Date: Sun, 13 Mar 2011 09:03:41 -0700 Reply-To: lcl23 Sender: "SPSSX(r) Discussion" From: lcl23 Subject: Re: how to handle absolute zero values? In-Reply-To: Content-Type: multipart/alternative; Dear Ryan, 1) Type of data: continuous 2) Unit of measurement: (1) leverage: percentage; (2) directorship: integer3) Skewness: (1) leverage: 1.94; (2) directorship: 1.424) Research question: (1) is the level of leverage affects company's decision to perform..... (2) is the number of directorship affects company's decision to perform.....5) Zero values : (1) leverage: 19% of total sample ; (2) directorship: 15%6) Data collection: secondary data from company annual reports --- On Sun, 13/3/11, R B [via SPSSX Discussion] wrote: From: R B [via SPSSX Discussion] Subject: Re: how to handle absolute zero values? To: "lcl23" Date: Sunday, 13 March, 2011, 10:22 PM Do you have two binary variables or two continuous variables? If the latter, what units are they in? Approximately what do the shapes of the distributions look like? Do they appear zero-inflated? What are the research questions you're hoping to answer? How were the data collected? Do you have a natural hierarchy in your data (e.g., persons nested in families)? Please provide more details. Ryan On Sat, Mar 12, 2011 at 8:25 PM, Bruce Weaver <[hidden email]> wrote: > lcl23 wrote: >> >> There are 2 variables (ratio scale) in my data which have more than 15% of >> absolute zero values, i.e. 0= no loan & 0= no asset. While entering the >> data into SPSS, how should I deal with these absolute zero values? Should >> I define all zeros as "missing values", which I think it might change the >> meaning of these zeros? Or should I not doing anything and leave the data >> as it is? >> >> I am going to analyse the data using logistic regression method. Thanks. >> > > > I don't understand where the problem is.  Unlike discriminant function > analysis, logistic regression makes no assumptions about how explanatory > variables are distributed. > > > > ----- > -- > Bruce Weaver > [hidden email] > "When all else fails, RTFM." > > NOTE: My Hotmail account is not monitored regularly. > To send me an e-mail, please use the address shown above. > > -- > > ===================== > To manage your subscription to SPSSX-L, send a message to > [hidden email] (not to SPSSX-L), with no body text except the > command. To leave the list, send the command > SIGNOFF SPSSX-L > For a list of commands to manage subscriptions, send the command > INFO REFCARD > ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD [text/html]

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