There are times when the relationship between dependent and independent variables is not linear. In these cases it is useful to include polynomial terms to help explain the variance in our dependent variable. The polynomial terms are treated as main effects in our model, so an estimate and p-value will be calculated, and from these results we can determine if the curvature in the data that we see is statistically significant. If we use the Multiple Regression module, the only way to include squared terms (and any order or interaction terms) is to build them in separate variable columns in the data and then include them in the regression. However, if we... Read More »
There are times when the relationship between dependent and independent variables is not linear. In these cases it is useful to include polynomial terms to help explain the variance in our dependent variable. The polynomial terms are treated as main effects in our model, so an estimate and p-value will be calculated, and from these results we can determine if the curvature in the data that we see is statistically significant. If we use the Multiple Regression module, the only way to include squared terms (and any order or interaction terms) is to build them in separate variable columns in the data and then include them in the regression. However, if we...
Read More »
Mr. André Corrêa d'Almeida recently sat down to talk with StatSoft about STATISTICA and how it has helped him in his career. André is an Economist with a Master’s of Science in Project Management. He is currently finalizing his doctorate degree in Development and Public Policy in Sub-Saharan Africa. In short, he is an economist, entrepreneur and social researcher who designs, develops and assesses projects to create value for communities. He works with private, public, academic and non-profit sectors. He has academic and management level experience with projects carried out in China, Europe, the United States and Africa... Read More »
Mr. André Corrêa d'Almeida recently sat down to talk with StatSoft about STATISTICA and how it has helped him in his career. André is an Economist with a Master’s of Science in Project Management. He is currently finalizing his doctorate degree in Development and Public Policy in Sub-Saharan Africa. In short, he is an economist, entrepreneur and social researcher who designs, develops and assesses projects to create value for communities. He works with private, public, academic and non-profit sectors. He has academic and management level experience with projects carried out in China, Europe, the United States and Africa...
Each year, Rexer Analytics (www.rexeranalytics.com) surveys data mining professionals and publishes a report of its findings. To the best of our knowledge, it is the only independent published survey of data mining professionals. The findings for the 2009 survey have been released and it contains important findings, including the perception of data mining professionals about their use of STATISTICA . STATISTICA is the most popular software in the academic community and the second most popular software among the industry (commercial) users of data mining... Read More »
Each year, Rexer Analytics (www.rexeranalytics.com) surveys data mining professionals and publishes a report of its findings. To the best of our knowledge, it is the only independent published survey of data mining professionals. The findings for the 2009 survey have been released and it contains important findings, including the perception of data mining professionals about their use of STATISTICA .
STATISTICA is the most popular software in the academic community and the second most popular software among the industry (commercial) users of data mining...
I recently came across Hans Rosling's 2007 TED talk on poverty and statistics. (Video is embedded below.) The talk is entertaining and thought provoking. Dr Rosling founded a non-profit organization called GapMinder. Their goal is to be: “fact tank that promotes a fact based world view" Gapminder is a good source for free Read More »
I recently came across Hans Rosling's 2007 TED talk on poverty and statistics. (Video is embedded below.) The talk is entertaining and thought provoking.
Dr Rosling founded a non-profit organization called GapMinder. Their goal is to be:
“fact tank that promotes a fact based world view"
Gapminder is a good source for free
STATISTICA 6 was released it in 2001. It is not compatible with Windows Vista or Windows 7. You will need to upgrade to STATISTICA 10. StatSoft is offering an upgrade discount for past customers. And you may find the new features in STATISTICA 7, STATISTICA 8, STATISTICA 9 and STATISTICA10 to be useful for your tasks. Read More »
STATISTICA 6 was released it in 2001.
It is not compatible with Windows Vista or Windows 7. You will need to upgrade to STATISTICA 10.
StatSoft is offering an upgrade discount for past customers. And you may find the new features in STATISTICA 7, STATISTICA 8, STATISTICA 9 and STATISTICA10 to be useful for your tasks.
A customer asked recently how to create a random subset. And I thought this would be a good topic for a blog. Let us pretend... We want to develop a credit scoring model Read More »
A customer asked recently how to create a random subset. And I thought this would be a good topic for a blog.
Let us pretend...
We want to develop a credit scoring model
We recently received a question from an Electronic Statistics Textbook visitor. The visitor asked: Read More »
We recently received a question from an Electronic Statistics Textbook visitor. The visitor asked: