I have sets of gene probes that are upregulated when put under different chemical stresses. Each column contains all of the upregulated gene probes. I have 12 columns, how do I get a list of gene probes that appear in all 12 columns?
I've been able to find similarities between two columns using the formula
=IF(ISERROR(MATCH(A2,$C$2:$C$21473,0)),"",A2)
but cant work out how to adapt it to include 12 columns
G.Ac G.As G.At G.Ac.At G.As.Ac G.As.At G.Cd G.Cu G.Ni
G.Cd.Cu G.Cd.Ni G.Ni.Cu
GENE:JGI_V11_3346220103 GENE:JGI_V11_2653050203 GENE:JGI_V11_3299790103
GENE:JGI_V11_359040103 GENE:JGI_V11_2228010103 GENE:JGI_V11_2662750203
GENE:JGI_V11_1926920303 GENE:JGI_V11_3134270303 GENE:JGI_V11_3119540303
GENE:JGI_V11_3134270203 GENE:JGI_V11_1926920303 GENE:JGI_V11_3134270303
GENE:JGI_V11_3164760203 GENE:JGI_V11_565470303 GENE:JGI_V11_2296170203
GENE:JGI_V11_2045300203 GENE:JGI_V11_2421620203 GENE:JGI_V11_2228010303
GENE:JGI_V11_2196580303 GENE:JGI_V11_3134270203 GENE:JGI_V11_3119540203
GENE:JGI_V11_1926920103 GENE:JGI_V11_1926920103 GENE:JGI_V11_1014720202
GENE:JGI_V11_478830203 GENE:JGI_V11_3168730303 GENE:JGI_V11_3311070202
GENE:JGI_V11_3216620102 GENE:JGI_V11_2653050303 GENE:JGI_V11_3300140202
GENE:JGI_V11_2653050303 GENE:JGI_V11_1159220202 GENE:JGI_V11_2024180303
GENE:JGI_V11_1926920303 GENE:JGI_V11_2196580303 GENE:JGI_V11_1159220202
GENE:JGI_V11_3164760303 GENE:JGI_V11_2228010203 GENE:JGI_V11_2341670203
GENE:JGI_V11_1938910303 GENE:JGI_V11_3026230203 GENE:JGI_V11_2449230203
GENE:JGI_V11_3134270303 GENE:JGI_V11_2235750203 GENE:JGI_V11_1981410203
GENE:JGI_V11_3251310202 GENE:JGI_V11_977750103 GENE:JGI_V11_954070203
GENE:JGI_V11_2267320203 GENE:JGI_V11_2268000303 GENE:JGI_V11_2226270101
GENE:JGI_V11_3003640303 GENE:JGI_V11_223520203 GENE:JGI_V11_2662750103
GENE:JGI_V11_2228010103 GENE:JGI_V11_3251310202 GENE:JGI_V11_3198630203
GENE:JGI_V11_3134270303 GENE:JGI_V11_1926920203 GENE:JGI_V11_287750103
GENE:JGI_V11_465160203 GENE:JGI_V11_2268000203 GENE:JGI_V11_2473230303
GENE:JGI_V11_3192220102 GENE:JGI_V11_3026230303 GENE:JGI_V11_3039310303
GENE:JGI_V11_1926920103 GENE:JGI_V11_1159220102 GENE:JGI_V11_3052790202
GENE:JGI_V11_3075830303 GENE:JGI_V11_2196580203 GENE:JGI_V11_3134280203
GENE:JGI_V11_3142970303 GENE:JGI_V11_503720303 GENE:JGI_V11_2236410103
GENE:JGI_V11_3042230103 GENE:JGI_V11_2228010203 GENE:JGI_V11_3028210101
GENE:JGI_V11_2105710303 GENE:JGI_V11_1926920303 GENE:JGI_V11_2131620103
GENE:JGI_V11_1002840203 GENE:JGI_V11_2088480203 GENE:JGI_V11_3196120102
Heres the first 8 rows of the 12 columns. There are 21473 rows in total.
Thanks
You could use an array formula like this to count how many columns a particular gene probe occurs in
=SUM(--(MMULT(TRANSPOSE(ROW(A$2:L$10000)^0),N(A$2:L$10000=A2))>0))
This is a standard way of getting column totals for a 2D array - in this case an array of true/false values corresponding to instances of an array element being equal/unequal to A2.
It is rather a brute force approach - it needs ~120K multiplications for each row. If you copy the formula down for ~10K rows, there is a delay of ~100 seconds on my computer while Excel works out the results.
Must be entered as an array formula using Ctrl Shift Enter
In this dummy data C is the only value that occurs in all 12 columns.
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