José Augusto Solís BenitesUniversidad Peruana Cayetano Heredia | UPCH · Laboratorio de Investigación y Desarrollo de Ciencia y Tecnología
José Augusto Solís Benites
Master in Science
About
9
Publications
800
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Citations
Introduction
My current interest is to how to fluctuate the fish populations off the central coast of Peru during Termination 1(LGM to Holocene). how do deoxygenation and low productivity affect fish distribution? It was estimated for fish remains (scales and vertebrae) preserved.
Skills and Expertise
Publications
Publications (9)
Reconstructing precipitation and wind from the geological record could help to understand the potential changes in precipitation and wind dynamics in response to climate change in Peru. The last deglaciation offers natural experimental conditions to test precipitation and wind dynamics response to high latitude forcing. While considerable research...
CalibR is an R-script used for radiocarbon calibration, which aims to achieve the same outcome as Calib 8.02, a radiocarbon calibration software. CalibR uses the IntCal20 & Marine20 calibration curves to calibrate radiocarbon ages and can produce probability density functions (PDFs) and cumulative distribution functions (CDFs) for calibrated ages.
Reconstructing precipitation and wind from the geological
record could help researchers understand the potential changes in precipitation and
wind dynamics in response to climate change in Peru. The last deglaciation
offers natural experimental conditions to test the response of precipitation and wind
dynamics to high-latitude forcing. While consid...
It is about estimating of radiocarbon effect from Peru to Chile during Holocene according to the new calibrated curve (MARINE20) for marine sediments. . Attached below link to the project on GitHub.
https://github.com/jasb3110/Radiocarbon-reservoir
Fish populations of the Humboldt Current System exhibit contractions or
expansions in their distribution in response to the intensity of the coastal upwelling
and oxygen deficiency at different time scales. However, the future impact of global
warming on fish populations is uncertain. The objective of the present research is
to reconstruct the...
This work is a paper review on both fish scale and fish debris (bones
and spines) methodology for paleocological assessments off Peru coast.
Currently, they have been used to reconstruct fish population of important
species like anchovy, sardine, hake, horse mackerel, mackerel and other
Peruvian fishes. We discuss the forcing mechnisms to gener...
Questions
Question (1)
I have got a data of times series(14 continuos variable and 1 categorical variable). I find out to use a Friedman test. but I know that It just has used in Rank and/or Likert data. I am not sure how to include interaction effects between variables. Therefore, I had a clue which could be possible multiply and/or divide for indepent variables so that, it will able to test interaction effects between indepent variables.
For now, I used a friedman.test() and posthoc.friedman.conover.tes() of PMCMR on R-package to test ANOVA test and Post-hoc test. Another hand, I will use AovSum() of FactormineR on R-package or gam() it is Generalized Additive Models of mgcv on R-package.
PD. I tried to use a many R-package however, It doesn´t work with my data.
Pseudocode:
data.aov=ANOVA(depent variable ~ indepent variable 1*indepent variable 2
*indepent variable 3*indepent variable 4*...indepent variable [n-1], data)
summary(data.aov)
