can someone help me figure out how to select cases containing number 1, for example I coded nausea as side effect as 1 and was then noting it with other side effects as 1234 and now i wan to select all combinations with 1 but i cant figure out how. Or at least how to properly name what I am trying to achieve, since I am fairly new to spss so I can try to further search online.
I have tried variable = 1 and variable = 1 and neither worked and a few random commands that did not work either. I have put the variable as string and did not change anything either.
Once you change the variable into text you can use text search commands to find "1" within the text, like this for example:
compute nausea=(char.index(YourVariable,"1")>0).
char.index command searches for "1" in YourVariable - if it is there, it will output it's position in the text. If it isn't there, the output is 0. So nausea will get a value of 1 in all cases that contain "1" and will gat a value of 0 in all cases that don't.
NOTE - if you get as high as 10 in your numbers, this method will fail, as "10" contains "1". In order for any method to work here, you'd need to add a delimiter between the numbers when you record them, e.g. "1,3,8,17,22".
Related
I know that through
select cases if char.substr(variable_name,1,3)="I22".
I can select values based on the first # of characters but this is not exactly my question. I need to select RANGE OF values that start with few characters, here is an example of what I want:
if I have the following cases:
I22A33
I22B33
I22C33
I22D33
So I want to select I22B33 and I22C33 out of the above 4 values, so it's like a range of cases between b and c.
One way to flag any cases that meet your criteria is using INDEX and a series of OR conditions. Not particularly modular, but if you just have a couple of conditions you're searching for it could get you on your way.
Edit: These searches are case-insensitive (due to UPCASE) and search for matches at the start of the string. To search for matches anywhere within the string set the condition to > 0 (instead of = 1).
COMPUTE f_I22 = (INDEX(UPCASE(var_name),'I22B33') = 1)
OR (INDEX(UPCASE(var_name),'I22C33') = 1) .
EXE .
Assuming in this range of values that you want to select, all the values will start with either "I22B" or "I22C", you can simply use:
select cases if char.substr(variable_name,1,4)="I22B" or
char.substr(variable_name,1,4)="I22C".
Our task is create a table, and read values to the table using a loop. Print the values after the process is complete. - Create a table. - Read the number of values to be read to the table. - Read the values to the table using a loop. - Print the values in the table using another loop. for this we had written code as
local table = {}
for value in ipairs(table) do
io.read()
end
for value in ipairs(table) do
print(value)
end
not sure where we went wrong please help us. Our exception is
Input (stdin)
3
11
22
abc
Your Output (stdout)
~ no output ~
Expected Output
11
22
abc
Correct Code is
local table1 = {}
local x = io.read()
for line in io.lines() do
table.insert(table1, line)
end
for K, value in ipairs(table1) do
print(value)
end
Let's walk through this step-by-step.
Create a table.
Though the syntax is correct, table is a reserved pre-defined global name in Lua, and thus cannot should not be declared a variable name to avoid future issues. Instead, you'll need to want to use a different name. If you're insistent on using the word table, you'll have to distinguish it from the function global table. The easiest way to do this is change it to Table, as Lua is a case-sensitive language. Therefore, your table creation should look something like:
local Table = {}
Read values to the table using a loop.
Though Table is now established as a table, your for loop is only iterating through an empty table. It seems your goal is to iterate through the io.read() instead. But io.read() is probably not what you want here, though you can utilize a repeat loop if you wish to use io.read() via table.insert. However, repeat requires a condition that must be met for it to terminate, such as the length of the table reaching a certain amount (in your example, it would be until (#Table == 4)). Since this is a task you are given, I will not provide an example, but allow you to research this method and use it to your advantage.
Print the values after the process is complete.
You are on the right track with your printing loop. However, it must be noted that iterating through a table always returns two results, an index and a value. In your code, you would only return the index number, so your output would simply return:
1
2
3
4
If you are wanting the actual values, you'll need a placeholder for the index. Oftentimes, the placeholder for an unneeded variable in Lua is the underscore (_). Modify your for loop to account for the index, and you should be set.
Try modifying your code with the suggestions I've given and see if you can figure out how to achieve your end result.
Edited:
Thanks, Piglet, for corrections on the insight! I'd forgotten table itself wasn't a function, and wasn't reserved, but still bad form to use it as a variable name whether local or global. At least, it's how I was taught, but your comment is correct!
I have a list of data with a title column (among many other columns) and I have a Power BI parameter that has, for example, a value of "a,b,c". What I want to do is loop through the parameter's values and remove any rows that begin with those characters.
For example:
Title
a
b
c
d
Should become
Title
d
This comma separated list could have one value or it could have twenty. I know that I can turn the parameter into a list by using
parameterList = Text.Split(<parameter-name>,",")
but then I am unsure how to continue to use that to filter on. For one value I would just use
#"Filtered Rows" = Table.SelectRows(#"Table", each Text.StartsWith([key], <value-to-filter-on>))
but that only allows one value.
EDIT: I may have worded my original question poorly. The comma separated values in the parameterList can be any number of characters (e.g.: a,abcd,foo,bar) and I want to see if the value in [key] starts with that string of characters.
Try using List.Contains to check whether the starting character is in the parameter list.
each List.Contains(parameterList, Text.Start([key], 1)
Edit: Since you've changed the requirement, try this:
Table.SelectRows(
#"Table",
(C) => not List.AnyTrue(
List.Transform(
parameterList,
each Text.StartsWith(C[key], _)
)
)
)
For each row, this transforms the parameterList into a list of true/false values by checking if the current key starts with each text string in the list. If any are true, then List.AnyTrue returns true and we choose not to select that row.
Since you want to filter out all the values from the parameter, you can use something like:
= Table.SelectRows(#"Changed Type", each List.Contains(Parameter1,Text.Start([Title],1))=false)
Another way to do this would be to create a custom column in the table, which has the first character of title:
= Table.AddColumn(#"Changed Type", "FirstChar", each Text.Start([Title],1))
and then use this field in the filter step:
= Table.SelectRows(#"Added Custom", each List.Contains(Parameter1,[FirstChar])=false)
I tested this with a small sample set and it seems to be running fine. You can test both and see if it helps with the performance. If you are still facing performance issues, it would probably be easier if you can share the pbix file.
This seems to work fairly well:
= List.Select(Source[Title], each Text.Contains(Parameter1,Text.Start(_,1))=false)
Replace Source with the name of your table and Parameter1 with the name of your Parameter.
I have a dataset with a number of columns. Two of them are practically the same however in variable column 1 there are string data that I would like to extract and replace in empty cells of variable column 2.
I tried using the syntax
If
variable_2 = "".
Compute variable_1 = variable_2.
End If
But do not get anything. Please, could someone help with this?
Much appreciated.
This should be either
if var2="" var2=var1.
(no period after the condition, no "end if")
OR
do if var2="".
compute var2=var1.
end if.
(this is a "do if" and not just an "if" - enables you to add commands after the condition, and not needed here).
In any case, if variable_2 is empty you want to run variable_2=variable_1 and not the reverse.
I want an alternative to running frequency for string variables because I also want to get a case number for each of the string value (I have a separate variable for case ID).
After reviewing the string values I will need to find them to recode which is the reason I need to know the case number.
I know that PRINT command should do what I want but I get an error - is there any alternative?
PRINT / id var2 .
EXECUTE.
>Error # 4743. Command name: PRINT
>The line width specified exceeds the output page width or the record length or
>the maximum record length of 2147483647. Reduce the number of variables or
>split the output line into several records.
>Execution of this command stops.
Try the LIST command.
I often use the TEMPORARY commond prior to the LIST command, as often there is only a small select of record of interest I may want to "list"/investigate.
For example, in the below, only to list the records where VAR2 is not a blank string.
TEMP.
SELECT IF (len(VAR2)>0).
LIST ID VAR2.
Alternatively, you could also (but dependent on having CUSTOM TABLES add-on module), do something like below which would get the results into a tabular format also (which may be preferable if then exporting to Excel, for example.
CTABLES /TABLE CTABLES /VLABELS VARIABLES=ALL DISPLAY=NONE
/TABLE A[C]>B[C]
/CATEGORIES VARIABLES=ALL EMPTY=EXCLUDE.