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Latest Discussions

• how to define a column as a label point in a graph by graph builder?

  Hi everyone,I am familiar with Label/Unlabel, feature to make a column data as point labels in a graph. But I have different graphs and I need different column to be labeled on the points for each separately. If I label the column it will show up in all graph and I will have all the columns in the graph that does not really need that label.How I can separately have a column labeled in a graph and ...

  Mikasa

  Discussions |

  Nov 12, 2020 8:33 AM

  9111 views | 3 replies

• How to do Model Selection from Contingency Analysis

  My domain is Consumer Research.  I have 7 explanatory variables and 1 response variable.  All are categorical.My objective is to replace the response variable with one or a combination of the explanatory variables.My approach:Perform contingency analyses of each of the explanatory variables with the response.From the contingency analysis, select the explanatory variable with the highest R-square (...

  TCM

  Discussions |

  Nov 12, 2020 8:15 AM

  1989 views | 2 replies

• How to compute the parameter std error (or standard deviation) from the Hessian returned by the Minimize() function?

  Hello, I have a problem with calculating the standard error of the parameter estimates using minimize() with the optional parameter <<showdetails which returns a few extra values including the Hessian Matrix.  My (rather basic) understanding of the Hessian is that the diagonal elements should be a good approximation of the inverse of the variances. However, I do not get a good agreement between th...

  ragnarl

  Discussions |

  Nov 12, 2020 6:44 AM

  2339 views | 1 replies

• How to extract specified data from a JSL hexadecimal file to a decimal file?

  "Min1.dat" is a hexadecimal file.I have saved the data of the two tables in this DAT file.
  For example, the original data of the file encoded as "113027" looks like this.

  lwx228

  Discussions |

  Nov 12, 2020 5:53 AM

  7030 views | 14 replies

• Why is the RMSE returned by the Linear Fit deviating the sqrt(sum(residuals^2)/n)?

  I am confused regarding the Root Mean Square Error reported in the "Summary of Fit" in the Linear Fit platform. x = [1.309, 1.471, 1.49, 1.565, 1.611, 1.68]; y = [2.138, 3.421, 3.597, 4.34, 4.882, 5.66]; {Estimates, Std_Error, Diagnostics} = Linear Regression( y, x, <<printToLog ); z=Estimates[1]+Estimates[2]*x; rmse_lin_reg=sqrt(sum((z-y)^2)/nrows(y)); as table(x,y,<<Column Names({"x","y"})); b...

  ragnarl

  Discussions |

  Nov 12, 2020 4:31 AM

  2584 views | 1 replies