Programmer Guide/Command Reference/EVAL/interp - Revision history

Toni at 14:22, 28 October 2025

2025-10-28T14:22:47Z

← Older revision		Revision as of 16:22, 28 October 2025
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	;Usage 1:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>		;Usage 1:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>
	:Create an interpolated copy of the vector <var>x</var> with length <var>n</var>.		:Create an interpolated copy of the vector <var>x</var> with length <var>n</var>.
	:;<var>x</var>:vector to be interpolated, x[i] = f(i)		:;<var>x</var>:vector to be interpolated, <var>x[i] = f(i)</var>
	:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
	:;<var>type</var>:the type of interpolation to perform		:;<var>type</var>:the type of interpolation to perform

Toni at 14:22, 28 October 2025

2025-10-28T14:22:27Z

← Older revision		Revision as of 16:22, 28 October 2025
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	;Usage 1:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>		;Usage 1:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>
	:Create an interpolated copy of the vector <var>x</var> with length <var>n</var>.		:Create an interpolated copy of the vector <var>x</var> with length <var>n</var>.
	:;<var>x</var>:vector to be interpolated		:;<var>x</var>:vector to be interpolated, x[i] = f(i)
	:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
	:;<var>type</var>:the type of interpolation to perform		:;<var>type</var>:the type of interpolation to perform

Toni at 14:00, 28 October 2025

2025-10-28T14:00:33Z

← Older revision		Revision as of 16:00, 28 October 2025
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	{{DISPLAYTITLE:{{SUBPAGENAME}}}}		{{DISPLAYTITLE:{{SUBPAGENAME}}}}
	~~Create an interpolated copy of the vector <var>x</var>.~~
	;Usage 1:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>		;Usage 1:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>
			:Create an interpolated copy of the vector <var>x</var> with length <var>n</var>.
	:;<var>x</var>:vector to be interpolated		:;<var>x</var>:vector to be interpolated
	:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
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	;Result:The interpolated vector ''y'' with length ''n''.		;Result:The interpolated vector ''y'' with length ''n''.
	;Usage 2:<code>interp(<var>x</var>, <var>y</var>, <var>xp</var> {, <var>type=1</var>})</code>		;Usage 2:<code>interp(<var>x</var>, <var>y</var>, <var>xp</var> {, <var>type=1</var>})</code>
			:Get interpolated values of function <var>y=f(x)</var> at the position(s) <var>xp</var>.
	:;<var>x</var>:x value vector		:;<var>x</var>:x value vector
	:;<var>y</var>:y value vector, ''y[i]'' = f(''x[i]'')		:;<var>y</var>:y value vector, ''y[i]'' = f(''x[i]'')

Toni at 13:54, 28 October 2025

2025-10-28T13:54:50Z

← Older revision		Revision as of 15:54, 28 October 2025
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	{{DISPLAYTITLE:{{SUBPAGENAME}}}}		{{DISPLAYTITLE:{{SUBPAGENAME}}}}
	Create an interpolated copy of the vector <var>x</var>.		Create an interpolated copy of the vector <var>x</var>.
	;Usage:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>		;Usage 1:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>
	:;<var>x</var>:vector to be interpolated		:;<var>x</var>:vector to be interpolated
	:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
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	::'''note''': The missing value handling is implemented only for linear interpolation (''type''='''0''')		::'''note''': The missing value handling is implemented only for linear interpolation (''type''='''0''')
	;Result:The interpolated vector ''y'' with length ''n''.		;Result:The interpolated vector ''y'' with length ''n''.
			;Usage 2:<code>interp(<var>x</var>, <var>y</var>, <var>xp</var> {, <var>type=1</var>})</code>
			:;<var>x</var>:x value vector
			:;<var>y</var>:y value vector, ''y[i]'' = f(''x[i]'')
			:;<var>xp</var>:position(s) for interpolation (number, vector or matrix)
			:;<var>type</var>:the type of interpolation to perform
			::''type''='''0''': linear interpolation
			::''type''='''1''': cubic spline interpolation
			;Result:The interpolated values ''yp'' (same type as ''xp'').
	;See also: [[../rpolyreg\|rpolyreg]], [[../qinterp\|qinterp]], [[../map2map\|map2map]]		;See also: [[../rpolyreg\|rpolyreg]], [[../qinterp\|qinterp]], [[../map2map\|map2map]]

	[[../#Functions\|<function list>]]		[[../#Functions\|<function list>]]

Toni at 08:58, 30 September 2015

2015-09-30T08:58:15Z

← Older revision		Revision as of 10:58, 30 September 2015
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	:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
	:;<var>type</var>:the type of interpolation to perform		:;<var>type</var>:the type of interpolation to perform
	::''type''='''0''' -> linear interpolation		::''type''='''0''': linear interpolation
	::''type''='''1''' -> cubic spline interpolation		::''type''='''1''': cubic spline interpolation
	:;<var>mv</var>:the value to use for ''missing values''. If ''mv'' is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.		:;<var>mv</var>:the value to use for ''missing values''. If ''mv'' is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.
	::'''note''': The missing value handling is implemented only for linear interpolation (''type''='''0''')		::'''note''': The missing value handling is implemented only for linear interpolation (''type''='''0''')

Toni at 08:27, 30 September 2015

2015-09-30T08:27:17Z

← Older revision		Revision as of 10:27, 30 September 2015
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	:;<var>x</var>:vector to be interpolated		:;<var>x</var>:vector to be interpolated
	:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
	:;<var>type</var>:the type of interpolation to perform~~; currently only~~ linear interpolation (''type''='''0'''~~) is supported.~~		:;<var>type</var>:the type of interpolation to perform
			::''type''='''0''' -> linear interpolation
			::''type''='''1''' -> cubic spline interpolation
	:;<var>mv</var>:the value to use for ''missing values''. If ''mv'' is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.		:;<var>mv</var>:the value to use for ''missing values''. If ''mv'' is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.
			::'''note''': The missing value handling is implemented only for linear interpolation (''type''='''0''')
	;Result:The interpolated vector ''y'' with length ''n''.		;Result:The interpolated vector ''y'' with length ''n''.
	;See also: [[../rpolyreg\|rpolyreg]], [[../qinterp\|qinterp]], [[../map2map\|map2map]]		;See also: [[../rpolyreg\|rpolyreg]], [[../qinterp\|qinterp]], [[../map2map\|map2map]]

	[[../#Functions\|<function list>]]		[[../#Functions\|<function list>]]

193.171.195.48 at 10:03, 21 April 2011

2011-04-21T10:03:07Z

← Older revision		Revision as of 12:03, 21 April 2011
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	:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
	:;<var>type</var>:the type of interpolation to perform; currently only linear interpolation (''type''='''0''') is supported.		:;<var>type</var>:the type of interpolation to perform; currently only linear interpolation (''type''='''0''') is supported.
	:;<var>mv</var>:the value to use for 'missing values'. If mv is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.		:;<var>mv</var>:the value to use for ''missing values''. If ''mv'' is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.
	;Result:The interpolated vector ''y'' with length ''n''.		;Result:The interpolated vector ''y'' with length ''n''.
	;See also: [[../rpolyreg\|rpolyreg]], [[../qinterp\|qinterp]], [[../map2map\|map2map]]		;See also: [[../rpolyreg\|rpolyreg]], [[../qinterp\|qinterp]], [[../map2map\|map2map]]

	[[../#Functions\|<function list>]]		[[../#Functions\|<function list>]]

193.171.195.48 at 10:02, 21 April 2011

2011-04-21T10:02:39Z

← Older revision		Revision as of 12:02, 21 April 2011
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	Create an interpolated copy of the vector <var>x</var>.		Create an interpolated copy of the vector <var>x</var>.
	;Usage:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>		;Usage:<code>interp(<var>x</var>, <var>n</var>, <var>type</var> {, <var>mv</var>})</code>
	:;<var>x</var>~~the~~ vector to be interpolated		:;<var>x</var>:vector to be interpolated
	:;<var>n</var>~~the~~ length of the interpolated vector; the interpolated vector can be shorter or longer than the original		:;<var>n</var>:length of the interpolated output vector; the interpolated vector can be shorter or longer than the original
	:;<var>type</var>:the type of interpolation to perform; currently only linear interpolation (''type''='''0''') is supported.		:;<var>type</var>:the type of interpolation to perform; currently only linear interpolation (''type''='''0''') is supported.
	:;<var>mv</var>:the value to use for 'missing values'. If mv is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.		:;<var>mv</var>:the value to use for 'missing values'. If mv is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.

193.171.195.48 at 10:02, 21 April 2011

2011-04-21T10:02:14Z

← Older revision		Revision as of 12:02, 21 April 2011
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	:;<var>mv</var>:the value to use for 'missing values'. If mv is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.		:;<var>mv</var>:the value to use for 'missing values'. If mv is given, then interpolation is stopped when <code>''x''[i] = ''mv''</code>. This means that the sections without missing values are individually interpolated. If ''mv'' is not supplied, the whole vector ''x'' is interpolated.
	;Result:The interpolated vector ''y'' with length ''n''.		;Result:The interpolated vector ''y'' with length ''n''.
			;See also: [[../rpolyreg\|rpolyreg]], [[../qinterp\|qinterp]], [[../map2map\|map2map]]

	~~;See also:~~ [[~~Programmer_Guide~~/~~Command_Reference/EVAL/rpolyreg\|rpolyreg]], [[Programmer_Guide/Command_Reference/EVAL/qinterp\|qinterp]], [[Programmer_Guide/Command_Reference/EVAL/map2map\|map2map]]~~		[[../#Functions\|<function list>]]

	~~[[Programmer_Guide/Command_Reference/EVAL~~#Functions\|<function list>]]

193.171.195.48 at 08:06, 12 April 2011

2011-04-12T08:06:14Z

← Older revision		Revision as of 10:06, 12 April 2011
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	;Result:The interpolated vector ''y'' with length ''n''.		;Result:The interpolated vector ''y'' with length ''n''.

	;See also: [[Programmer_Guide/Command_Reference/EVAL/rpolyreg\|rpolyreg]], [[Programmer_Guide/Command_Reference/EVAL/qinterp\|qinterp]]		;See also: [[Programmer_Guide/Command_Reference/EVAL/rpolyreg\|rpolyreg]], [[Programmer_Guide/Command_Reference/EVAL/qinterp\|qinterp]], [[Programmer_Guide/Command_Reference/EVAL/map2map\|map2map]]

	[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]		[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]