Posts Tagged ‘ Uncategorized ’

Invited sessions at ISF2017

February 27, 2017
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Invited sessions at ISF2017

We are still looking for a few more invited sessions for the International Symposium on Forecasting, to be held in Cairns, Australia, 25-28 June 2017. An invited session consists of 3 or 4 talks around a specific, forecasting theme. You are allowed to be one of the speakers in a session you organize (although it […]

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Point/Counterpoint: Should a programming language accept misspelled keywords?

February 27, 2017
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Point/Counterpoint: Should a programming language accept misspelled keywords?

Longtime SAS programmers know that the SAS DATA step and SAS procedures are very tolerant of typographical errors. You can misspell most keywords and SAS will "guess" what you mean. For example, if you mistype "PROC" as "PRC," SAS will run the program but write a warning to the log: [...] The post Point/Counterpoint: Should a programming language accept misspelled keywords? appeared first on The DO Loop.

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Quantile estimates and the difference of medians in SAS

February 22, 2017
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Quantile estimates and the difference of medians in SAS

Sometimes SAS programmers ask about how to analyze quantiles with SAS. Common questions include: How can I compute 95% confidence intervals for a median in SAS? How can I test whether the medians of two independent samples are significantly different? How can I repeat the previous analyses with other percentiles, [...] The post Quantile estimates and the difference of medians in SAS appeared first on The DO Loop.

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The distribution of colors for plain M&M candies

February 20, 2017
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The distribution of colors for plain M&M candies

Many introductory courses in probability and statistics encourage students to collect and analyze real data. A popular experiment in categorical data analysis is to give students a bag of M&M® candies and ask them to estimate the proportion of colors in the population from the sample data. In some classes, [...] The post The distribution of colors for plain M&M candies appeared first on The DO Loop.

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Simultaneous confidence intervals for multinomial proportions

February 15, 2017
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Simultaneous confidence intervals for multinomial proportions

A categorical response variable can take on k different values. If you have a random sample from a multinomial response, the sample proportions estimate the proportion of each category in the population. This article describes how to construct simultaneous confidence intervals for the proportions as described in the 1997 paper [...] The post Simultaneous confidence intervals for multinomial proportions appeared first on The DO Loop.

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Forecasters: bring your family to Cairns

February 15, 2017
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Forecasters: bring your family to Cairns

We know Australia is a long way to come for many forecasters, so we are making it easy for you to bring your families along to the International Symposium on Forecasting and have a vacation at the same time. During the International Symposium on Forecasting, there will be a social program organized for family and […]

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The Australian Macro Database

February 15, 2017
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The Australian Macro Database

AusMacroData is a new website that encourages and facilitates the use of quantitative, publicly available Australian macroeconomic data.  The Australian Macro Database hosted at ausmacrodata.org provides a user-friendly front end for searching among over 40000 economic variables and is loosely based on similar international sites such as the Federal Reserve Economic Database (FRED).  In total, […]

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An easy way to run thousands of regressions in SAS

February 13, 2017
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An easy way to run thousands of regressions in SAS

A common question on SAS discussion forums is how to repeat an analysis multiple times. Most programmers know that the most efficient way to analyze one model across many subsets of the data (perhaps each country or each state) is to sort the data and use a BY statement to [...] The post An easy way to run thousands of regressions in SAS appeared first on The DO Loop.

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You Can See in Numbers

February 8, 2017
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You Can See in Numbers

‘We are extremely sad to announce that Professor Hans Rosling died this morning. Hans suffered from a pancreatic cancer which was diagnosed one year ago. He passed away early Tuesday morning, February 7, 2017, surrounded by his family in Uppsala, Sweden.’ Anna R. Rönnlund & Ola Rosling, Co-founders of Gapminder. He died aged 68. In 2009, the … Continue reading You Can See in Numbers

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A quick introduction to Apache Spark for statisticians

February 8, 2017
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A quick introduction to Apache Spark for statisticians

Introduction Apache Spark is a Scala library for analysing "big data". It can be used for analysing huge (internet-scale) datasets distributed across large clusters of machines. The analysis can be anything from the computation of simple descriptive statistics associated with the datasets, through to rather sophisticated machine learning pipelines involving data pre-processing, transformation, nonlinear model … Continue reading A quick introduction to Apache Spark for statisticians

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