others.
Maintained by: Many creative people.
Send bugs and suggestions to <texi2html-bug@nongnu.org>
-->
<head>
<title>MathGL 2.1.2: 6.7 Data changing</title>
<meta name="description" content="MathGL 2.1.2: 6.7 Data changing">
<meta name="keywords" content="MathGL 2.1.2: 6.7 Data changing">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="texi2html 1.82">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">
<!--
a.summary-letter {text-decoration: none}
blockquote.smallquotation {font-size: smaller}
pre.display {font-family: serif}
pre.format {font-family: serif}
pre.menu-comment {font-family: serif}
pre.menu-preformatted {font-family: serif}
pre.smalldisplay {font-family: serif; font-size: smaller}
pre.smallexample {font-size: smaller}
pre.smallformat {font-family: serif; font-size: smaller}
pre.smalllisp {font-size: smaller}
span.roman {font-family:serif; font-weight:normal;}
span.sansserif {font-family:sans-serif; font-weight:normal;}
ul.toc {list-style: none}
-->
</style>
</head>
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
<a name="Data-changing"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="mathgl_en_57.html#Make-another-data" title="Previous section in reading order"> < </a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_59.html#Interpolation" title="Next section in reading order"> > </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="mathgl_en_51.html#Data-processing" title="Beginning of this chapter or previous chapter"> << </a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_51.html#Data-processing" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_65.html#MGL-scripts" title="Next chapter"> >> </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="mathgl_en.html#Top" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_88.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Data-changing-1"></a>
<h2 class="section">6.7 Data changing</h2>
<a name="index-CumSum"></a>
<a name="index-Integral"></a>
<a name="index-Diff"></a>
<a name="index-Diff2"></a>
<a name="index-SinFFT"></a>
<a name="index-CosFFT"></a>
<a name="index-Hankel"></a>
<a name="index-Swap"></a>
<a name="index-Roll"></a>
<a name="index-Mirror"></a>
<a name="index-Sew"></a>
<a name="index-Smooth"></a>
<a name="index-Envelop"></a>
<a name="index-Norm"></a>
<a name="index-NormSl"></a>
<p>These functions change the data in some direction like differentiations, integrations and so on. The direction in which the change will applied is specified by the string parameter, which may contain ‘<samp>x</samp>’, ‘<samp>y</samp>’ or ‘<samp>z</samp>’ characters for 1-st, 2-nd and 3-d dimension correspondingly.
</p>
<p><a name="cumsum"></a>
</p><dl>
<dt><a name="index-cumsum"></a><u>MGL command:</u> <b>cumsum</b><i> dat 'dir'</i></dt>
<dt><a name="index-CumSum-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>CumSum</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-CumSum-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>CumSum</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fcumsum"></a><u>C function:</u> <code>void</code> <b>mgl_data_cumsum</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005fcumsum"></a><u>C function:</u> <code>void</code> <b>mgl_datac_cumsum</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Cumulative summation of the data in given direction or directions.
</p></dd></dl>
<p><a name="integrate"></a>
</p><dl>
<dt><a name="index-integrate"></a><u>MGL command:</u> <b>integrate</b><i> dat 'dir'</i></dt>
<dt><a name="index-Integral-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Integral</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-Integral-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Integral</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fintegral"></a><u>C function:</u> <code>void</code> <b>mgl_data_integral</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005fintegral"></a><u>C function:</u> <code>void</code> <b>mgl_datac_integral</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Integrates (like cumulative summation) the data in given direction or directions.
</p></dd></dl>
<p><a name="diff"></a>
</p><dl>
<dt><a name="index-diff"></a><u>MGL command:</u> <b>diff</b><i> dat 'dir'</i></dt>
<dt><a name="index-Diff-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Diff</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-Diff-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Diff</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fdiff"></a><u>C function:</u> <code>void</code> <b>mgl_data_diff</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005fdiff"></a><u>C function:</u> <code>void</code> <b>mgl_datac_diff</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Differentiates the data in given direction or directions.
</p></dd></dl>
<dl>
<dt><a name="index-diff-1"></a><u>MGL command:</u> <b>diff</b><i> dat xdat ydat [zdat=0]</i></dt>
<dt><a name="index-Diff-3"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Diff</b><i> (<code>const mglDataA &</code>x, <code>const mglDataA &</code>y)</i></dt>
<dt><a name="index-Diff-4"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Diff</b><i> (<code>const mglDataA &</code>x, <code>const mglDataA &</code>y, <code>const mglDataA &</code>z)</i></dt>
<dt><a name="index-mgl_005fdata_005fdiff_005fpar"></a><u>C function:</u> <code>void</code> <b>mgl_data_diff_par</b><i> (<code>HMDT</code> dat, <code>HCDT</code> x, <code>HCDT</code>y, <code>HCDT</code>z)</i></dt>
<dd><p>Differentiates the data specified parametrically in direction <var>x</var> with <var>y</var>, <var>z</var>=constant. Parametrical differentiation uses the formula (for 2D case): <em>da/dx = (a_j*y_i-a_i*y_j)/(x_j*y_i-x_i*y_j)</em> where <em>a_i=da/di, a_j=da/dj</em> denotes usual differentiation along 1st and 2nd dimensions. The similar formula is used for 3D case. Note, that you may change the order of arguments – for example, if you have 2D data a(i,j) which depend on coordinates {x(i,j), y(i,j)} then usual derivative along ‘<samp>x</samp>’ will be <code>Diff(x,y);</code> and usual derivative along ‘<samp>y</samp>’ will be <code>Diff(y,x);</code>.
</p></dd></dl>
<p><a name="diff2"></a>
</p><dl>
<dt><a name="index-diff2"></a><u>MGL command:</u> <b>diff2</b><i> dat 'dir'</i></dt>
<dt><a name="index-Diff2-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Diff2</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-Diff2-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Diff2</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fdiff2"></a><u>C function:</u> <code>void</code> <b>mgl_data_diff2</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005fdiff2"></a><u>C function:</u> <code>void</code> <b>mgl_datac_diff2</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Double-differentiates (like Laplace operator) the data in given direction.
</p></dd></dl>
<p><a name="sinfft"></a>
</p><dl>
<dt><a name="index-sinfft"></a><u>MGL command:</u> <b>sinfft</b><i> dat 'dir'</i></dt>
<dt><a name="index-SinFFT-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>SinFFT</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fsinfft"></a><u>C function:</u> <code>void</code> <b>mgl_data_sinfft</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Do Sine transform of the data in given direction or directions. The Sine transform is <em>\sum a_j \sin(k j)</em> (see <a href="http://en.wikipedia.org/wiki/Discrete_sine_transform#DST-I">http://en.wikipedia.org/wiki/Discrete_sine_transform#DST-I</a>).
</p></dd></dl>
<p><a name="cosfft"></a>
</p><dl>
<dt><a name="index-cosfft"></a><u>MGL command:</u> <b>cosfft</b><i> dat 'dir'</i></dt>
<dt><a name="index-CosFFT-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>CosFFT</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fcosfft"></a><u>C function:</u> <code>void</code> <b>mgl_data_cosfft</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Do Cosine transform of the data in given direction or directions. The Cosine transform is <em>\sum a_j \cos(k j)</em> (see <a href="http://en.wikipedia.org/wiki/Discrete_cosine_transform#DCT-I">http://en.wikipedia.org/wiki/Discrete_cosine_transform#DCT-I</a>).
</p></dd></dl>
<dl>
<dt><a name="index-FFT"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>FFT</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005ffft"></a><u>C function:</u> <code>void</code> <b>mgl_datac_fft</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Do Fourier transform of the data in given direction or directions. If <var>dir</var> contain ‘<samp>i</samp>’ then inverse Fourier is used. The Fourier transform is <em>\sum a_j \exp(i k j)</em> (see <a href="http://en.wikipedia.org/wiki/Discrete_Fourier_transform">http://en.wikipedia.org/wiki/Discrete_Fourier_transform</a>).
</p></dd></dl>
<p><a name="hankel"></a>
</p><dl>
<dt><a name="index-hankel"></a><u>MGL command:</u> <b>hankel</b><i> dat 'dir'</i></dt>
<dt><a name="index-Hankel-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Hankel</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-Hankel-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Hankel</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fhankel"></a><u>C function:</u> <code>void</code> <b>mgl_data_hankel</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005fhankel"></a><u>C function:</u> <code>void</code> <b>mgl_datac_hankel</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Do Hankel transform of the data in given direction or directions. The Hankel transform is <em>\sum a_j J_0(k j)</em> (see <a href="http://en.wikipedia.org/wiki/Hankel_transform">http://en.wikipedia.org/wiki/Hankel_transform</a>).
</p></dd></dl>
<p><a name="swap"></a>
</p><dl>
<dt><a name="index-swap"></a><u>MGL command:</u> <b>swap</b><i> dat 'dir'</i></dt>
<dt><a name="index-Swap-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Swap</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-Swap-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Swap</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fswap"></a><u>C function:</u> <code>void</code> <b>mgl_data_swap</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005fswap"></a><u>C function:</u> <code>void</code> <b>mgl_datac_swap</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Swaps the left and right part of the data in given direction (useful for Fourier spectrum).
</p></dd></dl>
<p><a name="roll"></a>
</p><dl>
<dt><a name="index-roll"></a><u>MGL command:</u> <b>roll</b><i> dat 'dir' num</i></dt>
<dt><a name="index-Roll-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Roll</b><i> (<code>char</code> dir, <code>num</code>)</i></dt>
<dt><a name="index-Roll-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Roll</b><i> (<code>char</code> dir, <code>num</code>)</i></dt>
<dt><a name="index-mgl_005fdata_005froll"></a><u>C function:</u> <code>void</code> <b>mgl_data_roll</b><i> (<code>HMDT</code> dat, <code>char</code> dir, <code>num</code>)</i></dt>
<dt><a name="index-mgl_005fdatac_005froll"></a><u>C function:</u> <code>void</code> <b>mgl_datac_roll</b><i> (<code>HADT</code> dat, <code>char</code> dir, <code>num</code>)</i></dt>
<dd><p>Rolls the data along direction <var>dir</var>. Resulting array will be out[i] = ini[(i+<var>num</var>)%nx] if <code>dir='x'</code>.
</p></dd></dl>
<p><a name="mirror"></a>
</p><dl>
<dt><a name="index-mirror"></a><u>MGL command:</u> <b>mirror</b><i> dat 'dir'</i></dt>
<dt><a name="index-Mirror-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Mirror</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-Mirror-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Mirror</b><i> (<code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdata_005fmirror"></a><u>C function:</u> <code>void</code> <b>mgl_data_mirror</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir)</i></dt>
<dt><a name="index-mgl_005fdatac_005fmirror"></a><u>C function:</u> <code>void</code> <b>mgl_datac_mirror</b><i> (<code>HADT</code> dat, <code>const char *</code>dir)</i></dt>
<dd><p>Mirror the left-to-right part of the data in given direction. Looks like change the value index <var>i</var>-><var>n-i</var>. Note, that the similar effect in graphics you can reach by using options (see section <a href="mathgl_en_27.html#Command-options">Command options</a>), for example, <code>surf dat; xrange 1 -1</code>.
</p></dd></dl>
<p><a name="sew"></a>
</p><dl>
<dt><a name="index-sew"></a><u>MGL command:</u> <b>sew</b><i> dat ['dir'='xyz' <code>da=2*pi</code>]</i></dt>
<dt><a name="index-Sew-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Sew</b><i> (<code>const char *</code>dir, <code>mreal</code> da=<code>2*M_PI</code>)</i></dt>
<dt><a name="index-mgl_005fdata_005fsew"></a><u>C function:</u> <code>void</code> <b>mgl_data_sew</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir, <code>mreal</code> da)</i></dt>
<dd><p>Remove value steps (like phase jumps after inverse trigonometric functions) with period <var>da</var> in given direction.
</p></dd></dl>
<p><a name="smooth"></a>
</p><dl>
<dt><a name="index-smooth"></a><u>MGL command:</u> <b>smooth</b><i> data <code>type</code> ['dir'='xyz']</i></dt>
<dt><a name="index-Smooth-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Smooth</b><i> (<code>const char *</code>dir=<code>"xyz"</code>, <code>mreal</code> delta=<code>0</code>)</i></dt>
<dt><a name="index-Smooth-2"></a><u>Method on <code>mglDataC</code>:</u> <code>void</code> <b>Smooth</b><i> (<code>const char *</code>dir=<code>"xyz"</code>, <code>mreal</code> delta=<code>0</code>)</i></dt>
<dt><a name="index-mgl_005fdata_005fsmooth"></a><u>C function:</u> <code>void</code> <b>mgl_data_smooth</b><i> (<code>HMDT</code> dat, <code>const char *</code>dir, <code>mreal</code> delta)</i></dt>
<dt><a name="index-mgl_005fdatac_005fsmooth"></a><u>C function:</u> <code>void</code> <b>mgl_datac_smooth</b><i> (<code>HADT</code> dat, <code>const char *</code>dir, <code>mreal</code> delta)</i></dt>
<dd><p>Smooths the data on specified direction or directions. String <var>dirs</var> specifies the dimensions which will be smoothed. It may contain characters: ‘<samp>x</samp>’ for 1st dimension, ‘<samp>y</samp>’ for 2nd dimension, ‘<samp>z</samp>’ for 3d dimension. If string <var>dir</var> contain: ‘<samp>0</samp>’ then does nothing, ‘<samp>3</samp>’ – linear averaging over 3 points, ‘<samp>5</samp>’ – linear averaging over 5 points. By default quadratic averaging over 5 points is used.
</p></dd></dl>
<p><a name="envelop"></a>
</p><dl>
<dt><a name="index-envelop"></a><u>MGL command:</u> <b>envelop</b><i> dat ['dir'='x']</i></dt>
<dt><a name="index-Envelop-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Envelop</b><i> (<code>char</code> dir=<code>'x'</code>)</i></dt>
<dt><a name="index-mgl_005fdata_005fenvelop"></a><u>C function:</u> <code>void</code> <b>mgl_data_envelop</b><i> (<code>HMDT</code> dat, <code>char</code> dir)</i></dt>
<dd><p>Find envelop for data values along direction <var>dir</var>.
</p></dd></dl>
<p><a name="norm"></a>
</p><dl>
<dt><a name="index-norm"></a><u>MGL command:</u> <b>norm</b><i> dat <code>v1 v2 [sym=off dim=0]</code></i></dt>
<dt><a name="index-Norm-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>Norm</b><i> (<code>mreal</code> v1=<code>0</code>, <code>mreal</code> v2=<code>1</code>, <code>bool</code> sym=<code>false</code>, <code>int</code> dim=<code>0</code>)</i></dt>
<dd><p>Normalizes the data to range [<var>v1</var>,<var>v2</var>]. If flag <var>sym</var>=<code>true</code> then symmetrical interval [-max(|v1|,|v2|), max(|v1|,|v2|)] is used. Modification will be applied only for slices >=<var>dim</var>.
</p></dd></dl>
<p><a name="normsl"></a>
</p><dl>
<dt><a name="index-normsl"></a><u>MGL command:</u> <b>normsl</b><i> dat <code>v1 v2</code> ['dir'='z' <code>keep=on sym=off</code>]</i></dt>
<dt><a name="index-NormSl-1"></a><u>Method on <code>mglData</code>:</u> <code>void</code> <b>NormSl</b><i> (<code>mreal</code> v1=<code>0</code>, <code>mreal</code> v2=<code>1</code>, <code>char</code> dir=<code>'z'</code>, <code>bool</code> keep_en=<code>true</code>, <code>bool</code> sym=<code>false</code>)</i></dt>
<dt><a name="index-mgl_005fdata_005fnorm_005fslice"></a><u>C function:</u> <code>void</code> <b>mgl_data_norm_slice</b><i> (<code>HMDT</code> dat, <code>mreal</code> v1, <code>mreal</code> v2, <code>char</code> dir, <code>int</code> keep_en, <code>int</code> sym)</i></dt>
<dd><p>Normalizes data slice-by-slice along direction <var>dir</var> the data in slices to range [<var>v1</var>,<var>v2</var>]. If flag <var>sym</var>=<code>true</code> then symmetrical interval [-max(|v1|,|v2|), max(|v1|,|v2|)] is used. If <var>keep_en</var> is set then maximal value of k-th slice will be limited by
<em>\sqrt\sum a_ij(k)/\sum a_ij(0)</em>.
</p></dd></dl>
<hr size="6">
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="mathgl_en_57.html#Make-another-data" title="Previous section in reading order"> < </a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_59.html#Interpolation" title="Next section in reading order"> > </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="mathgl_en_51.html#Data-processing" title="Beginning of this chapter or previous chapter"> << </a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_51.html#Data-processing" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_65.html#MGL-scripts" title="Next chapter"> >> </a>]</td>
</tr></table>
<p>
<font size="-1">
This document was generated by <em>Build Daemon user</em> on <em>December 22, 2013</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.82</em></a>.
</font>
<br>
</p>
</body>
</html>
|