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AMHumphries
UK
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 Posted - 09/13/2006 : 08:31:27 AM
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Origin Version (Select Help-->About Origin): Pro 7.5 SR4
Operating System: Windows XP
Hi folks, sorry to be a nuisance, I'm still getting to grips with LabTalk. I've checked through the documentation and posts on this forum but haven't found anything that quite answers this query.
I have a worksheet containing 10 columns (any number of which, sequentially, will contain data), and each column has the type Y. This is because it is length data, and the X is given by the number of rows (the count data). Within a LabTalk script I want to Bin this data into a new worksheet from which I can plot graphs, etc. I want to be able to select multiple columns to Bin at the same time, which I am not sure I can do with a standard worksheet -s statement. I want the end result to be a Binning worksheet containing PopulationStats and Counts (as per usual, Sum and Perc are unnecessary but I don't mind if they are there).
I have tried using run.section(WKS,2DBinning) but that gives an error, lookign for an X column as well as the Y... however as stated before, I want the X to be the number of rows each column has containing data. I have also looked through the WKS.ogs script at the Binning section for an idea of how it works, but this has got me no close to solving any of these problems. I also want to specify the Bin size (default 7) without a complicated dialog.
Any help in these matters would be greatly appreciated!
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Deanna
China
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Posted - 09/14/2006 : 02:22:19 AM
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Hi, AMHumphries. run.section(WKS,2DBinning) cannot be applied on multiple columns. I wonder if you are still working on the particle size distribution project. In that case, I don't think you need a 2D binning. You just need a frequency count. If you do need 2D binning, we can modify the 2D binning section in the ogs so that it can be applied on multiple sheets and operate without bringing up a dialog.
Deanna
OriginLab GZ Office |
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AMHumphries
UK
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Posted - 09/14/2006 : 07:45:32 AM
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Yes it is still the particle size distribution project. If I can get a population count in "Bins" of 7 with the count for each, from frequency count with which to plot my graph, that'd be great. Is there a built-in frequency count in Origin LabTalk, and if so will it be able to handle multiple column selections as input?
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Hideo Fujii
USA
1582 Posts |
Posted - 09/14/2006 : 10:02:30 AM
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Just for anyone's information as a reference, there is a LabTalk function (for 1D frequency counting):
Histogram(dataset,min,max)
--Hideo Fujii
OriginLab
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Deanna
China
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Posted - 09/15/2006 : 01:10:10 AM
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Yep, the Histogram(dataset, inc, min, max) function will be very useful.
Here is a piece of script, which counts the frequency for every selected column and plots the accumulative frequency on a graph page. Before running it, the columns should be selected. Maybe it is not exactly what you want. But I hope that it can examplify one way of using the histogram function.
nCol = wks.c2 - wks.c1 + 1; //Number of columns selected
iLeft=wks.c1;
%w = %h; //Save the input worksheet name
window -t p; //Create a new graph page
%L= %h; //Save the name of the graph page
window -t w; //Create a new worksheet
%m=%h; //Save the worksheet name
wks.col1.type=1; //Set the first column as X
BinSize = 7; //Set the bining size
for (ii=0; ii<nCol; ii++) //Loop over all the selected columns
{
worksheet -a 2; //Add 2 columns
%a = %(%w, iLeft + $(ii)); //Dataset name of an input column
sum(%a); //Find max and min
BinMax = sum.max;
BinMin = sum.min;
IndexCol = $(ii) * 2 + 1;
col($(IndexCol)) = Histogram(%a, BinSize, BinMin - BinSize, BinMax);
//Cummulative frequency
%b=%(%m, $(IndexCol+1)) ;
col($(IndexCol+1))= sum(col($(IndexCol))) ;
col($(IndexCol+1)) /= sum.total;
//Add a data plot
window -o %L {layer.include (%b, 200) ; };
};
//Hide the histogram data
window -h 1;
//Rescale the graph page
window -o %L {layer -a;};
Deanna
OriginLab GZ Office |
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Binning in LabTalk