DISPLAY command

Let us return to the example of semipinacol. The system told us there were four abstracts for this term. We may now see these abstracts by using the display command (DISPLAY or DIS or D), for example,... 

As shown by the first prompt there are four types of search, of which we will discuss two exact and substructure (SSS). In an exact search, only information regarding exactly the stracture given will be retrieved, but even so there may well be several answers, because CA treats stereoisomers and isotopically substituted compounds as separate answers. At the conclusion of the search the system gives the number of answers, (e.g., 4). We may now look at the four answers by using the display command. As in the CA File, there is a choice of display formats, but if we choose SUB we will get (1) the Registry Number, (2) the approved CA index name, (3) other names that have appeared in CA for that compound, (4) a structural formula, and (5) the number of CA references since 1967, along with a notation as to... 

A display of every atom in a protein is often forbidding and incomprehensible. Viewers are interested in some particular aspect of the structure, such as the active site or the path of the backbone chain, and may want to delete irrelevant parts of the model from the display. Display commands allow viewers to turn atoms on and off. Atoms not on display continue to be affected by rotation and translation, so they are in their proper places when redisplayed. Viewers might eliminate specific atoms by pointing to them and clicking a mouse, or they might eliminate whole blocks of sequence by entering residue numbers. They may display only alpha carbons to show the folding of the protein backbone (refer to Plate 5), or only the backbone and certain side chains to pinpoint specific types of interactions. 

Before one can examine whether or not the detection limit is reached one has to move the record pointer to the record for thallium, which is done with the locate command. dBASE compares whether the concentration one wants to analyze is lower than the determination limit for the element (which is stored in concen , a field of the flame database file). dBASE then checks whether the equation (the last statement in the above set of commands) is. T. (True) or. F. (False). In case it is False, the concentration to be analyzed exceeds the determination limit and one can obtain the conditions for the flame method by typing the command display. However, if the concentration is lower than specified, the flameless method must be used. To obtain the conditions for the flameless method, one then has to open the database file containing the characteristics for the flameless method and use the display command. 

After you press SHIFT-N, enter the address where you previously stopped. The prompt will change and you can continue typing. Always enter a New Address that matches up with one of the line numbers in the special listing or else the checksums won t match up. You can use the Display command to display a section of your typing. After you press SHIFT-D, enter two addresses within the line-number range of the listing. You can stop the display by pressing any key. 

Using the Multiple Display command (Display I Multiple Display), see section 3.2.3, compare the three spectra. Note that the root effect is less pronounced with increasing field strength. To enhance the appearance of... 

APTDE 3C 1H experiment (Exp No. 3) using p1 48cf and d2 7.14m. Use the same processing strategy as before and save the Fourier transformed spectrum. Use the DisplayIDual display command to compare pairs of spectra using the Move trace button to shift the second trace appropriately. 

The fprintf is a print (display) command that ofiers a great deal of flexibility. You can use it to print text and/or values with a desired number of digits. You can also use special formatting characters, such as n and t, to produce linefeed and tabs. The following example will demonstrate the use of the fprintf command. 

A DISPLAY (DIS) after each command during the STRUCTURE mode allows for input-checking statements at any moment. This DISPLAY command should not be mixed up with the display of query results. If you have entered the structure completely, enter END. By entering this command, an L-number is created, usually LI. The command SEARCH initiates the structure... 

The command DISPLAY (DIS) may be used subsequently to any other command within the STRUCTURE commands, in order to view and check the entered structure query. You can add different attributes, the most important of which are listed in Table 11. DISPLAY command used separately shows only the structure. 

Table 11. Important DISPLAY commands for structure display...

Beilstein is a factual file, unlike Chemical Abstracts. There is only one entry for every compound, containing a multitude of sources. Every record is divided into many fields, which are individually searchable. In the Chemical Abstracts file, every single record reflects one single citation. This difference is the reason for the very different pricing structure in the Beilstein file. There is not only a fee for connect time and search terms (Sect. 6.2) but also for field display. Thus a warning is given from the start, to rethink before entering the display command ALL. It may cost more than one hundred US (Sect. 7.10.4). The recorded facts are ... 

Display command command to show the results on a monitor, download to harddisk or printer. Search step, format and document numbers must be defined. 

The DISPLAY command is used to fetch and display selected information at the terminal. In this case the registry number, structure diagram, and molecular formula of all compounds registered on the first day of 1978 are displayed. Any subset of the stored data fields may be displayed for each compound and the screen is formatted in the most convenient fashion for the fields selected. To see the next screenfull of information the user depresses the "return" key to terminate the display sequence the... 

STOP command is used. The WHERE clause of the DISPLAY command Is of the same form as In the SEARCH command and may Include non-structural data as well as structure and substructure search requests. The SEARCH and DISPLAY commands differ in that, while both search the database, save the qualifying registry numbers, and present a "hit count" to the user, the DISPLAY command also displays selected Information at the terminal for each compound. 

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