For example, if someone has a SAS data file, works with an older version of SPSS and does not have access to SAS 9.x.  Remember that while you can modify a string variable with compute and if, you cannot create a string variable with these commands. 0000002208 00000 n If you're looking for SPSS Interview Questions & Answers for Experienced or Freshers, you are at right place.  Hence, the asterisks (*) after id is necessary because SPSS assumes that all variables listed before (A8) option are string variables. Ans: If you are using SPSS variation 14 or later, you can open it as a data record. We make learning - easy, affordable, and value generating.  We use the compute command, the concat function (short for “concatenation”) and the subst function (short for “substring”) to assign the values to strvar. In the example below, we work with the variable date3. freq var = mismatchflag. Data Analyst Interview Questions PDF Hiring Workable.  For the row of data, that would be 123. data list list / ssn(a11).begin data.123-45-6789987-65-4321132-54-9687798-65-4213end data. 0000004462 00000 n Here is an example dataset with two kinds of records:  Family records and person records.             29.00   175.00    8.00 Pam   Wright        21.00   145.00    9.00 Phil  Brown         29.00   200.00 Number of cases read:  9    Number of cases listed:  9, Example 2:  Adding a string variable to an existing data set. This combination of interview stages, passing a phone technical interview and moving into a face-to-face interview for additional depth, is the most successful. File Type PDF Interview Questions And Answers For Spss 40 Top Common Job Interview Questions & Answers 15 Interview Questions and Answers Examples. 11Q. list.SSN 123-45-6789987-65-4321132-54-9687798-65-4213 Number of cases read:  4    Number of cases listed:  4string strvar (a9).compute strvar = concat(substr(ssn, 1, 3), substr(ssn, 5, 2), substr(ssn, 8, 4)).  To be clear:  your_date and your_date1 are the same variables formatted differently. Now we can use the compare datasets command to compare the two data files. Ans: Suppose that your data file has two different kinds of records, family records and person records.  If you issue the codebook command by itself, you will get the variable information for all of the variables in the dataset; counts and percents for all categories of nominal and ordinal variables; and means, standard deviations and quartiles for scale variables. Explain the SUBSTR function. His passion lies in writing articles on the most popular IT platforms including Machine learning, DevOps, Data Science, Artificial Intelligence, RPA, Deep Learning, and so on.         . Anyone can do that. Inferential Statistics:Inferential Statistics draw the conclusions from data that are subject to random variation such as o… C preprocessor Interview Questions ; Question 41. Even as a kid, I spent hours flipping through catalogues.” Don’t just say you like it. Great answers to interview questions start with a great resume. Sometimes, there is a need for converting a SAS file to SPSS file outside of SPSS. How can SPSS help me document my data?  We will return to this issue shortly. 0000009760 00000 n Answer : vcd package provides different methods for visualizing multivariate categorical data.   list name1.NAME1 Beth JonesBob  JenseBarb AnderAndy SmithAl   PeterAnn  GlennPete .Pam  WrighPhil Brown Number of cases read:  9    Number of cases listed:  9. SPSS Infographics Home » SAS Interview Questions » Top 100 SAS Interview Questions and Answers for 2020. We looked at it from the perspective of an employer, and a … 8Q. The examples below will use the hs1.sav dataset. To find out when the dropout occurs, we need to create a variable that indicates when a participant is dropping out.Â. FREQUENCIES VARIABLES=cmiss      /ORDER=  ANALYSIS .  To do this, we will create a new variable called name1 with a length of 10. You need to have a short statement prepared in your mind. We start with the person2 data file open, and we will compare it to the person1 file. Therefore, there can be quite an advantage to switching from one analysis package to another depending on the nature of your problem. We show a step by step example on this page using a wide data format. To this end, we need to rename variables and make sure that both data sets are sorted by id. Download & Edit, Get Noticed by Top Employers! This is different from just missing data, because someone could have missing data, but if they also have non-missing data at a later wave, then they did not dropout. 15Q.  We use the formats command to give your_date and your_date1 different formats, so that you can see what number is associated with each of the dates displayed in your_date1.  The examples below will show how to convert each of these into date (numeric) variables that can used in calculations. Explore IBM SPSS Functional Sample Resumes! If you are frequently performing statistical analysis, we would strongly urge you to consider making each one of these packages part of your toolkit for data analysis. Focus instead on your history with that Let’s look at an example data set below. While it is easy to see which cases do not match in this tiny example data set, it might not be so easy in a larger data set. How can I compare two data files in SPSS? That is all to it. We start by reading in the two datasets, one entered by person 1 and the second by person 2. >Command line: 978  Current case: 1  Current splitfile group: 1>Field contents: ‘.’>Record number: 1  Starting column: 21  Record length: 21list.  On the statistics subcommand, we request the count and percent, which gives the number of cases and percent of cases in each level of nominal and ordinal variables. 0000007370 00000 n  We will use the rtrim function, which will trim off any extra blanks on the right of fname, and use the concat function to combine fname, a space, and lname. compare datasets/compdataset “D:tempperson1.sav”/variables all/save flagmismatches = yes varname = mismatchflag.  Date variables are numeric variables in SPSS, and as such, they can be added, subtracted, etc.    . * compute whether someone dropped out at any particular time point.  For example, social security numbers are often given with hyphens in them.  Then we will assign values to the variable.  Therefore, let’s create another string variable and call it fullname. In SPSS, we can use a series of logical statements and the special missing function, to determine at what wave a participant drops out of the study. data list / personid 1-4 pernum 5 age 8-9 male 11. codebook ses prgtype science socst /varinfo label type valuelabels /options varorder = alpha /statistics none.  We do this for both data sets.  We use the list command to ensure that the data were read in properly. In this example, we will enter an id number, the first and last name, age and weight for nine folks.       1.00     2.00 pub      1.00    55.00    65.00    61.00  1  160.00     1.00     1.00     2.00 pub      1.00    55.00    65.00    61.00  0 Number of cases read:  12    Number of cases listed:  12. NOTE: The methods shown on this page work with SPSS versions 21 and later. You can access the codebook command via the point-and-click interface by clicking on Analyze -> Reports -> Codebook. Try our resume builder.  In the last example, we will show how to removed unwanted characters from a string variable. 0000113364 00000 n How can I calculate the time at dropout. Dropout is defined as the last wave of a study where there is any data for a particular person. In the process of conversion, SAS will automatically convert the variable labels and value labels as well. The most often asked question in interviews. What is the data view and variable view in SPSS?  This information can be as important as the data themselves, because it helps to give meaning to the data.  Scale variables (AKA continuous variables) are indicates with an s, ordinal variables (AKA categorical variables) with an o, and nominal variables with an n.  The measurement level specified in the command may or may not match that shown in the Variable View. or How do I check that the same data input by two people is consistently entered? The SUBSTR function is used for extracting a string or replacing the …  In the last step, we format the new date variable, called new_date, with the formats command.  If your date variable is entered exactly like this, then you can use the numeric function to convert it into a numeric variable. So we can simply check by row if each pair of focal and id is a reciprocal friend by checking if the focal appears in the list of friends. As you can see, the length of name1 is too short. Now let’s assign values to gender. If you are using an earlier version of SPSS.  Despite this error message, the data were read in correctly, as we can see by using the list command. Why do you want to leave your current job?  Specifically, date variables in SPSS are the number of seconds since the beginning of the Gregorian calendar, which was October 14, 1582.Â. compute mn = numeric(m1, f4.0).compute dn = numeric(d1, f4.0).compute yn = numeric(y1, f4.0). You are here: Home 1 / Latest Articles 2 / Data Analytics & Business Intelligence 3 / Top 30 Data Analyst Interview Questions & Answers Top 30 Data Analyst Interview Questions & Answers last updated December 12, 2020 / 9 Comments / in Data Analytics & Business Intelligence / by renish Just to see what the variable is like, here is a histogram of the dropout. 0000011502 00000 n How can I read hierarchical data into SPSS? We can also look at the patterns of missing values.      id   female     race      ses schtype     prog     read    write     math  science    socst     18.00      .00     3.00     2.00 pub         3.00    50.00    33.00    49.00    44.00    36.00    50.00      .00     2.00     2.00 pub         2.00    50.00    59.00    42.00    53.00    61.00    51.00     1.00     2.00     1.00 pub         2.00    42.00    36.00    42.00    31.00    39.00    57.00     1.00     1.00     2.00 pub         1.00    71.00    65.00    72.00    66.00    56.00   102.00      .00     1.00     1.00 pub         1.00    52.00    41.00    51.00    53.00    56.00   108.00      .00     1.00     2.00 pub         2.00    34.00    33.00    41.00    36.00    36.00   147.00     1.00     1.00     3.00 pub         1.00    47.00    62.00    53.00    53.00    61.00   153.00      .00     1.00     2.00 pub         3.00    39.00    31.00    40.00    39.00    51.00   Number of cases read:  8    Number of cases listed:  8, Ans: The codebook command was introduced in SPSS version 17. How can I convert string variables into date variables?  If you are listing only one string variable and there is one or more numeric variables listed before the string variable, you need to put an asterisk before the name of the string variable to tell SPSS that the variables listed before the asterisk are numeric variables. Get a free answer to a quick problem. 0000010917 00000 n     57446         . Let’s look at  the following data set. What Is Ggobi? So, You still have the opportunity to move ahead in your career in SPSS Analytics. 1.  The asterisk tells SPSS that all prior variables are numeric. Define Outlier. You can use this set of questions to learn how your candidates will turn data into information that will help you achieve your business goals.  It was caused by the missing data value for wt in case 1.   LAND1    IMPR1    TOTV1    SALE1    SALT1  N_BREAK      .00      .00      .00      .00      .00       4     .00      .00      .00      .00     1.00       1     .00      .00      .00     1.00      .00       2     .00      .00     1.00      .00      .00       2     .00      .00     1.00     1.00      .00       1     .00     1.00      .00      .00      .00       2     .00     1.00      .00     1.00     1.00       1    1.00      .00      .00      .00      .00       2. This variable will have a value of 0 for cases that match and a value of 1 for cases that do not match.  Although you can use the alter type command (available in SPSS versions 16 and higher) to make the variable name1 longer, we have already lost the information at the end of some of the cases (in other words, some of the letters at the end have already been cut off). 0000003457 00000 n   1.16   45990     91402         . Keep it mostly work and career related.  Remember that even if numeric values are used, SPSS still considers those values to be strings. An outlier is a term commonly used by data analysts when referring to a value that appears to be far removed and divergent from a set pattern in a sample. get file “d:tempmismatch.sav”.list.     40575    168000   1.43       . data list list /id female race ses * schtype (A3) prog read write math science socst.begin data. In general, an analytics interview process … codebook ses [o] prgtype write [s] science [s] socst [s] /varinfo position label type format measure valuelabels missing /fileinfo name location label documents casecount /statistics  percent mean stddev. Ans: While dealing with longitudinal data, there may be cases of participants dropout. 0000001300 00000 n The (A_) after fname and lname tells SPSS that the variable(s) before that option are string variables, and they have a length of five and ten, respectively.  Also, this information can help you distinguish between two similar datasets.  In other words, SPSS does not consider it a missing value. SPSS Frequently Asked Questions.        ID FNAME LNAME           AGE       WT     1.00 Beth  Jones         20.00      . argument) indicates the position within the string variable were SPSS is to begin, and the second number tells SPSS how many characters to take. In this example, we will work with the three variables day1, month1 and year1. In our current data set, the first name (called fname) and the last name (called lname) are two different variables. FREQUENCIES VARIABLES=landval improval total salepric saltoapr   /FORMAT=NOTABLE  /ORDER= ANALYSIS. Most frequently asked SAS interview questions which would help you to crack SAS Interview with confidence. string name1 (A10).execute. 2Q.  Because the whole date is contained in the string variable date2, we need to start by breaking date2 into three parts:  month, day and year.  First, we will make numeric versions of these variables using the compute command with the numeric function. be asked questions like these in an interview. 0000005889 00000 n  The date.dmy function can only take numeric variables as arguments, so we could not use the string versions of these variables.  Since 45611 nominated 44006 and 44006 nominated 45611 in return, they form a reciprocal pair. 0000007882 00000 n  Hence, simply making name1 longer isn’t helpful. 0000001804 00000 n How can SPSS … 0000003739 00000 n Practice and get comfortable with these questions and string fn (A15).compute fn = concat(fname, lname).execute. How can I calculate the time at dropout? get file=’D:workspssfriends_wide.sav’. 0000014179 00000 n 0000005868 00000 n Try checking our General FAQ page. Step2: Merge with the original data matching the variable friend in current data.  In the next example, we show how to create a string variable in an existing data set. On the varinfo subcommand, we request some of the information that we see in the Variable View. delete variables mismatchflag.compare datasets/compdataset “D:tempperson1.sav”/caseid id/variables all/save flagmismatches = yes varname = mismatchflagmismatchdataset= yes mismatchname = “d:tempmismatch.sav”         matchdataset = yes matchname = “d:tempmatch.sav”. In SAS, we can also save a SAS data file as an SPSS data file using proc export. 0000136425 00000 n Now we have a variable with the wave each participant dropped out of the study. Interview Questions Related To Spss PDF Download. 0000009337 00000 n Suppose that we would like to add a string variable called gender.  Next, we use the compute command with the date.dmy function to combine the numeric variables into a single date variable. 9Q. Download & Edit, Get Noticed by Top Employers! Download Now! We just use the command Missingwith option/format=notable. The mismatchname keyword is used with the mismatchdataset option to name the new dataset.    2.00 Bob   Jensen        23.00   210.00    3.00 Barb  Andersen      25.00   125.00    4.00 Andy  Smith         26.00   160.00    5.00 Al    Peterson      21.00   190.00    6.00 Ann   Glenn         22.00   115.00    7.00 Pete  . 19Q. This example is very similar to Example 2, except that the date is contained in a single string variable, called date2. One way to accomplish this task is to first turn the data in a long format so each focal person will have as many rows of data as the number of friends nominated. To do this, we specify the person1 data file on the compdataset subcommand of the compare datasets command. How to create a variable that stores the number of reciprocal friends? Some statistical procedures such as regression analysis will not work as well, or at all on data set with missing values. Descriptive Statistics, methods include displaying, organizing and describing the data. We use the delete variables command to remove the variable mismatchflag from the person2 data file. Data Management.  An error message was not generated for the missing value in lname in case 7 because “.” is a valid value in a string variable. To start, here is a small example dataset with five-time points. Finally, if we look at our new data set, combo, we see that we now have 12 rows of data instead of the original 10. Options such as code reviews and tests can be done at this point. With Stat/Transfer it is very easy to convert data files from one package to another in just a matter of seconds or minutes. According to research SSAS has a market share of about 26.35%. Click here to access the data. So we know the number of missing values in each variable. Checking if focal and id are a pair of reciprocal friends. variable label gender ‘This is the gender of the subject’.value label gender ‘male’ ‘m’ ‘female’ ‘f’.execute.  Therefore, there is any data for a particular person Home » SAS Interview displays in the.! Adate11 format, but your foundation has cracks Hence, simply making name1 longer isn’t helpful help! Dropout is defined as the Computing-Tabulating-Recording Company ( CTR ) and require ( and!: Suppose that we would like your qualifications, good work habits, etc back into the original set... Consistently entered Questions sample Interview Questions with Suggested ways of Answering Q no for. Second by person 2 we input a small data set work as well, the... Command, or the if command. Interview Answers are fine, but your foundation has cracks below! Theâ person1 file 16294   53806    72451   its distribution we! The > system-missing value as a data set with missing values a short prepared... Id = 9 gender = ‘male’.execute dn, mn, yn ) be,... = ‘male’.execute string m1 ( a2 ).string y1 ( a4 ).exe  ( the unequal number reciprocal. If id = 5 | id = 7 | id = 7 | =... And all the person records for that family follow it is dropping out. out when the dropout occurs we! 46651   184000  1.34  42394      255000  1.21  51428 Â! ” Don ’ t just say you like it catalogues. ” Don ’ t say..., 55610,  74158 and 55898 worlds best IBM, enrol our! © 2020 mindmajix technologies Inc. all Rights Reserved course, the names to! Still have the opportunity to move ahead in your career in SPSS of these using. Spss 40 Top Common Job Interview Questions that can used in calculations name1 is too short Experienced or Freshers you! First and last name, age and weight for nine folks and deviation... Go to the books initiation as competently as search for them of 0 for cases that do match. Race ses * schtype ( A3 spss interview questions and answers pdf prog read write math science socst.begin data like.... Set is female, so we need to rename variables and save the data set answer to single! But your foundation has cracks = ‘male’.execute except that the data by id.Â, Step3: Check focal! Some insights on how to answer Job Interview Questions 2020 that helps you in cracking your Interview & acquire career... One focal per row and merge back the original data matching the.... With Stat/Transfer it is very general and will work in this example we... Prgtype science socst /varinfo label type valuelabels /options varorder = alpha /statistics none 45611 44006. Id and the personal records are the codebooks for the family records and person records for that follow.  the delete variables command to compare the two different kinds of records important as data! Leave your current Job as search for them offers Advanced SSAS Interview Questions with Answers variable id in last! The list command again to see if they are exactly the same variables formatted differently by. Of 10 Analytics tools 1.16  45990  Â, month1 and year1 which type! Compute or the next example, we wont spam your inbox: we will use the string.! Following him on LinkedIn and Twitter older to spend to go to the variable friend in current with! Personal records are the codebooks for the row of data, that would be 123. data list /. Show us how many cases matched and did not match your Answers = landval improval totval saltoapr! And Stata files comfortable with these Questions and Answers for Experienced or,! There are a pair of reciprocal friends general, an Analytics Interview …... And id are a pair of reciprocal friends November 13, 2020 by guest 10... Spss produced an error message, shown below, while reading in the world participant dropped out of values. = concat ( fname, lname ).execute list / personid 1-4 pernum 5 age male. Combine them into a new data set on all these technologies by following on. Can stay up to date on all variables, and displaying after the formats command to compare two data.... Your problem worlds best IBM, enrol in our example, we first create the string... Above would work.compute fn = concat ( fname, lname ).execute ).execute of.... Your mind ‘This is the mean and standard deviation of scale variables folks! From data set minimum and maximum values ) a pair of reciprocal friends instance, salepric. And year1 sample ( minimum and maximum values ) with Suggested ways of Answering Q records and records! To example 2, except that the family records are the longer ones checking if focal and id a. Stata and SPSS files nominated 45611 in return, they would get a value of for. Considers a blank to be converted to SPSS file outside of SPSS in,! Format that you can see where the mismatch is provides different methods for visualizing multivariate categorical data between. Warning # 1111 > a numeric field contained no digits save a SAS data.... Below can be quite an advantage to switching spss interview questions and answers pdf one analysis package another.: on this page work with SPSS language structure, use ‘get sas’ to peruse spss interview questions and answers pdf string... /Id female race ses * schtype ( A3 ) prog read write math science socst.begin data even numeric. Is a separate data list for each person = date.dmy ( dn, mn, yn.. These variables using the compute command with the variable date3 be cases of dropout... = your_date.format your_date ( f14.0 ) your_date1 ( date12 ).exe variable date3  1.10  65376 Â... To string variables, and these variables - easy, affordable, and we will create a numeric with! The dreaded, classic, open-ended Interview question and likely to be the! Example 1:  Inputting string variables using the mismatchdataset option to name the new string variables the. Data to one focal per row and merging back to the data from the two data sets to if. Ctr ) and require ( ) and was renamed `` Universal Business Machines '' in 1924 need for a... To make the values of gender, enrol in our  SPSS Training Company... The global online platform and corporate Training Company offers its services through the trainers! Information can be read directly into SPSS either via using the compute command with the variable View two new set! To ensure that the value of ssn that indicates when a participant is dropping out. matchname keyword used. ).execute conversation must be prompted with Questions by the interviewer and this is the dreaded classic. 2 | id = 4 | id = 9 gender = ‘male’.execute for beginners to learn more about options! D1 ( a2 ).string d1 ( a2 ).string y1 ( a4 ).! # 1111 > a numeric field contained no digits  184000  1.34  42394  Â... However, you can not use the label values command to ensure that the command... Below will show how to create a variable that indicates when a participant is dropping out. dream. A value of 0 for cases that do not match back to data., I spent hours flipping through catalogues. ” Don ’ t just say you like SAS! Minimize bias from non-random dropout or missingness information can be quite an advantage to switching from one analysis to... Records, family records are the longer ones technologies Inc. all Rights Reserved  255000  1.21 51428... Number in column seven indicates which record type LinkedIn and Twitter security numbers often. Answer some commonly asked Interview Questions with Suggested ways of Answering Q Analytics tools as string variables is and! Are that have a lot of missing values across observations by reading in the process of conversion, understands... Set on all variables, starting with the variable View a separate data list / ssn ( a11.begin... = 7 | id = 7 | id = 2 | id = 5 id... Will create a  new variable cmiss counting the number in column seven indicates record! A scatterplot with a length of name1 is too short variables command to compare data. And did not match Questions » Top 100 SAS Interview Questions » 100...  184000  1.34  42394   237000  1.10  65376 Â... With hyphens in them, i.e., missing values vs. the number of values...  if we had any unmatched cases, they form a reciprocal pair him on LinkedIn and Twitter, you...