Does anyone know a way to make the vaxis scale increment in whole numbers (so I want it to show 1,2,3,4,5,6).. but the maximum should be variable based on the maximum value.. so setting the ticks fixed is not a option.
I use;
vAxis: {format:'\u20AC#', title: 'Euros' },
I know why it doesnt show 1 and 4 in the below example.. because if I show decimals it's actually 1,5 and 3,5. I just want a logic count from 1 till X with steps of 1..
Related
I'm trying to display a formatted string for thousands and million amounts for only certain ticks on a horizantal stacked bar chart.
See line 18 (which works): https://stackblitz.com/edit/angular-sl5pqg
If the line is changed to const actualAmount = 12500000;, I am expecting "$12.5M" to be displayed on the first tick point I want to display but it's coming up blank.
Could someone kindly let me know what I'm doing wrong?
Many thanks!
Ben
Your code looks fine but you need to define ticks.autoSkip: false:
ticks: {
...
autoSkip: false,
Please have a look at the amended StackBlitz
If autoSkip is true (default), Chart.js automatically calculates
how many labels can be shown and hides labels accordingly. Labels will
be rotated up to maxRotation before skipping any. Turn autoSkip
off to show all labels no matter what.
currently I'm experimenting a bit with RRDTool. I'm aware that the accuracy gets lower the longer the time periods are selected. But I thought I could bypass this with my datasource settings.
For example temperature and humidity from my house, resoultion 1h:
And now with the resolution of 1d:
As you could see, there is a great difference for the max. value of the blue line.
I created my datasources and archives with this values:
"rrdtool create temp.rrd --step 30",
"DS:temp:GAUGE:60:U:U",
"DS:humidity:GAUGE:60:U:U",
"RRA:AVERAGE:0.5:1:1051200",
"RRA:MAX:0.5:1:1051200",
"RRA:MIN:0.5:1:1051200",
I thought that 1051200 (1 year = 31536000 / 30 s (resoulution) = 1051200) is correct for saving every value for a year and that there should be no need for interpolating.
Is it possible to get the exact values displayed even if the resolution changes (for example the max humidity (Luftfeuchtigkeit) at 99.9%)?
Here are my values for image creation:
"--start" => "-1h", (-1d etc-)
"--title" => "Haustemperatur",
"--vertical-label" => "°C / % RLF",
"--width" => 800,
"--height" => 600,
"--lower-limit" => "-5",
"DEF:temperatur=$rrdFile:temperatur:LAST",
"DEF:humidity=$rrdFile:humidity:LAST",
"LINE1:temperatur#33CC33:Temperatur",
"GPRINT:temperatur:LAST:\t\tAktuell\: %4.2lf °C",
"GPRINT:temperatur:AVERAGE:Schnitt\: %4.2lf °C",
"GPRINT:temperatur:MAX:Maximum\: %4.2lf °C\j",
"LINE1:humidity#0000FF:Relative Luftfeuchtigkeit",
"GPRINT:humidity:LAST:Aktuell\: %4.2lf %%",
"GPRINT:humidity:AVERAGE:Schnitt\: %4.2lf %%",
"GPRINT:humidity:MAX:Maximum\: %4.2lf %%\j",
Thanks for your help and any suggestions.
P.S. I'm using a library to generate the graphs and the database, please do not be surprised about possible syntax errors.
Your problem is that you are causing the values to be rolled-up on the fly at graph time, but have not correctly specified which rollup function to use. Your second graph is showing the MAXIMUM of the LAST in the interval, not the true Maximum.
There are a few issues to explain with this configuration:
Firstly, your RRD is defined using 3 RRAs with 1cdp=1pdp and different consolidation functions (AVG, MIN, MAX). This means they are functionally identical, but they do not save you any time at graphing as they have not done any pre-rollup for you! You should definitely consider having just one of these (probably AVG) and adding others at lower resolution to help speed up graphing when you have a bigger time window.
Secondly, you need to specify the on-the-fly rollup function. When graphing, RRDTool will work out the best RRA to use based on your DEF lines, and will perform any additional consolidation required on the fly. This can take a long time if the only available RRA is too high-granularity.
Your graph request uses DEF:temperatur=$rrdFile:temperatur:LAST but you do not actually have a LAST type RRA, so RRDTool will grab the last average. Your RRA data points are at 30s interval, but your second graph has (approx) 5min per pixel, meaning that RRDTool needs to grab the 10 entries from the RRA, and print the last. Looking at the data in the top graph, it seems that the last in that interval was the 66 value, though previous ones were 100.
So you have a choice. Do you want the graph to show the average for the time period, the maximum, or both? Do you want the figures at the bottom to show the maximum of the average, or the maximum of everything?
For example
"DEF:temperatur=$rrdFile:temperatur:AVERAGE",
"DEF:humidity=$rrdFile:humidity:AVERAGE",
"DEF:temperaturmax=$rrdFile:temperatur:MAX;reduce=MAX",
"DEF:humiditymax=$rrdFile:humidity:MAX;reduce=MAX",
"LINE1:temperatur#33CC33:Temperatur",
"LINE1:temperaturmax#66EE66:Maximum Temperatur",
"GPRINT:temperatur:LAST:\t\tAktuell\: %4.2lf °C",
"GPRINT:temperatur:AVERAGE:Schnitt\: %4.2lf °C",
"GPRINT:temperaturmax:MAX:Maximum\: %4.2lf °C\j",
"LINE1:humidity#0000FF:Relative Luftfeuchtigkeit",
"LINE1:humiditymax#3333FF:Maximum Luftfeuchtigkeit",
"GPRINT:humidity:LAST:Aktuell\: %4.2lf %%",
"GPRINT:humidity:AVERAGE:Schnitt\: %4.2lf %%",
"GPRINT:humiditymax:MAX:Maximum\: %4.2lf %%\j",
In this case, we define a separate DEF for the maximum data set, so that we can always obtain the highest value even after consolidation. This is also used in the GPRINT so that we get the MAX of the MAX rather than the MAX of the AVERAGE. The Maximum line is now drawn separately to the average line, so that we can see the effect of any rollup of data - the lines will be together at high-resolution but get further apart as the time window widens and resolution decreases.
TheDEF is set to force any rollup function used for the maxima to be MAX rather than AVG, so we can be sure to get the maximum rather than average of maxima.
We are also using AVERAGE rather than LAST in order to get more meaningful data after rollup. Note that we could also use a separate DEF for the LAST as well if we wanted to though it is of less usefulness.
Note that, if you ever expect to be generating graphs over more than a few days, you should definitely consider adding some lower-resolution RRAs for AVERAGE and MAX or else the graphs will generate very slowly. RRDTool is designed with the intention that data will be rolled up over time, rather than (as in a traditional database) every sample kept as-is. So, unless you really need to have 30s resolution data kept for an entire year, you may prefer to keep this high resolution data for only a week, and then have separate RRAs that roll up to 1 hour resolution and keep for longer. Many people keep the 30s for 2 days, then 30min-summary for 2 weeks, 2h-summary for 2 months, and then 1day-summary for 2 years.
For more information, see the RRDTool manual pages.
I am new to Stack overflow but I am having logic issues with Google sheets and need some advice on how to proceed.
My goal is I have 3 cup sizes, small medium and large. Example: Small holds 50ML, Medium 100ML,Large 200ML,etc
I want to take a large number and evenly distribute it among the cups to show me how many cups I will need with the least amount of cups used. Example : 170ML = 1 Large, 0 Medium, 0 Small. I only need 1 large to hold everything. Also, 240ML would suggest 1 Large, 0 medium, 1 small. Since small can hold the remaining 40 and medium would be too big of a container.
Problem is I don't understand how to break down my original large number into the smaller number as I have to check and compare if it will fit, I also have to be able to add more if there's a remainder and as far as I know the Google sheet functions only run and represent numbers once.
I've already tried breaking it down to my large container first then in my second row with medium cups I take the first result and subtract from my large number to see if anything is left. If there is, all I can do is add 1 or set the number, I can't seem to scale it up if it requires more than 1 cup which isn't what I want.
I've been going crazy trying to find an easy solution to this but it seems to get more complex as if I need IF statements of some kind.
If anyone has any ideas I'd be happy to hear them out.
you could use IF statement for example like this:
=ARRAYFORMULA(IF(A2:A<>"",
IF(A2:A>=B1, QUOTIENT(A2:A, B1),
IF(A2:A> C1+D1, QUOTIENT(B1, A2:A), 0)), ))
I have this Column Chart using Google's Visualization Chart API tools. How would I make it so the y-axis numbers are only positive whole numbers? I've tried looking through the documentation but can't seem to find anything.
I used the following and have not seen fractions since...
vAxis:{minValue:0,maxValue:5,gridlines:{count:6}}
The trick seems to be that with 6 gridlines and 5 as lowest 'high' value,
the halves and tenths aren't applicable anymore.
This worked for me
vAxis: {minValue:0, format:'#'}
Simply use hAxis.format
example :
hAxis: {minValue:0,format:'0'},
format 0 = Digit
Positive numbers:
You can use vAxis.minValue to set the lowest y-axis gridline, however the actual value of the gridline will be the minimum of what you set and the lowest value in your data, so if you have 0 in your data (as it seems you do for Unsatisfactory), this value will be used for the lowest y-axis gridline.
Whole numbers:
http://groups.google.com/group/google-visualization-api/browse_thread/thread/04a001766367dc0f/84c34338c2808069 - this is an older post, but as there is nothing in the chart API documentation, it seems the functionality to specify whole numbers only is still lacking.
Because the chart defaults to 5 gridlines (this is what you'd like to be able to override), if your highest data value is 2.0 (like in the example) you could force whole numbers by setting vAxis: {maxValue: 5}, although this may not be the most elegant solution.
you can use the axisLabels feature.
To use it, you must manually edit your axixLabels as shown here: http://code.google.com/apis/chart/image/docs/chart_params.html#axis_labels
e.g.:
chxt=x,y
chxp=0:|Excellent|Very Good|Fair|Unsatisfactory|1:|0|1|2
Greetings,
Jan
If you change your graph type as follow:
google.load('visualization', '1', {'packages':['linechart']});
will work for you..
var max=Math.max(1,10,15,20);(u have to pass the values what the values u have)
var maxvalue= max / 4;
var res=Math.floor(maxvalue);
res=res+1;
var remin= max % 4;
if(res != 0) {
maxvalue=(res * 4);
}
else
maxvalue= 4;
use the above code its working fine for me.
The only workaround that I could find to this problem is that... For example, the default grid divisions are 4. You could change that number. But incase of the default (4) the vAxis.maxValue should be divisible by 4, if now increment that number so that it is.
what is wrong with ratio? (100,200)
https://chart.googleapis.com/chart?cht=p&chd=t:100,200&chs=300x120&chl=Hello|World
As marcog explained, by default values over 100 will be truncated to 100, thus causing your api call to be processed in the background as:
https://chart.googleapis.com/chart?cht=p&chd=t:100,100&chs=300x120&chl=Hello|World
which is why you see a pie chart with two equal pieces. One way to fix this is to add a custom scale to your data series using the chds parameter like this:
https://chart.googleapis.com/chart?cht=p&chd=t:100,200&chds=0,200&chs=300x120&chl=Hello|World
Note I added a &chds=0,200 to specify that values can range from 0 to 200.
Another option is to use percentages rather than actual values
Hope this helps.
The values need to be between 0 and 100, with values above 100 truncated to 100 (reference).
Had a quick mess around with the URL. Is it possible there's meant to be a "total" parameter in the URL? Since 3 parameters just splits it equally into 3 parts...