Struct SampleTable 

pub struct SampleTable { /* private fields */ }

A table of sample values, with timestamps indexing rows and channels indexing columns. Values are stored in column-major order.

Implementations

impl SampleTable

pub fn new( timestamps: Vec<u64>, channels: Vec<ChannelStreamDescriptor>, values: Vec<ValueSeries>, ) -> Result<Self, SampleTableError>

Create a sample table from a list of timestamps, channels, and value series.

Each ValueSeries corresponds to the index-matched channel in channels, and must have the same length as timestamps.

pub fn from_single_channel( timestamp: u64, channel: ChannelStreamDescriptor, value: Value, ) -> Self

Create a sample table with a single timestamp and single values for a single channel.

pub fn from_multiple_channels( timestamp: u64, channels: Vec<ChannelStreamDescriptor>, values: Vec<Value>, ) -> Result<Self, SampleTableError>

Create a sample table with a single timestamp and single values for multiple channels.

pub fn iter_rows<'values>( &'values self, ) -> Result<impl Iterator<Item = RowRef<'values>>, SampleTableError>

Lazily-evaluated iterator over the rows of the sample table.

pub fn channels(&self) -> &[ChannelStreamDescriptor]

The channels in the sample table.

pub fn timestamps(&self) -> &[u64]

The timestamps in the sample table.

pub fn columns(&self) -> &[ValueSeries]

The columns in the sample table.

pub fn get_channel_values( &self, channel: &ChannelStreamDescriptor, ) -> Option<&ValueSeries>

The values for a given channel.

pub fn get_timestamped_channel_values( &self, channel: &ChannelStreamDescriptor, ) -> Option<impl Iterator<Item = (u64, ValueRef<'_>)>>

The values for a given channel and timestamp.

pub fn num_points(&self) -> usize

The number of points in the stream.

pub fn scale_channel( &mut self, channel: &ChannelStreamDescriptor, f: impl FnMut(ValueRef<'_>) -> Result<f64, String>, ) -> Result<(), SampleTableError>

Apply a scaling function to a channel’s values in place.

An error is returned if the channel specified is not present.

If any individual scaling operation fails, no further values are computed and the error is returned.

Trait Implementations

impl Clone for SampleTable

fn clone(&self) -> SampleTable

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SampleTable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SampleTable

fn default() -> SampleTable

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SampleTable

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SampleTable

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.