DASH v4.0.0 Beta 4

Summary

Various small improvements and fixes in preparation for the final beta testing.

Details

Improvements

1. Update BaySPLINE commit
   Updated the commit hash in PSM.bayspline. The updated forward model code (external of DASH) includes functionality to test proxy seasonality.

2. Improve linear PSM
   Update PSM.linear to implement the model using matrix algebra, rather than element-wise multiplication.

3. dash.doc
   Updated to accept single-quote input strings (in addition to double-quote strings).

4. dash.ensembleFilter.Rcovariance
   Updated to accept logical indices (in addition to linear indices).

5. stateVector.variableIndices
   The previous code used variable names (rather than indices) to test for duplicates. In some cases, this would require users to use double-quote input strings (single-quote strings would fail). The updated function permits both single-quote and double-quote strings.

Fixes

1. ensembleMetadata constructor
   Fixed a bug in the ensembleMetadata constructor that could prevent metadata from building when reference indices had a spacing larger than 1.

2. PSM.download cleanup
   Fixed a bug in PSM.download that could sometimes cause a successfully downloaded PSM to be deleted.

3. Calibration ratio for empty proxy networks
   Fixed a bug in kalmanFilter.run that could cause it to crash when attempting to calculate calibration ratios for an empty proxy network.

4. dash.math.gaspariCohn2D
   Fixed a typo in a variable name that would cause the function to crash.

5. ensembleMetadata.rows
   Updated the method to return NaN metadata when a user requests an allowed dimension, but none of the input variables have the dimension. Previously, the function would crash for this (admittedly rare) case.