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Write/Store Correlation Matrix to an Excel... (1)

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This process demonstrates how to write/store/export the correlation matrix of the "Correlation Matrix" operator to an Excel file. One need to generate a Report with the "Generate Report" operator and export the Report to an Excel file.

Created: 2010-05-19

OpenTox Handle Task (8)

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Waits for a task to be finished and returns resulting URI

Created: 2010-05-18

Discard Attribute with More than x% Missin... (1)

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This process loops over all attributes and calculates the fraction of missings for each attribute. If this fration is larger than the fraction defined in the first "Set Macro" operator (macro: max_unknown), the attribute will be removed from the example set.

Created: 2010-05-15

Convert Nominal to Binominal to Numerical (1)

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This is a standard preprocessing subprocess taking nominal (categorical) attributes and introduces binominal dummy attributes before those are transformed to numerical which can be then used by learning schemes like SVM or Logistic Regression.

Created: 2010-05-15

Pivoting (1)

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This process shows the basics of Pivoting. A data set with three columns is loaded and partially generated. Afterwards, the data is rotated and missings are replaced by zero.

Created: 2010-05-15

Evaluating Multiple Models with Looped X-V... (1)

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This process shows how multiple different models can be evaluated with cross validation runs. This allows for the comparison of, for example, three prediction model types (e.g., ANN, SVM and DT) all at once under a x-fold cross validation. Having said that, the process actually performs the same cross validation several times using each time a different modeling scheme. It makes use of loops, collections, subprocess selection and macros and is therefore also an interesting showcase for more ...

Created: 2010-05-15

Setting an attribute value in a specific E... (1)

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This process will first generate an artificial dataset and tag it with ids. Then a Filter Examples Operator is used to get a dataset with exactly one example identified by it's id. Then a value is set in this example. Since the change in the data will be reflected in all views of the example set, a simply copy is passed by to the process' output. If you take a look at the attributes of the example with id 5, you will find the 12 there.

Created: 2010-05-14

Correct Attribute Type to Binominal (1)

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This process will first generate some artificial data to show a commonly known problem: Some attributes have only two values, but are not correctly stored as Binominal, instead RapidMiner recognizes them as nominal. In order to use them for some special operators, we have to change this to binominal. We can achieve this by using the Nominal to Binominal operator with the the parameter transform_binominals switched off. Please take a look at the data before and after the Nominal to Binominal o...

Created: 2010-05-14

EntrezGeneId_to_GOFunction (1)

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The workflow takes a list of Entrez gene ids and returns the corresponding GO function definitions. Example value: 1306 486 4712 108 9912 7639 23786

Created: 2010-05-13 | Last updated: 2010-05-13

Credits: Franck Tanoh

BLAST workflow (1)

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You can get three BLAST results against DDBJ, swiss-prot and PDB by using accession number of DDBJ.

Created: 2010-05-13 | Last updated: 2010-05-13

Credits: wabi