replaced old functions

[fiorentinosbarazzino]

Proposed changes

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If it fixes a bug or resolves a feature request, be sure to link to that issue.

Types of changes

What types of changes does your code introduce to FSDA?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

[codecov]

Codecov Report

Merging #51 (6014f9c) into master (39edb45) will decrease coverage by 0.23%.
The diff coverage is 16.66%.

@@            Coverage Diff             @@
##           master      #51      +/-   ##
==========================================
- Coverage   50.50%   50.26%   -0.24%     
==========================================
  Files         312      313       +1     
  Lines       44970    45077     +107     
==========================================
- Hits        22712    22658      -54     
- Misses      22258    22419     +161     

Impacted Files	Coverage Δ
clustering/tclustIC.m	90.17% <0.00%> (ø)
clustering/tclustICgpcm.m	45.36% <0.00%> (ø)
examples/GUIcorr.m	59.59% <ø> (ø)
graphics/tclustICplotGPCM.m	35.93% <0.00%> (ø)
graphics/resfwdplot.m	27.99% <100.00%> (-0.39%)	⬇️
utilities/cascade.m	90.47% <0.00%> (-4.77%)	⬇️
utilities_help/publishFS.m	75.30% <0.00%> (-3.91%)	⬇️
utilities/position.m	69.52% <0.00%> (-2.05%)	⬇️
regression/mdpdReda.m	84.03% <0.00%> (-0.85%)	⬇️
... and 4 more

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