System SourceMeter® Instrument Reference Manual Section 7:
2600BS-901-01 Rev. B / May 2013 7-183
If n equals zero (0), all other attributes are nil. If n equals 1, the stddev attribute is nil because the standard
deviation of a sample size of 1 is undefined.
The min and max entries each have the attributes defined in the following table.
Attribute Description
String indicating the function that was measured for the reading (current, voltage,
ohms or watts)
The full-scale range value for the measurement range used when the measurement
The reading value
String indicating the source function at the time of the measurement (current or
voltage)
String indicating the state of the source (off or on)
Full-scale range value for the source range used when the measurement was made
If bufferVar.collectsourcevalues is enabled, the sourced value in effect at
Status value for the reading; the status value is a floating-point number that encodes
the status value into a floating-point value
If bufferVar.collecttimestamps is enabled, the timestamp, in seconds,
between when the reading was acquired and when the first reading in the buffer was
acquired; adding this value to the base timestamp will give the actual time the
Also see
smuX.buffer.recalculatestats() (on page 7-183)
smuX.buffer.recalculatestats()
This function recalculates the specified reading buffer's statistics.
Type TSP-Link accessible
Affected by Where saved Default value
Function Yes
Usage
smuX.buffer.recalculatestats(bufferVar)
Source-measure unit (SMU) channel (for example,
smua.buffer.recalculatestats() specifies SMU channel A)
The reading buffer to process
Details
This function causes the SMU to regenerate the reading buffer statistics about the specified reading buffer.
Because the SMU automatically updates reading buffer statistics when data is added to the reading buffer, this
function is generally not needed. When the reading buffer is configured to wrap around and overwrite older data
with new data, the buffer statistics will include the data that was overwritten. Use this function to recalculate the
statistics that include only the data that is presently stored in the buffer.
Also see
bufferVar.fillmode (on page 7-22)
smuX.buffer.getstats() (on page 7-182)