8 Questions 17 Answers 0 Followers
Questions related from Azzeddine Reghais
I would like to use correlation analysis to check the co-occurrence of HMs in the sediments and visualize the results using a grid showing the connections between the different HMs within the...
21 March 2023 2,014 0 View
How can I add the robust confidence ellipses of 97.5% on the variation diagrams (XY ilr-Transformed) in the robcompositions ,or composition packages? Best Azzeddine
08 January 2023 7,986 1 View
I calculated the heavy metal index (HPI) for forty-five groundwater samples and got some very high values (HPI > 2500). Although I rechecked the calculation method and found that everything was...
07 March 2022 5,720 15 View
Several methods have been suggested in many studies One of these solutions is to use the guidelines Which of these guidelines are used and can they be provide (Name , Lien, PDF...) to...
04 March 2022 1,543 10 View
Does the slope factor (SF) and reference dose values (RFD) for different metals remain constant when assessing the risks of heavy metals in water, soil, or sediments? If it is different according...
04 March 2022 8,711 2 View
I've already installed and loaded the package in Rstudio, but I'd like to learn how to use the package from the database loading to the output results. my sincere gratitude.
06 February 2022 1,900 3 View
Hello, I'm currently using the Phreeqc modeling program. How to enter a data set of solutions at once.?
25 January 2022 7,058 2 View
Dears, I am new to using PHREEQC However, I use r programming Are there resources on how to use PHREEQC using R language? Please Help Best
25 January 2022 192 4 View
