Importing IGOR PRO project files or wave files
Jakub Bialek
Did anyone try to import .pxp or .ibw files from IGOR PRO to Matlab? I cant find anywhere how to decompress .pxp or convert from .ibw (igor binary wave) to text. I need to use Igor output in Matlab...
Any help?
JB
Jakub Bialek
Anyone...I'm stuck...
Jakub Bialek
Still no-one? :(
hillel....@gmail.com
> "Jakub Bialek" <lik...@gmail.com> wrote in message <gr4uar$l3...@fred.mathworks.com>...
> > "Jakub Bialek" <lik...@gmail.com> wrote in message <gr280t$r0...@fred.mathworks.com>...
> > > Hi,
>
> > > Did anyone try to import .pxp or .ibw files from IGOR PRO to Matlab? I cant find anywhere how to decompress .pxp or convert from .ibw (igor binary wave) to text. I need to use Igor output in Matlab...
> > > Any help?
>
> > > JB
>
> > Anyone...I'm stuck...
>
> Still no-one? :(
Hi-
I'm also looking to export .pxp files to Matlab. Did you find a
solution?
Thanks
HAA
Richard Naud
> Did anyone try to import .pxp or .ibw files from IGOR PRO to Matlab? I cant find anywhere how to decompress .pxp or convert from .ibw (igor binary wave) to text.
I have done the parsing for some of the ibw versions in Matlab. I am still testing the programs but please tell me if you find bugs. The code can be found here:
Hope this helps.
Richard
Roberto
Hi Richard,
I'm looking for a program to import .pxp or .ibw files from IGOR PRO to Matlab, or to convert .ibw to text.
Any help?
>The code can be found here:
where?
Thank you!
Roberto
Roberto
Did you find something??
Me too, I need to import .ibw files in matlab... or save them in txt format... any help??...
Thank you
Roberto
Rick
two projects:
http://lcn.epfl.ch/~naud/code/ReadIBW.py
http://code.google.com/p/hooke/source/browse/trunk/mfp3d.py?spec=svn258&r=258
Or you can download a trial of Igor Pro, open the files, and export
as .csv or some other delimited text file. While you are at it, you
can examine
...\Technical Notes\Igor Tech Notes\TN003 Igor binary format\
in the installation folder which has C source code for writing your
own reader of Igor binary files.
Bass
> Me too, I need to import .ibw files in matlab... or save them in txt format... any help??...
> Thank you
>
> Roberto
Did you have any luck finding a solution for importing Igor Pro files into matlab?
Bass
Did you have any luck finding a solution for importing Igor Pro files into matlab?
Jakub Bialek
Yes, try this.
just copy paste into notepad and save it with extension .m
function D = IBWread(FN);
% IBWread - read Igor wave from IBW file
% D = IBWread('Foo.ibw') reads Igor file Foo.ibw into struct D.
if exist('fullfilename', 'file'), FFN = fullfilename(FN, cd, '.ibw');
else, FFN = FN;
end
% read headers
[D.binHeader, D.waveHeader, FFN] = readIBWheaders(FN);
fid = fopen(FFN,'r');
fid = fopen(FFN,'r');
% For numeric waves, the type field is interpreted bitwise. One of the following bits, as represented by symbols defined in IgorBin.h, will be set:
%
% % #define NT_CMPLX 1 % Complex numbers.
% % #define NT_FP32 2 % 32 bit fp numbers.
% % #define NT_FP64 4 % 64 bit fp numbers.
% % #define NT_I8 8 % 8 bit signed integer. Requires Igor Pro 2.0 or later.
% % #define NT_I16 0x10 % 16 bit integer numbers. Requires Igor Pro 2.0 or later.
% % #define NT_I32 0x20 % 32 bit integer numbers. Requires Igor Pro 2.0 or later.
% % #define NT_UNSIGNED 0x40 % Makes above signed integers unsigned. Requires Igor Pro 3.0 or later.
% NT_FP64 64-bit floating point (double)
% NT_FP32 32-bit floating point (float)
% NT_I32 32 bit integer (long)
% NT_16 16 bit integer (short)
% NT_I8 8 bit integer (char)
datatype = D.waveHeader.type;
CMPLX = rem(datatype,2);
if CMPLX, datatype = datatype-1; end
switch datatype,
case 0, prec = '*char';
case 2, prec = 'single';
case 4, prec = 'double';
case 8, prec = 'int8';
case 16, prec = 'int16';
case 32, prec = 'int32';
case 64+8, prec = 'uint8';
case 64+16, prec = 'uint16';
case 64+32, prec = 'uint32';
otherwise, error('Invalid numerical datatype.');
end
D.bname = D.waveHeader.bname;
% The date/time is store as seconds since midnight, January 1, 1904.
D.creationDate = local_igorTime2vec(D.waveHeader.creationDate);
D.modDate = local_igorTime2vec(D.waveHeader.creationDate);
switch D.binHeader.version,
case 2,
% The version 2 file has the following general layout.
% BinHeader2 structure: 16 bytes
% WaveHeader2 structure excluding wData field; 110 bytes
% Wave data: Variable size
D.Nsam = D.waveHeader.npnts;
D.Ndim = 1;
% X value for point p = hsA*p + hsB
D.dx = D.waveHeader.hsA;
D.x0 = D.waveHeader.hsB;
D.x1 = D.x0+D.Nsam*D.dx;
fseek(fid, 16+110, 'bof');
NN = D.Nsam*(1+double(CMPLX)); % if complex, read twice as many numbers
D.y = fread(fid, NN, prec);
if CMPLX, D.y = D.y(1:2:end) + i*D.y(2:2:end); end; % Re & Im values are interleaved
case 5,
% The version 5 file has the following general layout.
% BinHeader5 structure 64 bytes
% WaveHeader5 structure excluding wData field 320 bytes
% Wave data Variable size
% Optional wave dependency formula Variable size
% Optional wave note data Variable size
D.Nsam = D.waveHeader.npnts;
D.Ndim = sum(D.waveHeader.nDim>0);
% X offset & spacing (documentation is obscure)
D.dx = D.waveHeader.sfA(1:D.Ndim);
D.x0 = D.waveHeader.sfB(1:D.Ndim);
D.x1 = nan; % D.x0+D.Nsam*D.dx;
fseek(fid, 64+320, 'bof');
NN = D.Nsam*(1+double(CMPLX)); % if complex, read twice as many numbers
if isequal(0,datatype), % text data
% Number of bytes of wave data = wfmSize - (sizeof(WaveHeader5) - 4)
NN = D.binHeader.wfmSize-320;
D.y = fread(fid, NN, prec)';
else, % numerical data
D.y = fread(fid, NN, prec);
end
if CMPLX, D.y = D.y(1:2:end) + i*D.y(2:2:end); end; % Re & Im values are interleaved
if ~isempty(D.y) && D.Ndim>1,
D.y = reshape(D.y, D.waveHeader.nDim(1:D.Ndim));
end
end
D.WaveNotes = local_readNotes(fid, D.binHeader);
if isequal(0,datatype), % partition text data into lines using string indices stored @ eof
D = local_partition_text(fid, D);
end
fseek(fid,0,'eof');
D.fileSize = ftell(fid);
fclose(fid);
%===============================
function DV=local_igorTime2vec(it);
% igor time -> date vector a la Matlab
% The date/time is store as seconds since midnight, January 1, 1904.
Nsec_4year = 126230400;
idate_1988 = 21*uint32(Nsec_4year); % # seconds between 1-jan-1904 & 1-jan-1988
it = double(it-idate_1988); % smaller numbers-> use ordinary numbers ("doubles")
M4 = floor(it/Nsec_4year);
YR = double(1988+4*M4);
it = double(it-M4*Nsec_4year);
last_it = it;
while 1, % subtract years as long as they fit
s = etime([YR+1 1 1 0 0 0], [YR 1 1 0 0 0]);
if it<s, break; end % we went too far
YR = YR+1;
it = it-s;
end
MNTH = 1;
while 1, % subtract months as long as they fit
s = etime([YR MNTH+1 1 0 0 0], [YR MNTH 1 0 0 0]);
if it<s, break; end % we went too far
MNTH = MNTH+1;
it = it-s;
end
DAY = 1;
while 1, % subtract days as long as they fit
s = etime([YR MNTH DAY+1 0 0 0], [YR MNTH DAY 0 0 0]);
if it<s, break; end % we went too far
DAY = DAY+1;
it = it-s;
end
HR = floor(it/60^2); it = it-HR*60^2;
MIN = floor(it/60); SEC = it-MIN*60;
DV = [YR, MNTH, DAY, HR, MIN, SEC];
if ~isequal(last_it, etime(DV, [1988+4*M4 1 1 0 0 0])),
error('date error');
end
function Nts = local_readNotes(fid, B);
switch B.version,
case 2,
% BinHeader2 structure 16 bytes
% WaveHeader2 structure excluding wData field 110 bytes
% Wave data Variable size
% 16 bytes of padding 16 bytes
dum = fread(fid,16,'char');
% Optional wave note data
Nts = fread(fid, B.noteSize, '*char').';
case 5,
% BinHeader5 structure 64 bytes
% WaveHeader5 structure excluding wData field 320 bytes
% Wave data Variable size
% Optional wave dependency formula Variable size
dum = fread(fid,B.formulaSize, 'char');
% Optional wave note data Variable size
Nts = fread(fid, B.noteSize, '*char').';
end
function D = local_partition_text(fid, D);
% read sizeindices and chop text accordingly, must be called after reading
% notes
bH = D.binHeader;
% skip other stuff in file
% The version 5 file has the following general layout.
% BinHeader5 structure 64 bytes
% WaveHeader5 structure excluding wData field 320 bytes
% Wave data Variable size
% Optional wave dependency formula Variable size
% Optional wave note data Variable size
% Optional extended data units data Variable size
% Optional extended dimension units data Variable size
% Optional dimension label data Variable size
% String indices used for text waves only Variable size
dum=fseek(fid, -bH.sIndicesSize, 'eof'); % string indices are last in file; it's easier to refer from end-of-file
% bH.sIndicesSize; # bytes of string indices stored for the wave if the wave type is text.
% String indices are used to determine the offset in the file and the number of bytes for each element of the text wave.
sIdx = [0 fread(fid, bH.sIndicesSize/4, 'uint32').'];
for ii=1:numel(sIdx)-1,
STR{ii,1} = D.y(sIdx(ii)+1:sIdx(ii+1));
end
D.y = STR;
% long sIndicesSize; The size of string indicies if this is a text wave.
Vassilis Kechagias
Many thanks for the effort Jakub!
However, it's not working for me. It appears that the "readIBWheaders" function is missing.
Any thoughts?
Vassilis
Jakub Bialek
I forgot to include two files...
this is main file:
http://www.filesonic.com/file/351401434/IBWread.m
and here are includes:
http://www.filesonic.com/file/351325294/readIBWbinheader.m
http://www.filesonic.com/file/351325304/readIBWheaders.m
Please report any problem with them :)
Enjoy!
Ender
What about .pxp files? I have an Igor .pxp file that I would like to import into MATLAB
--Ender--
Aina Castells
Thank you for sharing, I use this a lot with my electrophysiology signals. Could you please reupload the files? As they're not available anymore and as I'm using another computer I don't have them here.
Thank you very much,
Aina
Boon Ping
May I know if it's possible to share your header files in txt?
Best regards,
BP
Jakub Bialek
"Aina Castells" <aina_c...@hotmail.com> wrote in message <j5s6i3$hv5$1...@newscl01ah.mathworks.com>...
Boon Ping
Have you consider to post your files in the File Exchange section? It will be good as everyone can just download it from there.
Best regards,
Boon Ping
"Jakub Bialek" wrote in message <jgtoun$nsb$1...@newscl01ah.mathworks.com>...
Tom
Your files (readIBWbinheader.m, readIBWheaders.m, IBWread.m) are not available anymore. Could you post them again, maybe somewhere else?
Thanks,
Tom
Vassilis Kechagias
Save/O/P=Path_name/J/W 'wave' as txt_name,
where 'Path_name' is the file path in which you 'll save, 'wave' is a duplicate of your wave, and 'txt_name' is a string with the name of the file + '.txt' at the end.
In case it can help anyone here is my small script. It will basically just loop through all the waves named 'voltageX', where 'X' is an index number. It has a bug that I didn't care to fix: you have to change you 'Current data folder' from the 'root' to any other (in Data Browser create a new folder, if necessary, then right click->'Set Current Data Folder'). You also need to create a Path named 'Path_name by going to Misc->New Path.
After these steps are done you can go to the Command Window and call the function:
e.g.
ExportTxt(0, 50)
will export all waves starting with 'voltage' in the path named 'Path_name'.
Cheers
------------------------------------------------------------------------------------
#pragma rtGlobals=1 // Use modern global access method.
Function ExportTxt(firstwave, lastwave)
Variable firstwave, lastwave
Variable i
String wave_base="voltage"
for (i=firstwave;i<=lastwave;i+=1)
String wave_name = wave_base + num2str(i)
Wave new_wave
Duplicate/O ::$wave_name, new_wave ; DelayUpdate
String txt_name = wave_base + num2str(i) +".txt"
Save/O/P=Path_name/J/W 'new_wave' as txt_name
endfor
End
------------------------------------------------------------------------------------
Ryan
Cheers,
Ryan
Jacob
>
> Cheers,
> Ryan
http://www.mathworks.com/matlabcentral/fileexchange/index?term=tag%3A%22igor2matlab%22
Thanks Jakub!
I'm also pasting the text for these files below, first function is readIBWbinheader, second function is readIBWheaders and I separated them by several blank lines. These subfiles, along with IBWread (above) worked for me for initial opening of IBW files, though I only tried two different files.
function H = readIBWbinheader(FFN);
% readIBWbinheader - read BinHeader segment of Igor IBW file
% H = readIBWbinheader('foo') reads BinHeader of file Foo.ibw
% IBW version 2,5 only
MAXDIMS = 4;
fid = fopen(FFN,'r');
switch H.version,
case 2, % typedef struct BinHeader2 {
H.wfmSize = fread(fid,1,'uint32'); % long wfmSize; // The size of the WaveHeader2 data structure plus the wave data plus 16 bytes of padding.
H.noteSize = fread(fid,1,'uint32'); % long noteSize; // The size of the note text.
H.pictSize = fread(fid,1,'uint32'); % long pictSize; // Reserved. Write zero. Ignore on read.
H.checksum = fread(fid,1,'int16'); % short checksum; // Checksum over this header and the wave header.
case 5,
H.checksum = fread(fid,1,'short');
H.wfmSize = fread(fid,1,'long'); % The size of the WaveHeader5 data structure plus the wave data.
H.formulaSize = fread(fid,1,'long'); % The size of the dependency formula, if any.
H.noteSize = fread(fid,1,'long'); % The size of the note text.
H.dataEUnitsSize = fread(fid,1,'long'); % The size of optional extended data units.
H.dimEUnitsSize = fread(fid,MAXDIMS,'long'); % The size of optional extended dimension units.
H.dimLabelsSize = fread(fid,MAXDIMS,'long'); % The size of optional dimension labels.
H.sIndicesSize = fread(fid,1,'long'); ; % The size of string indicies if this is a text wave.
H.optionsSize1 = fread(fid,1,'long'); ; % Reserved. Write zero. Ignore on read.
H.optionsSize2 = fread(fid,1,'long'); ; % Reserved. Write zero. Ignore on read.
otherwise,
end % switch H.Version
fclose(fid);
if ~ismember(H.version,[2 5]),
error(['Cannot read version ' num2str(H.version) ' IBW files - only versions 2,5 are okay.']);
end
%==FROM IgorBin.h =====================
% #define MAXDIMS 4
%
% typedef struct BinHeader5 {
% short version; // Version number for backwards compatibility.
% short checksum; // Checksum over this header and the wave header.
% long wfmSize; // The size of the WaveHeader5 data structure plus the wave data.
% long formulaSize; // The size of the dependency formula, if any.
% long noteSize; // The size of the note text.
% long dataEUnitsSize; // The size of optional extended data units.
% long dimEUnitsSize[MAXDIMS]; // The size of optional extended dimension units.
% long dimLabelsSize[MAXDIMS]; // The size of optional dimension labels.
% long sIndicesSize; // The size of string indicies if this is a text wave.
% long optionsSize1; // Reserved. Write zero. Ignore on read.
% long optionsSize2; // Reserved. Write zero. Ignore on read.
% } BinHeader5;
function [BH, H, FFN] = readIBWheaders(FFN);
% readIBWheaders - read BinHeader & WaveHeader segments of Igor IBW file
% [BH, WH, FFN] = readIBWheaders('foo') reads BinHeader & WaveHeader of
% file Foo.ibw - Versions 2 and 5 only. FFN is full filename.
% % 1 byte char
% % 2 bytes short
% % 4 bytes int, long, float, Handle, any kind of pointer
% % 8 bytes double
MAXDIMS = 4;
MAX_WAVE_NAME2 = 18; % Maximum length of wave name in version 1 and 2 files. Does not include the trailing null.
MAX_WAVE_NAME5 = 31; % Maximum length of wave name in version 5 files. Does not include the trailing null.
MAX_UNIT_CHARS = 3;
BH = readIBWbinheader(FFN);
% The version 2 file has the following general layout.
% BinHeader2 structure: 16 bytes
% WaveHeader2 structure excluding wData field; 110 bytes
% Wave data: Variable size
H.type = fread(fid,1, 'uint16'); % short type; % See types (e.g. NT_FP64) above. Zero for text waves.
H.WaveHeader2 = fread(fid,1, 'uint32'); % struct WaveHeader2 **next; // Used in memory only. Write zero. Ignore on read.
H.bname = local_char(fread(fid, MAX_WAVE_NAME2+2, 'char')); % char bname[MAX_WAVE_NAME2+2]; // Name of wave plus trailing null.
H.whVersion = fread(fid,1, 'uint16'); % short whVersion; // Write 0. Ignore on read.
H.srcFldr = fread(fid,1, 'uint16'); % short srcFldr; // Used in memory only. Write zero. Ignore on read.
H.fileName = fread(fid,1, 'uint32'); % Handle fileName; // Used in memory only. Write zero. Ignore on read.
%
H.dataUnits = local_char(fread(fid, MAX_UNIT_CHARS+1, 'char')); % char dataUnits[MAX_UNIT_CHARS+1]; // Natural data units go here - null if none.
H.xUnits = local_char(fread(fid, MAX_UNIT_CHARS+1, 'char')); % char xUnits[MAX_UNIT_CHARS+1]; // Natural x-axis units go here - null if none.
%
H.npnts = fread(fid,1, 'uint32'); % long npnts; // Number of data points in wave.
%
H.aModified = fread(fid,1, 'uint16'); % short aModified; // Used in memory only. Write zero. Ignore on read.
H.hsA = fread(fid,1, 'double'); % double hsA,hsB; // X value for point p = hsA*p + hsB
H.hsB = fread(fid,1, 'double'); % double hsA,hsB; // X value for point p = hsA*p + hsB
%
H.wModified = fread(fid,1, 'uint16'); % short wModified; // Used in memory only. Write zero. Ignore on read.
H.swModified = fread(fid,1, 'uint16'); % short swModified; // Used in memory only. Write zero. Ignore on read.
H.fsValid = fread(fid,1, 'uint16'); % short fsValid; // True if full scale values have meaning.
H.topFullScale = fread(fid,1, 'double'); % double topFullScale,botFullScale; // The min full scale value for wave.
H.botFullScale = fread(fid,1, 'double'); % double topFullScale,botFullScale; // The min full scale value for wave.
%
H.useBits = fread(fid,1, 'char'); % char useBits; // Used in memory only. Write zero. Ignore on read.
H.kindBits = fread(fid,1, 'char'); % char kindBits; // Reserved. Write zero. Ignore on read.
H.formula = fread(fid,1, 'uint32'); % void **formula; // Used in memory only. Write zero. Ignore on read.
H.depID = fread(fid,1, 'uint32'); % long depID; // Used in memory only. Write zero. Ignore on read.
H.creationDate = fread(fid,1, '*uint32'); % unsigned long creationDate; // DateTime of creation. Not used in version 1 files.
H.platform = fread(fid,1, 'uint8'); % unsigned char platform; // 0=unspecified, 1=Macintosh, 2=Windows; Added for Igor Pro 5.5.
% dummy = fread(fid,1, 'uint8'); % align
H.wUnused = fread(fid,1, 'uint8'); % char wUnused[1]; // Reserved. Write zero. Ignore on read.
%
H.modDate = fread(fid,1, '*uint32'); % unsigned long modDate; // DateTime of last modification.
H.waveNoteH = fread(fid,1, 'uint32'); % Handle waveNoteH; // Used in memory only. Write zero. Ignore on read.
%
H.wData = fread(fid,4, 'single').'; % float wData[4]; // The start of the array of waveform data.
% The version 5 file has the following general layout.
% BinHeader5 structure: 64 bytes
% WaveHeader5 structure excluding wData field: 320 bytes
% Wave data: Variable size
%
H.next = fread(fid,1, 'int32'); % link to next wave in linked list.
%
H.creationDate = fread(fid,1, 'uint32'); % DateTime of creation.
H.modDate = fread(fid,1, 'uint32'); % DateTime of creation.
%
H.npnts = fread(fid,1, 'int32'); % Total number of points (multiply dimensions up to first zero).
H.type = fread(fid,1, 'uint16'); % See types (e.g. NT_FP64) above. Zero for text waves.
H.dLock = fread(fid, 1, 'int16'); % Reserved. Write zero. Ignore on read.
%
H.whpad1 = fread(fid, 6, 'char').'; % Reserved. Write zero. Ignore on read.
H.whVersion = fread(fid, 1, 'int16'); % Write 1. Ignore on read.
H.bname = local_char(fread(fid, MAX_WAVE_NAME5+1, 'char')); % Name of wave plus trailing null.
H.whpad2 = fread(fid, 1, 'int32'); % long Reserved. Write zero. Ignore on read.
H.dFolder = fread(fid, 1, 'int32'); % ptr Used in memory only. Write zero. Ignore on read.
% % Dimensioning info. [0] == rows, [1] == cols etc
H.nDim = fread(fid, MAXDIMS, 'int32').'; % long nDim[MAXDIMS] Number of of items in a dimension -- 0 means no data.
H.sfA = fread(fid, MAXDIMS, 'double').'; % double sfA[MAXDIMS]; Index value for element e of dimension d = sfA[d]*e + sfB[d].
H.sfB = fread(fid, MAXDIMS, 'double').'; % double sfB[MAXDIMS];% double sfB[MAXDIMS];
% %
% % % SI units
H.dataUnits = local_char(fread(fid, MAX_UNIT_CHARS+1, 'char')); % char dataUnits[MAX_UNIT_CHARS+1]; % Natural data units go here - null if none.
H.dimUnits = fread(fid, MAXDIMS*(MAX_UNIT_CHARS+1), '*char').'; % % char dimUnits[MAXDIMS][MAX_UNIT_CHARS+1]; % Natural dimension units go here - null if none.
% %
H.fsValid = fread(fid, 1, 'uint16'); % % short fsValid; % TRUE if full scale values have meaning.
H.whpad3 = fread(fid, 1, 'int16'); % % short whpad3; % Reserved. Write zero. Ignore on read.
H.topFullScale = fread(fid, 1, 'double');
H.botFullScale = fread(fid, 1, 'double'); % % double topFullScale,botFullScale; % The max and max full scale value for wave.
% %
H.dataEUnits = fread(fid, 1, 'int32'); % % Handle dataEUnits; % Used in memory only. Write zero. Ignore on read.
H.dimEUnits = fread(fid, MAXDIMS, 'int32').'; % % Handle dimEUnits[MAXDIMS]; % Used in memory only. Write zero. Ignore on read.
H.dimLabels = fread(fid, MAXDIMS, 'int32').'; % % Handle dimLabels[MAXDIMS]; % Used in memory only. Write zero. Ignore on read.
% %
H.waveNoteH = fread(fid, 1, 'int32'); % % Handle waveNoteH; % Used in memory only. Write zero. Ignore on read.
% %
H.platform = fread(fid, 1, 'uint8'); % % unsigned char platform; % 0=unspecified, 1=Macintosh, 2=Windows; Added for Igor Pro 5.
H.skip_junk________ = fread(fid,80,'char').';
% H. = fread(fid, 1, '');
% % unsigned char spare[3];
% H. = fread(fid, 1, '');
% %
% H. = fread(fid, 1, '');
% % long whUnused[13]; % Reserved. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% %
% H. = fread(fid, 1, '');
% % long vRefNum, dirID; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% %
% H. = fread(fid, 1, '');
% % % The following stuff is considered private to Igor.
% H. = fread(fid, 1, '');
% %
% H. = fread(fid, 1, '');
% % short aModified; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% % short wModified; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% % short swModified; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% %
% H. = fread(fid, 1, '');
% % char useBits; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% % char kindBits; % Reserved. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% % void **formula; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% % long depID; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% %
% H. = fread(fid, 1, '');
% % short whpad4; % Reserved. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% % short srcFldr; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% % Handle fileName; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% %
% H. = fread(fid, 1, '');
% % long **sIndices; % Used in memory only. Write zero. Ignore on read.
% H. = fread(fid, 1, '');
% %
H.wData = fread(fid, 1, 'single');
% % float wData[1]; % The start of the array of data. Must be 64 bit aligned.
% H. = fread(fid, 1, '');
% };
end % switch BH.version
H.EOH_pos = ftell(fid);
fclose(fid);
%==FROM IgorBin.h =====================
% #define MAXDIMS 4
% % #define MAX_WAVE_NAME5 31 // Maximum length of wave name in version 5 files. Does not include the trailing null.
% % #define MAX_UNIT_CHARS 3
% % #define NT_CMPLX 1 % Complex numbers.
% % #define NT_FP32 2 % 32 bit fp numbers.
% % #define NT_FP64 4 % 64 bit fp numbers.
% % #define NT_I8 8 % 8 bit signed integer. Requires Igor Pro 2.0 or later.
% % #define NT_I16 0x10 % 16 bit integer numbers. Requires Igor Pro 2.0 or later.
% % #define NT_I32 0x20 % 32 bit integer numbers. Requires Igor Pro 2.0 or later.
% % #define NT_UNSIGNED 0x40 % Makes above signed integers unsigned. Requires Igor Pro 3.0 or later.
%
% struct WaveHeader5 **next; % link to next wave in linked list.
%
% unsigned long creationDate; % DateTime of creation.
% unsigned long modDate; % DateTime of last modification.
%
% long npnts; % Total number of points (multiply dimensions up to first zero).
% short type; % See types (e.g. NT_FP64) above. Zero for text waves.
% short dLock; % Reserved. Write zero. Ignore on read.
%
% char whpad1[6]; % Reserved. Write zero. Ignore on read.
% short whVersion; % Write 1. Ignore on read.
% char bname[MAX_WAVE_NAME5+1]; % Name of wave plus trailing null.
% long whpad2; % Reserved. Write zero. Ignore on read.
% struct DataFolder **dFolder; % Used in memory only. Write zero. Ignore on read.
%
% % Dimensioning info. [0] == rows, [1] == cols etc
% long nDim[MAXDIMS]; % Number of of items in a dimension -- 0 means no data.
% double sfA[MAXDIMS]; % Index value for element e of dimension d = sfA[d]*e + sfB[d].
% double sfB[MAXDIMS];
%
% % SI units
% char dataUnits[MAX_UNIT_CHARS+1]; % Natural data units go here - null if none.
% char dimUnits[MAXDIMS][MAX_UNIT_CHARS+1]; % Natural dimension units go here - null if none.
%
% short fsValid; % TRUE if full scale values have meaning.
% short whpad3; % Reserved. Write zero. Ignore on read.
% double topFullScale,botFullScale; % The max and max full scale value for wave.
%
% Handle dataEUnits; % Used in memory only. Write zero. Ignore on read.
% Handle dimEUnits[MAXDIMS]; % Used in memory only. Write zero. Ignore on read.
% Handle dimLabels[MAXDIMS]; % Used in memory only. Write zero. Ignore on read.
%
% Handle waveNoteH; % Used in memory only. Write zero. Ignore on read.
%
% unsigned char platform; % 0=unspecified, 1=Macintosh, 2=Windows; Added for Igor Pro 5.5.
% unsigned char spare[3];
%
% long whUnused[13]; % Reserved. Write zero. Ignore on read.
%
% long vRefNum, dirID; % Used in memory only. Write zero. Ignore on read.
%
% % The following stuff is considered private to Igor.
%
% short aModified; % Used in memory only. Write zero. Ignore on read.
% short wModified; % Used in memory only. Write zero. Ignore on read.
% short swModified; % Used in memory only. Write zero. Ignore on read.
%
% char useBits; % Used in memory only. Write zero. Ignore on read.
% char kindBits; % Reserved. Write zero. Ignore on read.
% void **formula; % Used in memory only. Write zero. Ignore on read.
% long depID; % Used in memory only. Write zero. Ignore on read.
%
% short whpad4; % Reserved. Write zero. Ignore on read.
% short srcFldr; % Used in memory only. Write zero. Ignore on read.
% Handle fileName; % Used in memory only. Write zero. Ignore on read.
%
% long **sIndices; % Used in memory only. Write zero. Ignore on read.
%
% float wData[1]; % The start of the array of data. Must be 64 bit aligned.
% };
function s=local_char(S);
% null-terminated string -> char string
S = S(:).';
S = S(S~=0);
s=char(S);
Sergio Santos
I know this is very old.
Just install R and R studio and install the Igor R pachage when you have R installed.
install.packages("IgorR")
This will install the R package. Then turn them into a good format.
As an example check the R code to unpack here. In my example I have data from an atomic force microscope and I unpack it as txt files.
https://github.com/TMMFProject/TMMFProject-1/blob/master/UNPACKIGOR_2015APRIL/UnPackIgor.R