analyzeSGP(sgp_object, state=NULL, years=NULL, content_areas=NULL, grades=NULL, sgp.percentiles=TRUE, sgp.projections=TRUE, sgp.projections.lagged=TRUE, sgp.percentiles.baseline=TRUE, sgp.projections.baseline=TRUE, sgp.projections.lagged.baseline=TRUE, sgp.percentiles.baseline.max.order=3, sgp.percentiles.srs.baseline.max.order=3, sgp.projections.baseline.max.order=3, sgp.projections.lagged.baseline.max.order=3, sgp.projections.max.forward.progression.years=3, sgp.projections.max.forward.progression.grade=NULL, sgp.projections.use.only.complete.matrices=NULL, sgp.minimum.default.panel.years=NULL, sgp.use.my.coefficient.matrices=NULL, sgp.use.my.sgp_object.baseline.coefficient.matrices=NULL, sgp.test.cohort.size=NULL, return.sgp.test.results=FALSE, simulate.sgps=TRUE, calculate.simex=NULL, calculate.simex.baseline=NULL, calculate.simex.srs.baseline=NULL, calculate.srs=NULL, calculate.srs.baseline=NULL, goodness.of.fit.print=TRUE, sgp.config=NULL, sgp.config.drop.nonsequential.grade.progression.variables=TRUE, sgp.baseline.panel.years=NULL, sgp.baseline.config=NULL, trim.sgp.config=TRUE, parallel.config=NULL, verbose.output=FALSE, print.other.gp=NULL, sgp.projections.projection.unit="YEAR", get.cohort.data.info=FALSE, sgp.sqlite=FALSE, sgp.percentiles.equated=NULL, sgp.percentiles.equating.method=NULL, sgp.percentiles.calculate.sgps=TRUE, SGPt=NULL, fix.duplicates=NULL, ...)

sgp_object | An object of class |
---|---|

state | Acronym indicating state associated with the data for access to embedded knot and boundaries, cutscores, CSEMs, and other state related assessment data. |

years | A vector indicating year(s) in which to produce student growth percentiles and/or student growth projections/trajectories. If missing the function will use the data to infer the year(s) based upon the assumption of having at least three years of panel data for analyses. |

content_areas | A vector indicating content area(s) in which to produce student growth percentiles and/or student growth projections/trajectories. If left missing the function will use the data to infer the content area(s) available for analyses. |

grades | A vector indicating grades for which to calculate student growth percentiles and/or student growth projections/trajectories. If left missing the function will use the data to infer all the grade progressions for student growth percentile and student growth projections/trajectories analyses. |

sgp.percentiles | Boolean variable indicating whether to calculate student growth percentiles. Defaults to TRUE. |

sgp.projections | Boolean variable indicating whether to calculate student growth projections. Defaults to TRUE. |

sgp.projections.lagged | Boolean variable indicating whether to calculate lagged student growth projections often used for growth to standard analyses. Defaults to TRUE. |

sgp.percentiles.baseline | Boolean variable indicating whether to calculate baseline student growth percentiles and/or coefficient matrices. Defaults to TRUE. |

sgp.projections.baseline | Boolean variable indicating whether to calculate baseline student growth projections. Defaults to TRUE. |

sgp.projections.lagged.baseline | Boolean variable indicating whether to calculate lagged baseline student growth projections. Defaults to TRUE. |

sgp.percentiles.baseline.max.order | Integer indicating the maximum order to calculate baseline student growth percentiles (regardless of maximum coefficient matrix order). Also the max order of baseline coefficient matrices to be calculated if requested. Default is 3. To utilize the maximum matrix order, set to NULL. |

sgp.percentiles.srs.baseline.max.order | Integer indicating the maximum order to calculate baseline, stratified random sample, student growth percentiles (regardless of maximum coefficient matrix order). Also the max order of baseline SRS coefficient matrices to be calculated if requested. Default is 3. To utilize the maximum matrix order, set to NULL. |

sgp.projections.baseline.max.order | Integer indicating the maximum order to calculate baseline student growth projections (regardless of maximum coefficient matrix order). Default is 3. To utilize the maximum matrix order, set to NULL. |

sgp.projections.lagged.baseline.max.order | Integer indicating the maximum order to calculate lagged baseline student growth projections (regardless of maximum coefficient matrix order). Default is 3. To utilize the maximum matrix order, set to NULL. |

sgp.projections.max.forward.progression.years | Integer indicating the maximum number of years forward that cohort based projections will be established for. Default is 3 years. |

sgp.projections.max.forward.progression.grade | Integer indicating the maximum grade forward that cohort based projections will be established for. Default is NULL, the highest grade. |

sgp.projections.use.only.complete.matrices | Boolean argument (defaults to TRUE/NULL) indicating whether to produce projections only when a complete set of coefficient matrices is available. |

sgp.minimum.default.panel.years | Integer indicating the minimum number of panels years to use for default sgp analyses. Default value is NULL (converted to 3) years of data. |

sgp.use.my.coefficient.matrices | Argument, defaults to NULL, indicating whether to use coefficient matrices embedded in argument supplied to 'sgp_object' to calculate student growth percentiles. |

sgp.use.my.sgp_object.baseline.coefficient.matrices | Argument, defaults to NULL (FALSE), indicating whether to utilize baseline matrices embedded in supplied |

sgp.test.cohort.size | Integer indicating the maximum number of students sampled from the full cohort to use in the calculation of student growth percentiles. Intended to be used as a test of the desired analyses to be run. The default, NULL, uses no restrictions (no tests are performed, and analyses use the entire cohort of students). |

return.sgp.test.results | Boolean variable passed to |

simulate.sgps | Boolean variable indicating whether to simulate SGP values for students based on test-specific Conditional Standard Errors of Measurement (CSEM). Test CSEM data must be available for simulation and included in |

calculate.simex | A character state acronym or list including state/csem variable, csem.data.vnames, csem.loss.hoss, simulation.iterations, lambda and extrapolation method.
Returns both SIMEX adjusted SGP ( |

calculate.simex.baseline | A character state acronym or list including state/csem variable, csem.data.vnames, csem.loss.hoss, simulation.iterations, lambda and extrapolation method. Defaults to NULL, no simex calculations performed.
Alternatively, setting the argument to TRUE uses the same defaults as above along with |

calculate.simex.srs.baseline | A character state acronym or list including state/csem variable, csem.data.vnames, csem.loss.hoss, simulation.iterations, lambda and extrapolation method. Defaults to NULL, no simex calculations performed for stratified random sample (SRS).
Alternatively, setting the argument to TRUE uses the same defaults as above along with |

calculate.srs | A character state acronym or list including [FILL IN LATER]. Creates a longitudinal data set based upon a stratified random sample of variables and proportions for the United States (default) or provided by the user. The argument defaults to NULL, Alternatively, setting the argument to TRUE uses the defaults specified above. |

calculate.srs.baseline | A character state acronym or list including [FILL IN LATER]. Calculates SGPs based upon previosly established coefficient matrices derived from a stratified random sample of data. Defaults to NULL, no stratified random sample SGPs are calculated. Alternatively, setting the argument to TRUE uses the defaults specified above. |

goodness.of.fit.print | Boolean variable indicating whether to print out Goodness of Fit figures as PDF into a directory labeled Goodness of Fit. Defaults to TRUE. |

sgp.config | If |

sgp.config.drop.nonsequential.grade.progression.variables | Boolean variable (defaults to TRUE) indicating whether non-sequential grade progression variables should be dropped when
sgp.config is processed. For example, if a grade progression of c(3,4,6) is provided, the data configuration will assume (default is TRUE) that data for a missing year needs to be dropped prior
to applying |

sgp.baseline.panel.years | A vector of years to be used for baseline coefficient matrix calculation. Default is to use most recent five years of data. |

sgp.baseline.config | A list containing three vectors: |

trim.sgp.config | A Boolean variable indicating whether the arguments |

parallel.config | A named list with, at a minimum, two elements indicating 1) the BACKEND package to be used for parallel computation and 2) the WORKERS list to specify the number of processors to be used in each major analysis. The BACKEND element can be set = to TYPE is a third element of the The WORKERS list must contain, at a minimum, a single number of processors (nodes) desired or available. If WORKERS is specified in this manner, then the same number of processors will be used for each analysis type (sgp.percentiles, sgp.projections, ... sgp.projections.lagged.baseline). Alternatively, the user may specify the numbers of processors used for each analysis. This allows for better memory management in systems that do not have enough RAM available per core. The choice of the number of cores is a balance between the number of processors available, the amount of RAM a system has and the size of the data (sgp_object). Each system will be different and will require some tailoring. One rule of thumb used by the authors is to allow for 4GB of memory per core used for running large state data. The SGP Demonstration (and data that size) requires more like 1-2GB per core. As an example, PERCENTILES=4 and PROJECTIONS=2 might be used on a quad core machine with 4 GB of RAM. This will use all 4 cores available for the sgp.percentiles analysis and 2 cores for the sgp.projections analysis (which requires more memory than available). The WORKERS list accepts these elements: PERCENTILES, PROJECTIONS (for both cohort and baseline referenced projections), LAGGED_PROJECTIONS (for both cohort and baseline referenced lagged projections), BASELINE_MATRICES (used to produce the baseline coefficient matrices when not available in SGPstateData - very computationally intensive), BASELINE_PERCENTILES (SGP calculation only when baseline coefficient matrices have already been produced and are available - NOT very computationally intensive). Alternatively, the name of an external CLUSTER.OBJECT (PSOCK or MPI) set up by the user outside of the function can be used. Example use cases are provided below. |

verbose.output | A Boolean argument (defaults to FALSE) indicating whether the function should output verbose diagnostic messages. |

print.other.gp | A Boolean argument (defaults to FALSE) indicating whether the function should output SGP of all orders. |

sgp.projections.projection.unit | A character vector argument indicating whether the studentGrowthProjections function should produce projections relative to future grades or future years. Options are "YEAR" and "GRADE", with default being "YEAR". |

get.cohort.data.info | A Boolean argument (defaults to FALSE) indicating whether a summary of all cohorts to be submitted to the |

sgp.sqlite | A Boolean argument (defaults to FALSE) indicating whether a SQLite database file of the essential SGP data should be created from the |

sgp.percentiles.equated | A Boolean argument (defaults to NULL/FALSE) indicating whether equating should be used on the most recent year of test data provided. Equating allows for student growth projections to be calculated in across assessment transitions where the scale for the assessment changes. |

sgp.percentiles.equating.method | A character vector (defaults to NULL/'equipercentile') indicating the type of equating method to use. Options include any combination of 'identity', 'mean', 'linear', and 'equipercentile'. |

sgp.percentiles.calculate.sgps | A Boolean argument (defaults to TRUE) indicating whether to calculate percentiles in calls to studentGrowthPercentiles function. Setting to FALSE would indicate desire to calculate only coefficient matrices and no percentiles. |

SGPt | An argument supplied to implement time-dependent SGP analyses (SGPt). Default is NULL giving standard, non-time dependent argument. If set to TRUE, the function assumes the variables 'TIME' and 'TIME_LAG' are supplied as part of the panel.data. To specify other names, supply a list of the form: list(TIME='my_time_name', TIME_LAG='my_time_lag_name'), substituting your variable names. |

fix.duplicates | Argument to control how duplicate records based upon the key of VALID_CASE, CONTENT_AREA, YEAR, and ID are dealt with.
If set to 'KEEP.ALL', the function tries to fix the duplicate individual records by adding a '_DUP_***' suffix to the duplicate ID
before running |

... | Arguments to be passed to |

Function returns a list containing the long data set in the `@Data`

slot as a `data.table`

keyed using `VALID_CASE`

, `CONTENT_AREA`

,
`YEAR`

, `ID`

and the student growth percentile and/or student growth projection/trajectory results in the `SGP`

slot.

not_run({ ## analyzeSGP is Step 2 of 5 of abcSGP Demonstration_SGP <- sgpData_LONG Demonstration_SGP <- prepareSGP(Demonstration_SGP) Demonstration_SGP <- analyzeSGP(Demonstration_SGP) ## Or (explicitly pass state argument) Demonstration_SGP <- prepareSGP(sgpData_LONG) Demonstration_SGP <- analyzeSGP(Demonstration_SGP, state="DEMO") ### ### Example uses of the sgp.config argument ### # Use only 3 years of Data, for grades 3 to 6 # and only perform analyses for most recent year (2012) my.custom.config <- list( MATHEMATICS.2013_2014 = list( sgp.content.areas=rep("MATHEMATICS", 3), # Note, must be same length as sgp.panel.years sgp.panel.years=c('2011_2012', '2012_2013', '2013_2014'), sgp.grade.sequences=list(3:4, 3:5, 4:6)), READING.2013_2014 = list( sgp.content.areas=rep("READING", 3), sgp.panel.years=c('2011_2012', '2012_2013', '2013_2014'), sgp.grade.sequences=list(3:4, 3:5, 4:6))) Demonstration_SGP <- prepareSGP(sgpData_LONG) Demonstration_SGP <- analyzeSGP(Demonstration_SGP, sgp.config=my.custom.config, sgp.percentiles.baseline = FALSE, sgp.projections.baseline = FALSE, sgp.projections.lagged.baseline = FALSE, simulate.sgps=FALSE) ## Another example sgp.config list: # Use different CONTENT_AREA priors, and only 1 year of prior data my.custom.config <- list( MATHEMATICS.2013_2014.READ_PRIOR = list( sgp.content.areas=c("READING", "MATHEMATICS"), sgp.panel.years=c('2012_2013', '2013_2014'), sgp.grade.sequences=list(3:4, 4:5, 5:6)), READING.2013_2014.MATH_PRIOR = list( sgp.content.areas=c("MATHEMATICS", "READING"), sgp.panel.years=c('2012_2013', '2013_2014'), sgp.grade.sequences=list(3:4, 4:5, 5:6))) ## An example showing multiple priors within a single year Demonstration_SGP <- prepareSGP(sgpData_LONG) DEMO.config <- list( READING.2012_2013 = list( sgp.content.areas=c("MATHEMATICS", "READING", "MATHEMATICS", "READING", "READING"), sgp.panel.years=c('2010_2011', '2010_2011', '2011_2012', '2011_2012', '2012_2013'), sgp.grade.sequences=list(c(3,3,4,4,5), c(4,4,5,5,6), c(5,5,6,6,7), c(6,6,7,7,8))), MATHEMATICS.2012_2013 = list( sgp.content.areas=c("READING", "MATHEMATICS", "READING", "MATHEMATICS", "MATHEMATICS"), sgp.panel.years=c('2010_2011', '2010_2011', '2011_2012', '2011_2012', '2012_2013'), sgp.grade.sequences=list(c(3,3,4,4,5), c(4,4,5,5,6), c(5,5,6,6,7), c(6,6,7,7,8)))) Demonstration_SGP <- analyzeSGP( Demonstration_SGP, sgp.config=DEMO.config, sgp.projections=FALSE, sgp.projections.lagged=FALSE, sgp.percentiles.baseline=FALSE, sgp.projections.baseline=FALSE, sgp.projections.lagged.baseline=FALSE, sgp.config.drop.nonsequential.grade.progression.variables=FALSE) ### ### Example uses of the parallel.config argument ### ## Windows users must use a snow socket cluster: # possibly a quad core machine with low RAM Memory # 4 workers for percentiles, 2 workers for projections. # Note the PSOCK type cluster is used for single machines. Demonstration_SGP <- prepareSGP(sgpData_LONG) Demonstration_SGP <- analyzeSGP(Demonstration_SGP, parallel.config=list( BACKEND="PARALLEL", TYPE="PSOCK", WORKERS=list(PERCENTILES=4, PROJECTIONS=2, LAGGED_PROJECTIONS=2, BASELINE_PERCENTILES=4)) ## New parallel package - only available with R 2.13 or newer # Note there are up to 16 workers, and MPI is used, # suggesting this example is for a HPC cluster, possibly Windows OS. ... parallel.config=list( BACKEND="PARALLEL", TYPE="MPI", WORKERS=list(PERCENTILES=16, PROJECTIONS=8, LAGGED_PROJECTIONS=6, BASELINE_PERCENTILES=12)) ... ## FOREACH use cases: ... parallel.config=list( BACKEND="FOREACH", TYPE="doParallel", WORKERS=3) ... # NOTE: This list of parallel.config specifications is NOT exhaustive. # See examples in analyzeSGP documentation for some others.0 ### ### Advanced Example: restrict years, recalculate baseline SGP ### coefficient matrices, and use parallel processing ### # Remove existing DEMO baseline coefficient matrices from # the SGPstateData object so that new ones will be computed. SGPstateData$DEMO$Baseline_splineMatrix <- NULL # set up a customized sgp.config list . . . # set up a customized sgp.baseline.config list . . . # to be completed })#> Error: <text>:98:9: unexpected symbol #> 97: # suggesting this example is for a HPC cluster, possibly Windows OS. #> 98: ... #> ^