DPlot

David, thanks, I'll try my hand at the add-in.

Hi David,

I emailed you the Excel spreadsheet containing the data array and its transposition.

Hi David,

This is what I'm doing:

I'm "transposing" the X axis and the series , see images below; the second image would be an end-view of the first.

I'm currently doing this using a spreadsheet to transpose my data array, and then I copy/paste into DPLot.

http://img35.imageshack.us/img35/2836 ...

David, thanks.

Ok, thanks.

Where can I find the XYZscatter addin...?

Labeling a data point places a label box with an arrow pointing to the data point...

can the arrow head be changed to a different symbol, like a dot or a square (hollow or filled, selectable size)...?

When you open/paste a Z table (a table with X and Y axes, and a 2D matrix of data Z), you get a series of curves with common X and Y axes (the series would be the Z axis)...

question: is there an easy/quick way to transpose X and Z, or Y and Z, or X and Y...?

( i.e. I want a different axis to be ...

Oh, in my email did you see the extra data points (i.e. 7x8 instead of 7x7)...?

David, ok thanks...

in the meantime I'll learn how to write a spreadsheet macro to linearize the array.

Hi David,

Now I have a Z table where:
for Y<2400 the Y increment is 200
for Y>2400 the Y increment is 400

i.e. the Y axis is not evenly spaced (see pic below).

How would I enter this data so I can plot it...?


http://img819.imageshack.us/img819/1401/b5913.png


The .csv file contains:
,0.08,0 ...

Ok, and thanks for your help.

I reinstalled DPlot, updated to latest, and now I can't repeat the problem...

[ lol, problem must be between keyboard and seat ]

now I only see the 7x8 (instead of 7x7) problem as I said in my email.

DPlotAdmin wrote:Since all your Z values = 10, I don't either. Either that isn't the file you opened, or something is really wrong. You're welcome to send me your file.

File sent.

I only have Quattro Pro.

File contains this (tab separated):

10 10 10 10 10 10 10
10 10 10 10 10 10 10
10 10 10 10 10 10 10
10 10 10 10 10 10 10
10 10 10 10 10 10 10
10 10 10 10 10 10 10
10 10 10 10 10 10 10

From DPLot I open that file using Z Table, I specify X/Y min/max to be 0/0 and 60/60, I see an empty looking ...

Ok, thanks, I'll give the Z Table input method a try.

I know how to plot a 3D surface from a straight list of X,Y,Z values in a .csv file.

But how would I plot a 3D surface when the .csv file contains the data arranged in an M * N array with the X-values across the top,
Y-values down the left side, (possibly a table name in the upper left corner ...

Ok, thanks.

DPlotAdmin wrote:...

If you don't have Excel but your rows and columns have equal spacing in X and Y, you can read a file of Z values only with the "Z Table" file import plugin.

How do I do this...?

Thanks,
Joe

Oh, I don't have Excel, I have Quatro Pro instead.

If I didn't install with the Add-In how can I add the Add-In now...?

Hi Dave,

How do I create a 3D surface from a set of 2D curves...?

Thanks,
Joe

Hi,

I have a spreadsheet containing an MxN array of values...

The axes of the array are X and Y, and the values are Z...

Can I copy/paste that array into DPlot and arrive at a 3D plot...?

If I can do that, then can I change the interpolation (i.e. "Equal Interval") as I did in my other post ...

Is there an operator for "not equal"...?

Ok, thanks.

would I have to do this afterwards by editing the .csv file...?

Yes, or you could save yourself a bit of trouble with a couple of manipulations first.

1) Edit>Operate on Y with "if(mod(x,7)=0,y,<some arbitrarily large value>)"

This will set all Y values for which X is not a multiple of 7 to ...

Ok, how about this...

- import data points via .csv file,
- do Equal Interval (0.001, linear) to "fill in" by interpolation,
- do Edit Data and delete the points not wanted...
- save as .csv (further edit to delete the points not wanted).

The third step is tedious... is there a way to select ...

Is there a way to do arithmetic (subtraction) on two curves to produce a new curve...?

Hmmm... I tried Equal Intervals and I didn't like what it did...

Let me try a different approach...

For a given curve, I want to save it as .csv, but I want only the points for specific values of x...

[would I have to do this afterwards by editing the .csv file...?]