## Corr – Binary Options göstəriciləri

Displays ordered correlation coefficients

The following options can be used in the PROC CORR statement. They are listed in alphabetical order.

calculates and prints CronbachвЂ™s coefficient alpha. PROC CORR computes separate coefficients using raw and standardized values (scaling the variables to a unit variance of 1). For each VAR statement variable, PROC CORR computes the correlation between the variable and the total of the remaining variables. It also computes CronbachвЂ™s coefficient alpha by using only the remaining variables.

If a WITH statement is specified, the ALPHA option is invalid. When you specify the ALPHA option, the Pearson correlations will also be displayed. If you specify the OUTP= option, the output data set also contains observations with CronbachвЂ™s coefficient alpha. If you use the PARTIAL statement, PROC CORR calculates CronbachвЂ™s coefficient alpha for partialled variables. See the section Partial Correlation for details.

prints the highest correlation coefficients for each variable, . Correlations are ordered from highest to lowest in absolute value. Otherwise, PROC CORR prints correlations in a rectangular table, using the variable names as row and column labels.

If you specify the HOEFFDING option, PROC CORR displays the statistics in order from highest to lowest.

displays the variance and covariance matrix. When you specify the COV option, the Pearson correlations will also be displayed. If you specify the OUTP= option, the output data set also contains the covariance matrix with the corresponding _TYPE_ variable value ‘COV.’ If you use the PARTIAL statement, PROC CORR computes a partial covariance matrix.

displays a table of the corrected sums of squares and crossproducts. When you specify the CSSCP option, the Pearson correlations will also be displayed. If you specify the OUTP= option, the output data set also contains a CSSCP matrix with the corresponding _TYPE_ variable value ‘CSSCP.’ If you use a PARTIAL statement, PROC CORR prints both an unpartial and a partial CSSCP matrix, and the output data set contains a partial CSSCP matrix.

names the SAS data set to be analyzed by PROC CORR. By default, the procedure uses the most recently created SAS data set.

excludes observations with nonpositive weight values from the analysis. By default, PROC CORR treats observations with negative weights like those with zero weights and counts them in the total number of observations.

requests confidence limits and -values under a specified null hypothesis, , for correlation coefficients by using FisherвЂ™s transformation. These correlations include the Pearson correlations and Spearman correlations.

The following fisher-options are available:

specifies the level of the confidence limits for the correlation, . The value of the ALPHA= option must be between 0 and 1, and the default is ALPHA=0.05.

BIASADJ=YESВ |В NO

specifies whether or not the bias adjustment is used in constructing confidence limits. The BIASADJ=YES option also produces a new correlation estimate that uses the bias adjustment. By default, BIASADJ=YES.

specifies the value in the null hypothesis , where . By default, RHO0=0.

TYPE=LOWERВ |В UPPERВ |В TWOSIDED

specifies the type of confidence limits. The TYPE=LOWER option requests a lower confidence limit from the lower alternative , the TYPE=UPPER option requests an upper confidence limit from the upper alternative , and the default TYPE=TWOSIDED option requests two-sided confidence limits from the two-sided alternative .

requests a table of HoeffdingвЂ™s statistics. This statistic is 30 times larger than the usual definition and scales the range between 0.5 and 1 so that large positive values indicate dependence. The HOEFFDING option is invalid if a WEIGHT or PARTIAL statement is used.

requests a table of KendallвЂ™s tau-b coefficients based on the number of concordant and discordant pairs of observations. KendallвЂ™s tau-b ranges from 1 to 1.

The KENDALL option is invalid if a WEIGHT statement is used. If you use a PARTIAL statement, probability values for KendallвЂ™s partial tau-b are not available.

suppresses displaying of Pearson correlations. If you specify the OUTP= option, the data set type remains CORR. To change the data set type to COV, CSSCP, or SSCP, use the TYPE= data set option.

excludes observations with missing values from the analysis. Otherwise, PROC CORR computes correlation statistics by using all of the nonmissing pairs of variables. Using the NOMISS option is computationally more efficient.

suppresses all displayed output, which also includes output produced with ODS Graphics. Use the NOPRINT option if you want to create an output data set only.

suppresses displaying the probabilities associated with each correlation coefficient.

suppresses printing simple descriptive statistics for each variable. However, if you request an output data set, the output data set still contains simple descriptive statistics for the variables.

creates an output data set containing HoeffdingвЂ™s statistics. The contents of the output data set are similar to those of the OUTP= data set. When you specify the OUTH= option, the HoeffdingвЂ™s statistics will be displayed.

creates an output data set containing Kendall correlation statistics. The contents of the output data set are similar to those of the OUTP= data set. When you specify the OUTK= option, the Kendall correlation statistics will be displayed.

OUTP= output-data-set OUT= output-data-set

creates an output data set containing Pearson correlation statistics. This data set also includes means, standard deviations, and the number of observations. The value of the _TYPE_ variable is ‘CORR.’ When you specify the OUTP= option, the Pearson correlations will also be displayed. If you specify the ALPHA option, the output data set also contains six observations with CronbachвЂ™s coefficient alpha.

creates an output data set containing Spearman correlation coefficients. The contents of the output data set are similar to those of the OUTP= data set. When you specify the OUTS= option, the Spearman correlation coefficients will be displayed.

requests a table of Pearson product-moment correlations. The correlations range from 1 to 1. If you do not specify the HOEFFDING, KENDALL, SPEARMAN, OUTH=, OUTK=, or OUTS= option, the CORR procedure produces Pearson product-moment correlations by default. Otherwise, you must specify the PEARSON, ALPHA, COV, CSSCP, SSCP, or OUT= option for Pearson correlations. Also, if a scatter plot or a scatter plot matrix is requested, the Pearson correlations will be displayed.

PLOTS plot-request > PLOTS plot-request plot-request > ) >

requests statistical graphics via the Output Delivery System (ODS). To request these graphs, you must specify the ODS GRAPHICS ON statement in addition to the following options in the PROC CORR statement. For more information about the ODS GRAPHICS statement, see Chapter 21, Statistical Graphics Using ODS ( SAS/STAT 9.22 User’s Guide ).

The global plot option ONLY suppresses the default plots, and only plots specifically requested are displayed. The plot request options include the following:

produces all appropriate plots.

requests a scatter plot matrix for variables. That is, the procedure displays a symmetric matrix plot with variables in the VAR list if a WITH statement is not specified. Otherwise, the procedure displays a rectangular matrix plot with the WITH variables appearing down the side and the VAR variables appearing across the top.

suppresses all plots.

requests scatter plots for pairs of variables. That is, the procedure displays a scatter plot for each applicable pair of distinct variables from the VAR list if a WITH statement is not specified. Otherwise, the procedure displays a scatter plot for each applicable pair of variables, one from the WITH list and the other from the VAR list.

By default, PLOTS=MATRIX, a scatter plot matrix for all variables is displayed. When a scatter plot or a scatter plot matrix is requested, the Pearson correlations will also be displayed.

The available matrix-options are as follows:

displays histograms of variables in the VAR list in the symmetric matrix plot.

specifies the maximum number of variables in the VAR list to be displayed in the matrix plot, where . The NVAR=ALL option uses all variables in the VAR list. By default, NVAR=5.

specifies the maximum number of variables in the WITH list to be displayed in the matrix plot, where . The NWITH=ALL option uses all variables in the WITH list. By default, NWITH=5.

The available scatter-options are as follows:

specifies the values for the confidence or prediction ellipses to be displayed in the scatter plots, where . For each value specified, a ( ) confidence or prediction ellipse is created. By default, .

ELLIPSE=PREDICTIONВ |В CONFIDENCEВ |В NONE

requests prediction ellipses for new observations (ELLIPSE=PREDICTION), confidence ellipses for the mean (ELLIPSE=CONFIDENCE), or no ellipses (ELLIPSE=NONE) to be created in the scatter plots. By default, ELLIPSE=PREDICTION.

suppresses the default inset of summary information for the scatter plot. The inset table contains the number of observations (Observations) and correlation.

specifies the maximum number of variables in the VAR list to be displayed in the plots, where . The NVAR=ALL option uses all variables in the VAR list. By default, NVAR=5.

specifies the maximum number of variables in the WITH list to be displayed in the plots, where . The NWITH=ALL option uses all variables in the WITH list. By default, NWITH=5.

displays the ordered correlation coefficients for each variable. Correlations are ordered from highest to lowest in absolute value. If you specify the HOEFFDING option, the statistics are displayed in order from highest to lowest.

specifies the criterion for determining the singularity of a variable if you use a PARTIAL statement. A variable is considered singular if its corresponding diagonal element after Cholesky decomposition has a value less than p times the original unpartialled value of that variable. The default value is 1E 8. The range of is between 0 and 1.

requests a table of Spearman correlation coefficients based on the ranks of the variables. The correlations range from 1 to 1. If you specify a WEIGHT statement, the SPEARMAN option is invalid.

displays a table of the sums of squares and crossproducts. When you specify the SSCP option, the Pearson correlations will also be displayed. If you specify the OUTP= option, the output data set contains a SSCP matrix and the corresponding _TYPE_ variable value is ‘SSCP.’ If you use a PARTIAL statement, the unpartial SSCP matrix is displayed, and the output data set does not contain an SSCP matrix.

VARDEF=DFВ |В NВ |В WDFВ |В WEIGHTВ |В WGT

specifies the variance divisor in the calculation of variances and covariances. The default is VARDEF=DF.

Table 2.2 displays available values and associated divisors for the VARDEF= option, where n is the number of nonmissing observations, k is the number of variables specified in the PARTIAL statement, and is the weight associated with the th nonmissing observation.

## Corr – Binary Options göstəriciləri

Provides picture and explanation of Metatrader indicator CHF_CORR_EUR.mq4

OSP-JRN-INCORROUT Logical file journaling indicator not corr

StockFetcher provides fast, effective stock pattern matchings. … Parameters: Symbol Period Indicator: Usage: corr(symbol,period,indicator) Description

|The EVAL-CORR operation assigns data and null-indicators from the | corresponding subfields of the source data structure to the subfields of the | target data structure.

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## The CORR Procedure

### PROC CORR Statement

Table 2.1 summarizes the options available in the PROC CORR statement.

Table 2.1: Summary of PROC CORR Options

Specifies the input data set

Specifies the output data set with HoeffdingвЂ™s statistics

Specifies the output data set with Kendall correlation statistics

Specifies the output data set with Pearson correlation statistics

Specifies the output data set with polychoric correlation statistics

Specifies the output data set with polyserial correlation statistics

Specifies the output data set with Spearman correlation statistics

Excludes observations with nonpositive weight values from the analysis

Requests correlation statistics using FisherвЂ™s z transformation

Requests HoeffdingвЂ™s measure of dependence, D

Requests KendallвЂ™s tau-b

Excludes observations with missing analysis values from the analysis

Requests Pearson product-moment correlation

Requests polychoric correlation

Requests polyserial correlation

Requests Spearman rank-order correlation

Pearson Correlation Statistics

Computes CronbachвЂ™s coefficient alpha

Computes corrected sums of squares and crossproducts

Computes correlation statistics based on FisherвЂ™s z transformation

Specifies the singularity criterion

Computes sums of squares and crossproducts

Specifies the divisor for variance calculations

ODS Output Graphics

Displays the scatter plot matrix

Displays scatter plots for pairs of variables

Displays the specified number of ordered correlation coefficients

Suppresses Pearson correlations

Suppresses all printed output

Suppresses p -values

Suppresses descriptive statistics

Displays ordered correlation coefficients

The following options can be used in the PROC CORR statement. They are listed in alphabetical order.

calculates and prints CronbachвЂ™s coefficient alpha. PROC CORR computes separate coefficients using raw and standardized values (scaling the variables to a unit variance of 1). For each VAR statement variable, PROC CORR computes the correlation between the variable and the total of the remaining variables. It also computes CronbachвЂ™s coefficient alpha by using only the remaining variables.

If a WITH statement is specified, the ALPHA option is invalid. When you specify the ALPHA option, the Pearson correlations will also be displayed. If you specify the OUTP= option, the output data set also contains observations with CronbachвЂ™s coefficient alpha. If you use the PARTIAL statement, PROC CORR calculates CronbachвЂ™s coefficient alpha for partialled variables. See the section Partial Correlation for details.

prints the n highest correlation coefficients for each variable, . Correlations are ordered from highest to lowest in absolute value. Otherwise, PROC CORR prints correlations in a rectangular table, using the variable names as row and column labels.

If you specify the HOEFFDING option, PROC CORR displays the statistics in order from highest to lowest.

displays the variance and covariance matrix. When you specify the COV option, the Pearson correlations will also be displayed. If you specify the OUTP= option, the output data set also contains the covariance matrix with the corresponding _TYPE_ variable value ‘COV.’ If you use the PARTIAL statement, PROC CORR computes a partial covariance matrix.

displays a table of the corrected sums of squares and crossproducts. When you specify the CSSCP option, the Pearson correlations will also be displayed. If you specify the OUTP= option, the output data set also contains a CSSCP matrix with the corresponding _TYPE_ variable value ‘CSSCP.’ If you use a PARTIAL statement, PROC CORR prints both an unpartial and a partial CSSCP matrix, and the output data set contains a partial CSSCP matrix.

names the SAS data set to be analyzed by PROC CORR. By default, the procedure uses the most recently created SAS data set.

excludes observations with nonpositive weight values from the analysis. By default, PROC CORR treats observations with negative weights like those with zero weights and counts them in the total number of observations.

requests confidence limits and p -values under a specified null hypothesis, , for correlation coefficients by using FisherвЂ™s z transformation. These correlations include the Pearson correlations and Spearman correlations.

The following fisher-options are available:

specifies the level of the confidence limits for the correlation, . The value of the ALPHA= option must be between 0 and 1, and the default is ALPHA=0.05.

BIASADJ=YESВ |В NO

specifies whether or not the bias adjustment is used in constructing confidence limits. The BIASADJ=YES option also produces a new correlation estimate that uses the bias adjustment. By default, BIASADJ=YES.

specifies the value in the null hypothesis , where . By default, RHO0=0.

TYPE=LOWERВ |В UPPERВ |В TWOSIDED

specifies the type of confidence limits. The TYPE=LOWER option requests a lower confidence limit for the test of the one-sided hypothesis against the alternative hypothesis \rho _<0>$” style=”vertical-align:-3px” src=”http://support.sas.com/documentation/cdl/en/procstat/67528/HTML/default/images/procstat_corr0010.png” height=”13″ width=”69″> , the TYPE=UPPER option requests an upper confidence limit for the test of the one-sided hypothesis against the alternative hypothesis , and the default TYPE=TWOSIDED option requests two-sided confidence limits for the test of the hypothesis .

requests a table of HoeffdingвЂ™s D statistics. This D statistic is 30 times larger than the usual definition and scales the range between вЂ“0.5 and 1 so that large positive values indicate dependence. The HOEFFDING option is invalid if a WEIGHT or PARTIAL statement is used.

requests a table of KendallвЂ™s tau-b coefficients based on the number of concordant and discordant pairs of observations. KendallвЂ™s tau-b ranges from вЂ“1 to 1.

The KENDALL option is invalid if a WEIGHT statement is used. If you use a PARTIAL statement, probability values for KendallвЂ™s partial tau-b are not available.

suppresses displaying of Pearson correlations. If you specify the OUTP= option, the data set type remains CORR. To change the data set type to COV, CSSCP, or SSCP, use the TYPE= data set option.

excludes observations with missing values from the analysis. Otherwise, PROC CORR computes correlation statistics by using all of the nonmissing pairs of variables. Using the NOMISS option is computationally more efficient.

suppresses all displayed output, which also includes output produced with ODS Graphics. Use the NOPRINT option if you want to create an output data set only.

suppresses displaying the probabilities associated with each correlation coefficient.

suppresses printing simple descriptive statistics for each variable. However, if you request an output data set, the output data set still contains simple descriptive statistics for the variables.

creates an output data set that contains HoeffdingвЂ™s statistics. The contents of the output data set are similar to those of the OUTP= data set. When you specify the OUTH= option, the HoeffdingвЂ™s statistics will be displayed.

creates an output data set that contains Kendall correlation statistics. The contents of the output data set are similar to those of the OUTP= data set. When you specify the OUTK= option, the Kendall correlation statistics will be displayed.

OUTP= output-data-set

OUT= output-data-set

creates an output data set that contains Pearson correlation statistics. This data set also includes means, standard deviations, and the number of observations. The value of the _TYPE_ variable is ‘CORR.’ When you specify the OUTP= option, the Pearson correlations will also be displayed. If you specify the ALPHA option, the output data set also contains six observations with CronbachвЂ™s coefficient alpha.

creates an output data set that contains polychoric correlation statistics. (Polychoric correlation between two observed binary variables is also known as tetrachoric correlation.) This data set also includes means, standard deviations, and the number of observations. The value of the _TYPE_ variable is ‘CORR.’

creates an output data set that contains polyserial correlation statistics. The contents of the output data set are similar to those of the OUTPLC= data set.

creates an output data set that contains Spearman correlation coefficients. The contents of the output data set are similar to those of the OUTP= data set. When you specify the OUTS= option, the Spearman correlation coefficients will be displayed.

requests a table of Pearson product-moment correlations. The correlations range from вЂ“1 to 1. If you do not specify the HOEFFDING, KENDALL, SPEARMAN, POLYCHORIC, POLYSERIAL, OUTH=, OUTK=, or OUTS= option, the CORR procedure produces Pearson product-moment correlations by default. Otherwise, you must specify the PEARSON, ALPHA, COV, CSSCP, SSCP, or OUT= option for Pearson correlations. Also, if a scatter plot or a scatter plot matrix is requested, the Pearson correlations will be displayed.

PLOTS n )> = plot-request

PLOTS n )> = ( plot-request plot-request > )

requests statistical graphics via the Output Delivery System (ODS).

ODS Graphics must be enabled before plots can be requested. For example:

For more information about enabling and disabling ODS Graphics, see the section “Enabling and Disabling ODS Graphics” in ChapterВ 21: Statistical Graphics Using ODS in SAS/STAT 13.2 User’s Guide .

The global plot option MAXPOINTS= specifies that plots with elements that require processing more than n points be suppressed. The default is MAXPOINTS=5000. This limit is ignored if you specify MAXPOINTS=NONE. The plot request options include the following:

produces all appropriate plots.

requests a scatter plot matrix for variables. That is, the procedure displays a symmetric matrix plot with variables in the VAR list if a WITH statement is not specified. Otherwise, the procedure displays a rectangular matrix plot with the WITH variables appearing down the side and the VAR variables appearing across the top.

suppresses all plots.

requests scatter plots for pairs of variables. That is, the procedure displays a scatter plot for each applicable pair of distinct variables from the VAR list if a WITH statement is not specified. Otherwise, the procedure displays a scatter plot for each applicable pair of variables, one from the WITH list and the other from the VAR list.

When a scatter plot or a scatter plot matrix is requested, the Pearson correlations will also be displayed.

The available matrix-options are as follows:

displays histograms of variables in the VAR list (specified in the VAR statement) in the symmetric matrix plot.

specifies the maximum number of variables in the VAR list to be displayed in the matrix plot, where n > 0. The NVAR=ALL option uses all variables in the VAR list. By default, NVAR=5.

specifies the maximum number of variables in the WITH list (specified in the WITH statement) to be displayed in the matrix plot, where n > 0. The NWITH=ALL option uses all variables in the WITH list. By default, NWITH=5.

If the resulting maximum number of variables in the VAR or WITH list is greater than 10, only the first 10 variables in the list are displayed in the scatter plot matrix.

The available scatter-options are as follows:

specifies the values for the confidence or prediction ellipses to be displayed in the scatter plots, where . For each value specified, a ( ) confidence or prediction ellipse is created. By default, .

ELLIPSE=PREDICTIONВ |В CONFIDENCEВ |В NONE

requests prediction ellipses for new observations (ELLIPSE=PREDICTION), confidence ellipses for the mean (ELLIPSE=CONFIDENCE), or no ellipses (ELLIPSE=NONE) to be created in the scatter plots. By default, ELLIPSE=PREDICTION.

suppresses the default inset of summary information for the scatter plot. The inset table contains the number of observations (Observations) and correlation.

specifies the maximum number of variables in the VAR list (specified in the VAR statement) to be displayed in the plots, where n > 0. The NVAR=ALL option uses all variables in the VAR list. By default, NVAR=5.

specifies the maximum number of variables in the WITH list (specified in the WITH statement) to be displayed in the plots, where n > 0. The NWITH=ALL option uses all variables in the WITH list. By default, NWITH=5.

If the resulting maximum number of variables in the VAR or WITH list is greater than 10, only the first 10 variables in the list are displayed in the scatter plots.

requests a table of polychoric correlation coefficients. (Polychoric correlation between two observed binary variables is also known as tetrachoric correlation.) A polychoric correlation measures the correlation between two unobserved, continuous variables that have a bivariate normal distribution. Information about each unobserved variable is obtained through an observed ordinal variable that is derived from the unobserved variable by classifying its values into a finite set of discrete, ordered values. If you specify a WEIGHT statement, the POLYCHORIC option is not applicable.

You can specify the following options for computing polychoric correlation:

specifies the convergence criterion. The value p must be between 0 and 1. The iterations are considered to have converged when the absolute change in the parameter estimates between iteration steps is less than p for each parameterвЂ”that is, for the correlation and the thresholds for the unobserved continuous variable that define the categories for the ordinal variable. By default, CONVERGE=0.0001.

specifies the maximum number of iterations. The iterations stop when the number of iterations exceeds number . By default, MAXITER=200.

NGROUPS=ALLВ |В n

specifies the maximum number of groups allowed for each ordinal variable, where n > 1. NGROUPS=ALL allows an unlimited number of groups in each ordinal variable. Otherwise, if the number of groups exceeds the specified number n , polychoric correlations are not computed for the affected pairs of variables. By default, NGROUPS=20.

requests a table of polyserial correlation coefficients. A polyserial correlation measures the correlation between two continuous variables with a bivariate normal distribution, where one variable is observed and the other is unobserved. Information about the unobserved variable is obtained through an observed ordinal variable that is derived from the unobserved variable by classifying its values into a finite set of discrete, ordered values. If you specify a WEIGHT statement, the POLYSERIAL option is not applicable.

You can specify the following options for computing polyserial correlation:

specifies the convergence criterion. The value p must be between 0 and 1. The iterations are considered to have converged when the absolute change in the parameter estimates between iteration steps is less than p for each parameterвЂ”that is, for the correlation and the thresholds for the unobserved continuous variable that define the categories for the ordinal variable. By default, CONVERGE=0.0001.

specifies the maximum number of iterations. The iterations stop when the number of iterations exceeds number . By default, MAXITER=200.

NGROUPS=ALLВ |В n

specifies the maximum number of groups allowed for each ordinal variable, where n > 1. NGROUPS=ALL allows an unlimited number of groups in each ordinal variable. Otherwise, if the number of groups exceeds the specified number n , polyserial correlations are not computed for the affected pairs of variables. By default, NGROUPS=20.

ORDINAL=WITHВ |В VAR

specifies the ordinal variable list. The ORDINAL=WITH option specifies that the ordinal variables are provided in the WITH statement, and the continuous variables are provided in the VAR statement. The ORDINAL=VAR option specifies that the ordinal variables are provided in the VAR statement, and the continuous variables are provided in the WITH statement. By default, ORDINAL=WITH.

displays the ordered correlation coefficients for each variable. Correlations are ordered from highest to lowest in absolute value. If you specify the HOEFFDING option, the statistics are displayed in order from highest to lowest.

specifies the criterion for determining the singularity of a variable if you use a PARTIAL statement. A variable is considered singular if its corresponding diagonal element after Cholesky decomposition has a value less than p times the original unpartialled value of that variable. By default, SINGULAR=1E 8. The range of p is between 0 and 1.

requests a table of Spearman correlation coefficients based on the ranks of the variables. The correlations range from вЂ“1 to 1. If you specify a WEIGHT statement, the SPEARMAN option is invalid.

displays a table of the sums of squares and crossproducts. When you specify the SSCP option, the Pearson correlations are also displayed. If you specify the OUTP= option, the output data set contains a SSCP matrix and the corresponding _TYPE_ variable value is ‘SSCP.’ If you use a PARTIAL statement, the unpartial SSCP matrix is displayed, and the output data set does not contain an SSCP matrix.

VARDEF=DFВ |В NВ |В WDFВ |В WEIGHTВ |В WGT

specifies the variance divisor in the calculation of variances and covariances. The default is VARDEF=DF.

Table 2.2 displays available values and associated divisors for the VARDEF= option, where n is the number of nonmissing observations, k is the number of variables specified in the PARTIAL statement, and is the weight associated with the j th nonmissing observation.

Table 2.2: Possible Values for the VARDEF= Option