Sapphires that are clear and white enough to be faceted into gems are rare since most sapphires have at least a slight tinge of color like blue or yellow," explains Schatner. "Therefore, many white sapphires you see have been heat-treated to remove the slight tinges of other hues and to also improve their clarity."Īccording to Schatner, heat treatment is the oldest and most stable form of gem treatment and is very common in the industry it doesn’t damage the stone and offers lasting results. Like colored sapphires, white sapphires have been found in India, Sri Lanka, Thailand, Madagascar, Pakistan, East Africa, and Montana. Troubleshooting and how to find help by Gergana on Coding Club, November 15, 2016: A tutorial to show people how to spot errors, get familiar with common errors and how to get help.Troubleshoot in R by shelloren on RPubs, January 10, 2019: Some common errors and troubleshooting tips for beginners. Stack Overflow: A platform for people to ask technical questions and find answers to them.In the end, there are some practices to test your knowledge. Deploy your Shiny applications on the Web in minutes.Ĭross Validated: A Q& A forum for questions related to statistics, machine learning, data analysis, data visualization and data mining.Bioconductor Support: Bioconductor provides software written in R to analyze high-throughput genomic data and this forum provides support for its users.RStudio Community: A Q&A forum for R users to ask R- or RStudio-related questions.Questions on this forum are not limited to R. Questions on this forum are not limited to R. Biostatistics Center at School of Public Health: Provide statistics support to JHU faculty, staff and SPH graduate students.Ī server or know how to configure a firewall to deploy and manage your applications in the cloud. Biostatistics, Epidemiology And Data management (BEAD) core: Provides statistics and data management support for JHU faculty.They have walk-in biostatistics consultations available online for several popular statistical software, such as R, SAS and STATA. Statistics support for Social Sciences and Behavioral Data by Bryce Corrigan, SNF Agora Institute at JHU.Sign up with their online intake form to start the process. You can schedule an appointment with him using this form.
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