The following node is available in the Open Source KNIME predictive analytics and data mining platform version 2.7.1. Discover over 1000 other nodes, as well as enterprise functionality at
http://knime.com.
Statistics
This node calculates statistical moments such as minimum, maximum, mean,
standard deviation, variance, median, overall sum, number of missing
values and row count across all numeric columns, and counts all nominal values
together with their occurrences. The dialog offers two options for
choosing the median and/or nominal values calculations:
Dialog Options
- Compute median values
- Select this option if for all
numeric columns the medians are computed. Note, this
computation might be expensive, since it requires to sort all column
independently to find the values that divides the distribution into two
halves of the same number of values.
- Column filter
- Filter columns for counting all possible
values.
- Nominal values
- Adjusts the number of counts for both,
top number of frequent and infrequent occurrences of categorical
values per column (displayed in the node view!).
- Nominal values in output
- Adjusts the maximum number of
possible values per column in the nominal output table.
Ports
Input Ports
0 |
Table from which to compute statistics.
|
Output Ports
0 |
Table with numeric values.
|
1 |
Table with all nominal values and their counts.
|
Views
- Statistics View
-
Displays all statistic moments (for all numeric columns) and nominal
values (for all categorical columns).
This node is contained in KNIME Base Nodes
provided by KNIME GmbH, Konstanz, Germany.