Using an Example of SwiftUICharts, I have used the following, to create a line chart:
**LineView(data: [8,23.5,54.8,32,12,37,7,23,43])**
And it works very nicely:-)
However I want to plot x,y rather than just y values
I have tried
Code Block
LineView(data: [1,2,3,4,5,6,7,8,9], [8,23.5,54.8,32,12,37,7,23,43])
(With and without the comma which separates the 2 bracketed “terms”)
And
LineView(data: [(1,8),(2,23.5),(3,54.8),(4,32),(5,12),(6,37),(7,7),(8,23),(9,43)])
All gave errors
Any idea how I should present the data to obtain the x,y line graph?
TIA,
Phil.
Related
Suppose I am using some twoway graph command in Stata. Without any action on my part Stata will choose some reasonable values for the ranges of both y and x axes, based both upon the minimum and maximum y and x values in my data, but also upon some algorithm that decides when it would be prettier for the range to extend instead to a number like '0' instead of '0.0139'. Wonderful! Great.
Now suppose that after (or while) I draw my graph, I want to slap some very important text onto it, and I want to be choosy about precisely where the text appears. Having the minimum and maximum values of the displayed axes would be useful: how can I get these min and max numbers? (Either before or while calling the graph command.)
NB: I am not asking how to set the y or x axis ranges.
Since this issue has been a bit of a headache for me for quite some time and I believe there is no good solution out there yet I wanted to write up two ways in which I was able to solve a similar problem to the one described in the post. Specifically, I was able to solve the issue of gray shading for part of the graph using these.
Define a global macro in the code generating the axis labels This is the less elegant way to do it but it works well. Locate the tickset_g.class file in your ado path. The graph twoway command uses this to draw the axes of any graph. There, I defined a global macro in the draw program that takes the value of the omin and omax locals after they have been set to the minimum between the axis range and data range (the command that does this is local omin = min(.scale.min,omin) and analogously for the max), since the latter sometimes exceeds the former. You could also define the global further up in that code block to only get the axis extent. You can then access the axis range using the globals after the graph command (and use something like addplot to add to the previously drawn graph). Two caveats for this approach: using global macros is, as far as I understand, bad practice and can be dangerous. I used names I was sure wouldn't be included in any program with the prefix userwritten. Also, you may not have administrator privileges that allow you to alter this file based on your organization's decisions. However, it is the simpler way. If you prefer a more elegant approach along the lines of what Nick Cox suggested, then you can:
Use the undocumented gdi natscale command to define your own axis labels The gdi commands are the internal commands that are used to generate what you see as graph output (cf. https://www.stata.com/meeting/dcconf09/dc09_radyakin.pdf). The tickset_g.class uses the gdi natscale command to generate the nice numbers of the axes. Basic documentation is available with help _natscale, basically you enter the minimum and maximum, e.g. from a summarize return, and a suggested number of steps and the command returns a min, max, and delta to be used in the x|ylabel option (several possible ways, all rather straightforward once you have those numbers so I won't spell them out for brevity). You'd have to adjust this approach in case you use some scale transformation.
Hope this helps!
I like Nick's suggestion, but if you're really determined, it seems that you can find these values by inspecting the output after you set trace on. Here's some inefficient code that seems to do exactly what you want. Three notes:
when I import the log file I get this message:
Note: Unmatched quote while processing row XXXX; this can be due to a formatting problem in the file or because a quoted data element spans multiple lines. You should carefully inspect your data after importing. Consider using option bindquote(strict) if quoted data spans multiple lines or option bindquote(nobind) if quotes are not used for binding data.
Sometimes the data fall outside of the min and max range values that are chosen for the graph's axis labels (but you can easily test for this).
The log linesize is actually important to my code below because the key values must fall on the same line as the strings that I use to identify the helpful rows.
* start a log (critical step for my solution)
cap log close _all
set linesize 255
log using "log", replace text
* make up some data:
clear
set obs 3
gen xvar = rnormal(0,10)
gen yvar = rnormal(0,.01)
* turn trace on, run the -twoway- call, and then turn trace off
set trace on
twoway scatter yvar xvar
set trace off
cap log close _all
* now read the log file in and find the desired info
import delimited "log.log", clear
egen my_string = concat(v*)
keep if regexm(my_string,"forvalues yf") | regexm(my_string,"forvalues xf")
drop if regexm(my_string,"delta")
split my_string, parse("=") gen(new)
gen axis = "vertical" if regexm(my_string,"yf")
replace axis = "horizontal" if regexm(my_string,"xf")
keep axis new*
duplicates drop
loc my_regex = "(.*[0-9]+)\((.*[0-9]+)\)(.*[0-9]+)"
gen min = regexs(1) if regexm(new3,"`my_regex'")
gen delta = regexs(2) if regexm(new3,"`my_regex'")
gen max_temp= regexs(3) if regexm(new3,"`my_regex'")
destring min max delta , replace
gen max = min + delta* int((max_temp-min)/delta)
*here is the info you want:
list axis min delta max
This is my goal:
a line graph where for x<10, the line is dashed, and for x>=10, it's a solid line.
I know one way to do it is to have two datasets, one with null values for x>=10, and another one with null values for x<10. However, this solution seems too hacky and also at the joint point (x=10), the tooltip will show two lines.
Is there any way to do this in a clean way?
I have a multi-line graph with 2 datasets, where one set has data for every label and the other has some missing entries.
Is there a way to draw the sparse line such that the data points that do exist are connected?
Found the answer here:
https://stackoverflow.com/a/43232364/247722
Add the following to the options object:
options: {
spanGaps: true,
I haven't been able to find documentation for this param, however, so not sure how well supported it is.
I have an odd issue regarding the SPSS (version 20) use of Chart Template, and any help will be appriciated.
I used the GUI to manualy define a chart template for Histograms. Those are simple definitions:
1) set the x axis between 0 to 100.
2) set the y axis as percent and not as actual number of examples within each bin.
3) set the bin sizes to 5.
4) set the maximal value of the y axis to 20.
I saved the template using the File->Save ChartTemplate option after changing the definitions of one histogram.
Oddly, when I implement the template on a new histogram, only definitions 1,3,4 are generated while 2 is omitted. I searched for a solution and did not find any. This is extremly frustrating since I need to waste time and effort to manualy reset the axis to the right definition over any new histogram I make (which is a lot :/ ).
There might be a way to hack the template code using notepad but I did not see any mention of the Y axis there.
Any help and comment would be much appriciated.
I can't say offhand how to set up a template to do any of those aspects, but here is an example using syntax to specify those four options.
SET SEED 10.
INPUT PROGRAM.
LOOP #i = 1 TO 500.
COMPUTE Var = RV.UNIFORM(0,90).
END CASE.
END LOOP.
END FILE.
END INPUT PROGRAM.
DATASET NAME Sim.
FORMATS Var (F3.0).
EXECUTE.
GGRAPH
/GRAPHDATASET NAME="graphdataset" VARIABLES=Var MISSING=LISTWISE REPORTMISSING=NO
/GRAPHSPEC SOURCE=INLINE.
BEGIN GPL
SOURCE: s=userSource(id("graphdataset"))
DATA: Var=col(source(s), name("Var"))
GUIDE: axis(dim(1), label("Var"), delta(5))
GUIDE: axis(dim(2), label("Percent in Bin"))
SCALE: linear(dim(1), min(0), max(100))
SCALE: linear(dim(2), max(20))
ELEMENT: interval(position(summary.percent.count(bin.rect(Var, binWidth(5)), base.all(acrossPanels()))))
END GPL.
And this is what the graph looks like for me (with my default chart template) in V25.
Task: I have single text, which is wrapped in two lines and each line should have its own gradient. Separating text is not allowed. It needs to look like this:
I tried using fillGradientType: PIXI.TEXT_GRADIENT.LINEAR_HORIZONTAL, fillGradientStops:[0.0, 0.4, 0.6, 0.7, 0.9], but it resulted in:
How can I apply separate gradient to two lines of same text without dividing it?
I've submitted a PR to PIXI which gives you this functionality via a new gradient style, TEXT_GRADIENT.LINEAR_VERTICAL_NOREPEAT
Check out https://github.com/pixijs/pixi.js/pull/4016 for to track its progress and for examples