Hi Josh
On 29/07/13 19:47, Joshua Lampe wrote:
In the Data widget, you cannot tell Veusz what you would like to do with a
data column, until you have chosen a plot type. Then the appropriate options
are available. It would make Veusz easier to use if the error bars could be
similarly assigned. That is: choose your plot, choose your x-data, choose your
y-data, choose your y-data error. If you made it possible to reclassify
columns of data as error, it would make error bar plotting more intuitive. It
would also simplify data importing.
With the new 1.18 release, where you give a dataset name for plotting,
you can give an expression
ds1, ds2
where ds1 are your data and ds2 are your errors (or ds1,ds2,ds3 for
asymmetric errors).
Another way is to compose a new dataset made up of two others. You can
create a new dataset based on an expression with the create dialog box.
Enter "ds1" as the "value" option, and "ds2_data" as the symmetric error
option.
I could add separate error bar properties for widgets, but this would
expand the number of options a lot.
I could have an option to list error columns in the CSV import dialog. I
don't know how useful this might be. It might be nice to have a CSV
import wizard which allow the user to exclude, add columns, etc, but
this is a lot of work.
Jeremy
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