Logic

The <input> and <output> tags of every module on this page additionally accept the attributes common to all analysis modules.

ifadded in 1.3

The if module is the phyphox equivalent to the if-statement of a programming language. It takes two inputs a and b and will behave differently depending on the relation of the last values found there. By changing the attributes less, equal or greater, you can decide whether you are looking for a < b, a = b or a > b, respectively. If the relation is true, the if-module will write the data from the input true to the output, otherwise it will write the data from the input false. If you enable multiple attributes, the input true is used if any of them is fulfilled, so if you enable less and equal, a <= b will write the true input to the output, while a > b writes the false input.

Since version 1.4 (phyphox 1.0.6) you may set an input to be of the type empty. Effectively, this does not change the output as nothing is written, but can make sense in combination with setting the output to clear. In this case, the if module behaves in a somewhat special way as it only clears its output if a matching input is connected. For example, if you set the true input to empty, do not connect the false input and set the output to clear, it will only clear the output if the condition is true, but leave it alone otherwise. This can be used as a reset condition.

<if equal="BOOLEAN" greater="BOOLEAN" less="BOOLEAN">
    <input as="a">BUFFER</input>
    <input as="b">BUFFER</input>
    <input as="true">BUFFER</input>
    <input as="false">BUFFER</input>
    <output as="result">BUFFER</output>
</if>

Attributes

equal

Take the true branch when a equals b.

optional, boolean, default: false

greater

Take the true branch when a is greater than b.

optional, boolean, default: false

less

Take the true branch when a is less than b.

optional, boolean, default: false

Inputs

as	Count	as required	Allowed types
a	exactly one	no	buffer, value
b	exactly one	no	buffer, value
true	optional	no	buffer, value, empty
false	optional	no	buffer, value, empty

Outputs

as	Count	as required
result	exactly one	no