Plotting options (stacked plots)

LuisK

I was wondering if there are resources where I can explore the plotting options within the iolite environment such as creating a stacked plot in a DRS similar to the one used in the "U-Pb Geochronology" DRS to e.g., visualize the fit line of a down-hole fractionation correction curve to the raw isotopic ratio of all my samples from the selected reference material group.

The documentation has an entry on stacked plots but is indicated as "Coming soon", so I thought of asking here if there is any documentation available for the commands. Thanks!

Joe

LuisK

There are three ways I can think:

Using the Visualization->Stacked Plot tool.
Using the Visualization->Custom Plot tool.
Using python to make a plot.

Before going into detail about any of these, can you explain what you're trying to plot/achieve? Are you comfortable writing small scripts with python? Option 3 is the most flexible, but most difficult. Option's 1 and 2 are less difficult, but may not be exactly what you're looking for.

All the best,

LuisK

Joe Thank you for your answer.

I am currently experimenting with writing a script to correct for down-hole fractionation for my specific case and was trying to add the option to add a stacked plot of the down-hole data of my uncorrected isotopic ratio in my selected reference material. I followed the existing examples for Rb-Sr and U-Pb down-hole correction DRS and adjusted it to my needs. To check the fit of the curve plotted through the compiled downhole data I thought of plotting the raw ratios in a stacked view.

I tried the first two options already and they do technically do what I am looking for, but sometimes I have spikes in my data which enlarge the axis limits too much to see the small trend in my data. If there is a way to manually rescale the axis in the stacked plot tool, this would be one solution to my question.

I would say I am confident writing small scripts in python as I have already adjusted the given examples and written other code before, but was unsure what the best way is to do it. Thanks!

Luis

Joe

LuisK

In the stacked plot, you can change the scale of the axes manually by double clicking on them.

If you're following our U-Pb DRS python example, you can set the range of the y-axis by doing something like:

# Import QCPRange to make new ranges
from iolite.ui import QCPRange

# Get the current range (as a QCPRange)
current_range = plot.left().range

# Set a new range using lower and upper variables you calculated:
plot.left().range = QCPRange(lower, upper)

# Replot to show new range:
plot.replot()

All the best,

LuisK

Joe
Thanks! I was not aware that resizing the axis limits in stacked plots was possible like that. That solved my problem! Cheers