a node to calculate probability

KNIME Analytics Platform
1

Is there a Knime-node which is able to calculate the entries in a row of a table??/

for example I count my filed with value counter then how can I to calculate the probability of them???

pleas let me know

Thank you

2

If you use the Value Counter node to count how many times each entry or value occurs (frequency), you can use a simple Math Formula node to calculate their relative frequency (note that probability is formally something different). You can use the formula:

$count$/COL_SUM($count$)

Cheers,
Marco.

3

thanks a lot for your reply. it helps me a lot

I resolve it with Javasnippt node

but I think that this is so better.

4

Hi mah,

you can also use the groupby node. Group on your first column and use any column in the aggregation tab and select Percent.

Best, Iris