Column titles need to be included during a Cut, Copy or Clear -
- Hold down the shift key when selecting the appropriate command.
Creating a template of the data window through the use of the Stationary Pad feature of System
- Customize the data window to suit your needs (column titles, formats, etc.).
- Save the data window.
- Select the file and choose Get Info from the File menu.
- Check the Stationary Pad option. This will allow you to open a copy of this data window.
The Integer format supports numbers within the range of -2147483647 to 2147483647. Numbers
outside this range will not be displayed correctly.
- To display these numbers as integers, enter the values in a Double format, change the Format
to Fixed, and set the Decimals to 0.
If you wish to save text files from another application in a format that KaleidaGraph will
recognize and open directly, contact Technical Support in order to obtain a copy of the binary data format.
Return to top
It is possible to display text above the markers through the use of Text error bars.
Log axes on Column plots - KaleidaGraph uses 1 as a baseline when plotting bars on a log scale
(log 1 = 0). Data values larger than 1 will be displayed as usual. Values between 0 and 1 will be plotted
from the baseline down to the value, so as to appear in the opposite direction. To have all bars facing the
same direction, create the plot as a Scatter plot. In Plot Style, select bar as your Marker and use the Marker
Size field to control the size of the bar.
The Stack Histogram plot does not have any options that enable you to plot the bars in the
order they appear on the data sheet. The bars are always plotted according to their size, with the largest
counts at the bottom.
- The only way to have all counts in the same order is to use the Bin Data command and plot
the resulting data as a Stack Column plot. These plots always plot based on the order in the data window.
Return to top
The table command can be used in Formula Entry to interpolate values between data columns.
If you have X,Y data in columns 0 and 1, and a new set of X data in column 2, you can use the table command
to find interpolated Y values at the second set of X points. The command would be c3=table(c2, c0, c1).
Difference formula - The following formula can be used to calculate the difference between
the current cell and the preceding cell, storing the results in a new column. Note: Before executing the
formula, select all of the data except for the first row.
- c1=c0 - cell(index() - 1, 0)
To calculate a statistic on blocks of data (ex: mean of every 5 rows) use the following formula:
- cell(index() * n + offset, ocol) = mean([index() * (n-1):index() * (n-1) + (n-1), icol:
where n = the number of rows in the block, the offset is the number of rows down where the final
result will be stored, ocol is the output column number and icol is the input column number.
Invert formula - The following formula can be used to invert the data in c0 and place it in
- c1 = cell(n - index(), 0)
where n is the total number of rows in the data window. Any
empty rows at the bottom of the original data will be placed at the top of the output column. These can
be selected and deleted.
If you wish to take an input column and have every X rows stored in a separate column, use
the following formula:
- cell(index(), int(index()/n) + (col + 1)) = cell(index(), col)
where n is the number
of rows in each group and col is the output column number. Using this formula, the data will be in the
same row as the original data.
- cell(index() mod n, int(index()/n) + (col + 1)) = cell(index(), col)
where n is the
number of rows in each group and col is the output column number. Using this formula, the data will be
placed at the top of the data window.
Return to top
Multiple independent variables or including column numbers as part of the curve fit definition.
- In order to do this, you need to use the table command. For example, suppose you plotted
c0 as X and c1 as Y and wished to use the values in c2 as part of the curve fit definition (possibly as
a second independent variable). Anywhere you want to use c2 in the definition, replace it with table(m0,
c0, c2). To use the table command, the X column must be sorted and there cannot be any duplicate values.
If you want to display all of the data points, but only fit a certain section of the curve:
- Copy the data you want to fit and paste it into a new column. Then create a Line plot,
using both Y columns of data. Hide the new variable by choosing No Markers and a Line Style of None in
Plot Style (Plot Menu). Apply the curve fit to this variable. The curve fit will be displayed, but the
second set of points won't be displayed.
- An alternate method (as reported by one of our users) is to mask the unwanted cells in
the original column. Create the plot and apply the curve fit to the remaining data. Go back to the data
window and unmask the cells. Go back to the plot, choose Plot Style, and click OK. The plot will be redrawn
to include the unmasked cells, but the curve fit will not be updated.
A way to fit two different equations is to combine them in a single curve fit definition using
the if-else operator. If you had two functions such that:
y = F1(x) for x < x1
y = F2(x) for x >= x1,
you could enter the following type of definition in the Define dialog:
((x < x1) ? F1(x) : 0) + ((x >= x1) ? F2(x) : 0)
To force a linear fit to go through a particular Y value at X = 0 you have to use the general
fit. For example if you wanted to have Y=4 at X=0 you would use the equation:
Setting default font and font size for the curve fit equation table in v3.08 or later of KaleidaGraph:
- Choose the text tool from the tool palette and double-click on the table.
- Choose the proper font and size. a
- Select Set Defaults from the File menu. Place a check in the box next to Equation Labels
and remove the check next to Standard Labels.
- Click OK. You will not see the changes take effect until the next curve fit is applied.
- When you quit KaleidaGraph, save changes to the Style so that these changes will be remembered
the next time you launch KaleidaGraph.
Return to top
|홈 | VersaTerm | KaleidaGraph | 기술지원 | 데모 다운로드 | 주문
필사이언스(주) 경기도 고양시 일산동구 백석동 1141-2 유니테크빌 825호
Tel 031-905-7754 Fax 031-905-7724
Copyright ⓒ 2000~2008 Phil Science, Inc. All rights reserved.