Model lines
Model lines
Optional curves/lines
Starting Composition
Decay constants
This Shiny app integrates the R package
To use this app, follow the instructions below:
1. Copy and paste your data (from excel spreadsheet for example) into the first 5 columns of the table on the left. Sometimes the header for the table won't show up correctly, just click anywhere in the table! For optimal viewing, you may need to change your web browser zoom level using keyboard shortcuts CTRL & plus '+' or CTRL & minus '-'
2. You will see that the values automatically update for model age, μ, κ and the initial Pb isotope ratios (teal colored text). Just like an excel spreadsheet, you can insert/delete rows by right clicking on them, you can select and copy data etc.
3. You can download this data as a .xlsx file by cliking 'Download data' below the table. Sheet 1 will be the main data table and Sheet 2 will have the model parameters used to produce the data.
3. Click through the four different plots by clicking the above tabs. Change axes limits by entering a numeric value or using the up/down arrows. There are various check boxes that can be turned on or off, and some allow a numeric value. You can click 'Download plot as pdf' on each plot to save a copy.
4. You can change the model parameters in the 'Model parameters' tab, but be careful of changing these values (especially the decay constants). You can always reset the values back to default (Stacey and Kramers 1975 2nd stage model) by clicking 'Reset values to default' in the top right corner.
For detailed information on the R package, app or Pb isotopes, please read our EarthArXiv Preprint (currently under review). Please also use this citation if you use the package or app in your own publications:
Armistead, S. E., Eglington, B. M., & Pehrsson, S. J. (2021). PbIso: an R package and web app for calculating and plotting Pb isotope data. EarthArXiv doi.org/10.31223/X56G84
For feedback or questions, please contact: sheree.armistead@utas.edu.au
PbIso
into a user-friendly interface.
For full functionality and flexibility, we recommend downloading the package and using it within R.
To do this, run the following lines of code in R:
install.packages(devtools)
devtools::install_github("shereearmistead/PbIso")
library(PbIso)
To use this app, follow the instructions below:
1. Copy and paste your data (from excel spreadsheet for example) into the first 5 columns of the table on the left. Sometimes the header for the table won't show up correctly, just click anywhere in the table! For optimal viewing, you may need to change your web browser zoom level using keyboard shortcuts CTRL & plus '+' or CTRL & minus '-'
2. You will see that the values automatically update for model age, μ, κ and the initial Pb isotope ratios (teal colored text). Just like an excel spreadsheet, you can insert/delete rows by right clicking on them, you can select and copy data etc.
3. You can download this data as a .xlsx file by cliking 'Download data' below the table. Sheet 1 will be the main data table and Sheet 2 will have the model parameters used to produce the data.
3. Click through the four different plots by clicking the above tabs. Change axes limits by entering a numeric value or using the up/down arrows. There are various check boxes that can be turned on or off, and some allow a numeric value. You can click 'Download plot as pdf' on each plot to save a copy.
4. You can change the model parameters in the 'Model parameters' tab, but be careful of changing these values (especially the decay constants). You can always reset the values back to default (Stacey and Kramers 1975 2nd stage model) by clicking 'Reset values to default' in the top right corner.
For detailed information on the R package, app or Pb isotopes, please read our EarthArXiv Preprint (currently under review). Please also use this citation if you use the package or app in your own publications:
Armistead, S. E., Eglington, B. M., & Pehrsson, S. J. (2021). PbIso: an R package and web app for calculating and plotting Pb isotope data. EarthArXiv doi.org/10.31223/X56G84
For feedback or questions, please contact: sheree.armistead@utas.edu.au